AD-A183 267 AT *1 1/3A V · 3. Sm S Sep 78 Jan 60 Same Same Save N/A 0-7 4. Same Same rob an Har 69 Sam Sae Sam :/A 15-30 Closed most S. Same Sam" Aprt OS Jan SS Same Sam Sam N/A

k AD-A183 267 AT *1 1/3A V

UKcLSrrFIED U A JI DS- /G/ 2 M

EMML

MAICRX)OPY RtSOLUTOJN4EST CHAT

19 JAN IT$8

OPERATING LOCATION - A DT[CSELECTEUSAFETACJ

Air Weather Service (MAC) N

LE"LIMITED SURFACE OBSERVATIONS"

XS TAr CLIMATIC SUMMARY "LISOCS"

ZIERIKZEE NL MSC #063250N 51 39 E 003 56 ELEV 6 FT

y PARTS A - F HOURS SUMMARIZED: 0000 - 2300HRS VARIABLE

PERIOD OF RECORD:HOURLY OBSERVATIONS: MAY 77 - APR 87SUMMARY OF DAY DATA: NONE

FEDERAL BUILDING"Approved for public releassDistribution Unlimited."ASIEVILLE, N.C. 28801 - 2723

88 1 26 u27

Accesion For

NTIS CRA&IVTiC TAB rUnanC;rG:ced [J

C fBy

LIMI7ED SURFACE OfSLRVAIIONS CLIATIC SUM MARY

STATION NAMT : ZIERIKZEE NL

STATION NUMBLO: 0132 50 CALL 10: NNACPERIOD OF RECORD: HOURS SUMMARIZED: 0010 - 2300 LST

( HOURLY O'"SERVAIIONS: MAY 77 - APR 87

SUMMARY or DAY DATA: NO AWS FPOMS IDA AVAILABLE FROM WHICH T0 ORTAIN DATA.C/TIME CONVERSION LST TO 'MY -I

C DATE PRODUCED: 0 JUN a?

* CSPECIAL NOTE ON OBSERVA71ONAL COUNTS: LOW OBSERVATIONAL COUNTS PREVAIL THDPIIoHOUT THIS

SUMMARY. FROM APR 19b' YHROU(,H JArN 19q6, ONLY 6-HOURLY OBSERVATIONS WERE TRANSMITTED LONG-

LINL. FOR THE AEMA INI'Jb VEARS, THr OWDERVATIONS VARIED FROM 15 TO 30/3\ DAY!, Of OPSERVATIONS PER PONTH.C.

C

-J

OL-A/usAFETAC/MAC/A S LIMITED SURFACE OBSERVATIONS CLIMATIC SUMMARIES--LISOCSASHEVILLE NC 28.0l

HOURLY OBSERVATIONS: ALL RECORD OR RECOkl) SP-CIAL OBSERVATIONS RECORDED ON THE AWS FORMS IC/IDA AT SCHEDULED HOURLYINTERVALS.

SUPPLEMENTAL DATA: DATA DERIVED FORM EARLIER PERIODS IF AVAILARLE, AND/OR FROM OE OR PORE REPRESENTATIVE SITESAND COMBINED 3Y A 4LTrOROLOGIST.

DESCRIPTION OF SUMMARIES: "NECEEDING EACH PA;T OF THE RUSSWO IS A BRIEF DISCUSSION OF THE SUMMARY INCLUDING THEMANNER OF PRESENTATION.

HOURLY SUMMARIES CONTAINING "TOTALS" AND "ALL HOURS" ARE ONLY FOR THOSE HOURS SUM"ARIZEE. IN COMPUTING THESE VALUESTHE VALUES IN THE 3-HOUR TIME GROUPS WERE ADDED AND DIVIDED B

Y THF NUMBER OF GROUPS.

STANDARD 3-HOUR TIMde GROUPS: IN ALL SUMMARIES SHOWING DIURNAL VARIATIONS, WE SUMMARIZE DATA USING THEFOLLOWING EIGHT 3-NOUY TIME PERTODS IN LOCAL STANDARD TIME: 0000-0200. OIGO-OSl0, 0600-OB0O. 090L-Ilia,

1200-l4oo, 1500-1730, IOO-2000. 2100-2300 LST.

FOR A DETAILED DESCRIPTION OF EACH SUMMARY WITH EXAMPLES AND FXERCISES ON ITS USAGE, SEE USAFETAC/TN-R3-O01, "AN

AID FOR USING THE REVISED UNIFORM SUMMARY OF SURFACE WEATHER OBSERVATIONS" (RUSSWOI.

TABLE OF CONTENTS

STATION HISTORY

PART A: WEATHEI CONDITIONS AND ATMOSPt-RIC PHENOMENA SUMMARIES

PART 6: SEE SUPPLEMENTAL DATA SECTION BELOW

PART C: SURFALE WIND SUMMARIES

PART 0: CEILIN5 VESIPS VISIbILITY AN-. SKY COVER SUMMARIES

PART F: TLMPERAIIuE ATIn RELATIVE HUMIDITY SUMMARIES

PART F: PRESSURL SUMaMIFS

SUPPLEMENTAL DATA SEClION--SuMMARY OF DAY DATA

AdSMSC NUMBER: THIS %UM VR IS THE AIR LATHLR SERVICE MASTrR STATION CITALO NUMPLO. THIS NUMBER Is COV'PRISED OFIHF WHO NUPBE. WITH TH ADDITION OF A "DEFIX IC THPOUGH 91. IN CASES VHrRF THEBE Is NO DESIGNATED WPO NUMBER,A S-DIGIT NUMBTR IS ClIATLD IN GREELtPI WITH WHO RULES PLUS A SIXTH DIGIT. THESE NUPERS ARE ALSC REFERREC TOAS DATSAW OR USAFETAC UMSERS WHICH UNIQUELY IDENTIFY qODE IHAN IS.OD REPORTING STATIONS WORLD WIE.

NOTF: THE FIRST AND LAST HOUR GROuPS MAY OR MAY NOT CONTAIN ALL THREE HOURS. SfE HOURS %UMMARIZEO nN COVER ORSTATION HISTORY SHEET TO DETLRMIMP WHNIC4 HOURS ART INCLUDED IN TFSE TWO HOIR GROUPS.

Je

I mm i m•a

063250 ZrEAXKZUU, NTHESIANS N'51 39 5003 56 6.5 FT

STATION LOCATION ANDINSTRUMENTATION HISTORY ___

1. Zieriki.. es elsd FM~ Jun 74 Jan 76 N 51 39 E003 56 6.5 Ft N/A 0-62. Same Same Jun 77 Auq 78 Same Sam Saoe N/A 14-16

Closed mostwaekonds

3. Sm S Sep 78 Jan 60 Same Same Save N/A 0-74. Same Same rob an Har 69 Sam Sae Sam :/A 15-30

Closed most

weekendsS. Same Sam" Aprt OS Jan SS Same Sam Sam N/A 4 Syn Obs6. Sama San Jul 85 Oct 6s Smu Same Same W/A 24 Closad

moat wknds& holidays

7. sam Sma now 85 Jan 66 Sam samw :a0 :,'A 4 Syn Cl,.a. Zisrikzas, Netherlands Sm~a Feb SE Apr 67 Sam Same sm. N/A 23-30

Closed sotweekends

Lam IV 9 nK9 qtn. 01000110m. Itu now II

*/A.6/

VI*PEAC . 0.19 40i.Al A41in sc0 .su m s1Oe571.

1ppp pPP1 .1LL 0RQ~RRR 1TJTTTT1~ AALLA

p pPP pPP AAAAAA ILR RA R IT T AILLh AppI pL' A A L AA ~ p R 17 A A L

pppppppp AAAAAL L"RNPRR I I .ALAAA&AA

p pAAAAALA Rl 9 R T IAAAAApp A A IA R I LA L

PP AL L ' pP II LA IA

pp A A A RA R IT L A AA

6w

4C TEP CONDITIONS AND ATMOSPHERIC PHENOMENA SUMMARIES

.EATHB.A CONDITIONS SUMMA.!!

1. A PERCENTAGE BR.,J0iNCY OCCURRENCr %JNMARY Of VARIOUS ATMOSPHERIC PHENOMENA AND OBSTRUCTIONS TO VISION.

2. ATA BASED U-4 14OURLY OBSEkVATIONS.

A. SUMMARIZED bY THE( STANDARL, 3-HMULR 114E GROUPS BY MONTH, MONTHLY AND'ANNUALLY IALL YEARS COmBINEI.

LEFITTIONS:

THUNDERPSTORMS: ALL REPORTED TT4TNDRSICVRNS, TOTNAOLS ART) WATERSPOUTS.

RAIN ANDIOR DRI,'.Ll - ALL RLPORTED RAI NAND OR DRlIZZLE FALLING To THE GROUNDG AT NCT FREEZING.

FREEZING RAIN A!ArDD., fB IFIING DRIZ,7LE (GLAZE): ALE REPORTED FPEtZIN, RAIN OR~ FR(EZINIG DRIZZLE.

SNOW ANTJ/OR 51.11. %N'w INCLUDING, SNO.. I.LLETS A~t GRAINS ICE CRYSTALS AND PFLLETS. AND/OR SLEET 41CF PELLFTI.

H4AIL : ALL REPORETED HATE.

ALL Pk[ECIPITAIUN: THIS CATET6ORY INCLLTIS ALL ORSTAVAT IONS REPORTING PRECTPITATION. BECAUSE MORE THAN ONt TYPEOr PRECIPITATION -AY APPEAR IN A %INGLE OBSERVATION. THE SUM Or THE PtRCENIADFS I'd THE INDIVIIUAL COLUMNS MATEXCEED 'HE TP1.TCIAGt% ITN IS COLU'4N.

FOt,: ALL REPOQT[O FOL. IM FOG ANTJ CR')IANOGt.

SMOKE ANDOR~l HAil: ALE REPORtED SMOKE11 , 4,A1E AND ANY CONMINATION1 THEREOF

MEONING SNOW: ALL V(T'TRTED BLOAIN. SNIUS INCLUDING DRIFTING WHTEN PEPORTEU.

OUST AND/OR SAND: ALL TEPORYLO DUST, %A,4G, BLOwING OUST. PLOWING SAND AND ANY COM14INATION THEREOF.T04E ATMOSPHIRIC P-T%O~tNA SU"-RY 13ATS AITHI INCLUFDES ONLY THOSE REPORTS. MHEN THE PHENomFNkRISIBILITY LLSS TH.AN %10 MILE% 11"03 MEIERSI.

ALL ObSTRuCTIONS TO VISION: INCLUTIS ALL REPORTS OF OBSYRULTIONS TO MISIO% iFOu T4PU TTUSYISANtllARE BLOTAIN. ,PRAV. BfLAuSE M(TRI THAN ONE PHENOMENA PER OBSERVATION MAT OCLUR. TAHl SUM OF1MB INOIRIEPJAL COLUMNS MAY EKCEEG IRIS COLUMN.

N 1.S A VALUE IN TIli TABLE% OF ".0" INTTICATLS LESS TRAN .0-1 OCCURRENCE W14ICH IS, UUALLY ONLY Okr oLAUorICE

-ETAR STATTopt. luAIEI,*ING IN .DDN I "IS AND SYNOPTIC REPORTING STATIONS RfCE'AOEO ON THECAw. BOORS IniIUA AND IOA.SHIBTLO L04NGLI.,L (,%I THE HIGHEST OBS OF ATMOSPHERIC PHLNOWENA OBSERVED.REGIN4IRT. IN JAN 1970. VET A' STAT TuI RICONiT1) ALL OBSSLVED PHENOMENA NUT CONTINUED TO TRANSMIT ONLYvTHE HIGHEST ORDER. FOR EX1ATILL. If 1t OpSrmVATION CONTAINED RAIN. FOG, AND SMOAL1. ALL TH4REE WILLAPPIAR oft TH AWS FOR-S ICITEA. BUT ONLY TN4' VAIN das FR*MSWIYTIEU L.ONGEiTNA. THEREEDRE ONLY TRE *AINAPPEAR% IN OUB DATA A'S1 FO' HIIRLY SuP4API.-AT ION. THIS PRACTIC. EFF(CTs THE PERCENTAGE S IN THE TAPLEs.

0L

GLOBAL CLIMATOLOGY BRANCH PERCFNTAGE FREQUE:NCY OF OCCURRENCE OF ILATHEP CONDITIONSusArETAC FROM HOUaLY OBSERVATIO14SAIR WEA

THER SERVICEIPIAC

STATION NUMBER: 063250 ST AT ION NAME: ZI2R2R2L- NL PERioD or RECORD: 78,80-A?MONTH: JAN

i RAIN FR:ING SNOW t 085 S,.OKE OUST I 085HOURS I TStMS E/OR RAIN &/OR MAIL WITH FOG. IoR ELOWING E/OR h/IRS

T TOTAL

ILSTI DRIZZLE i/OR SLUT PRECIP MAE. SNOW SAND 90 0es[JRI/2LC VI SION

.31-02 1 11.6 2.8 .2 19.2 79.5 1.5 31.0 469

01-05 19. 3 .5 1.b 16.1 29.5~ 1.6 31.1 992

L6-06 I 1.8 2.S 2A.9 25.0 1.4 i6.7 513

L9-11 I1 2.1 5.9 l6.8 26.0 3.1 29.2 NR9

12-141 I 2.5 z2 6.7 .2 18.6 71.1 8.8 13.1 559

19-17 1 2 2.9 .2 4.1 25I.% 21.3 20.2 '2.5 461

19-20 1J2.4 2.1 .4 15.0 29.3 b.5 35.9 566

.e -23 1 129.9 3.b .2 £6.5 27.6 4.b 32.2 NIB8

TOTALS 1 .0 13.4 .1 3.8 .1 26.9 7b.2 4.8 31.3 3966

........................................................................................................................

0TAI1ON NUNR4ER: 063250 $I AT I Oh NAME:: ZIERIKf£E hL PERIOD OF RECORD: ?8-8?M')NTH: FED

........................................................................................................................

I RAIN FRIING SNOW % DAS S-UKE OUST % 085HOURS I ISIMS I/OR RAIN i/OR HAIL WITH FOG E/OR SLOWING. ElOR WICBST TOTAL

Itsl ORI 087/ /OR SLEET PRECIP HA7L SNOW SAN0 To 06S

IDRIZZLE VISION........................................................................................................................

ba-fl? I S.1. 2.3 20.2 35.2 221.0 91.1 SIT

01-05 1 8.1 3.1 11.2 42.0 9.? 51.1 5ib

If-O 9.9 2.6 11.9 93.9 9.91 S2.? b7D

..9-11 6 .1 .3 4.3 13.0 38.2 15.0 5312 b04

12-19 I .9 .1 1.5 1.6 29.6 21.6 57.3 645

29-1I? 1.., 2.3 9.2 29.0 13.S 57.5 609

10-20 I .9 2.0 .z 7.9 30.3 75.1 !5.4 657

?1-23 b .9 1.2 1.6 37.1 27.3 S19.5 616

fGIats. I~ ...9 2. . .. ~ 1... 28.? 53.? 419D3.................................... ........................ ....................... ...............

GLOWAL CLIMATOLOGY ERANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF WEATHEP CONDITIONSUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE NL PEPIOD OF RECORD: 78-87MONTH: MAR

...........................................................................................................................I RAIN FRZING SNOW I OBS SMOKE OUST % OBS

HOURS I TSTS LfOR RAIN E/OR HAIL WITH FO C/OR BLOWING E/OR W/CBST TOTAL

ILSTI I DRIZZLE EoOR SLEET PRECIP HAZE StloW SAND To OBS

0R0ZLE VISION

UO-02 12.u 1.4 13.1 37.4 8.4 45.8 633

03-05 12.1 1.5 13.1 38.0 R.3 4b.3 618

06-08 15.b .7 16.3 37.4 7.8 45.2 693

09-11 12.9 .1 1.3 13.9 31.6 12.6 44.1 675

12-14 I1.b .8 12.5 18.4 72.8 41.2 712

15-17 148 1.1 .3 16.0 14.5 22.7 37.2 648

18-20 14.3 4 14.8 17.4 18.6 36.0 711

21-23 14.5 .8 15.1 27.9 11.9 39.8 641

TOTALS 13.5 .0 1.0 .0 14.4 27.8 14.1 42.0 5331

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PEPIOD OF RECORD: 78-87

MONTH: APR.....................................................................................................................

I RAIN FRZING SNOW t OBS SMOKE OUST I 085HOURS I TSTMS &/OR RAIN &/OR HAIL WITH FOG E/OR BLOWING C/OR W/OBST TOTALILSTiI ORIZZLEL &/OR SLEET PRECIP HAZE SNOW SAND 10 OBS

DRIZZLE VISION........................................................................................................................

0-02 9.7 .2 .2 10.1 72.2 4.9 27.0 S77

U!-05 ,z 10.7 .9 .2 11.6 26.5 4.2 30.7 550

ob-08 1 0. 1.0 11.8 31.9 7.2 39.1 62b

09-11 10.4 .3 .2 10.9 19.1 19.4 38.6 617

12-1% 9.1 .3 9.4 9.1 7.?7 31.8 661

15-17 .2 8.5 8.5 1.0 22.8 i9.8 630

18-20 I .2 8.8 8.4 8.4 17.7 26.1 651

2I-13 ,5 10.4 .2 11.1 14,1 q.? .2 24.J 559

T UTALS 1. 9.9 .4 .1 10.3 17.3 13.6 .0 !0.9 4841

........... .. . ... . . ... ... ................ . ....................................

.dip

GLOBAL CLIMATOLOGY BRANCH PERCENTAGL FREQUENCY OF OCCURRENCE OF WEATHER CONDITIONS

uSAFCTAC FROM HOUqLY OBSERVATIONSAIR WEATHER SERvICEIMAC

STATION NUMBER: 063250 STATION NAME: ZIERIKzLC NL PERIOD OF RECORD: 79-86MONTH: MAY

I RAIN FRZING SNOW I OBS SMOKE DUST I OBS

HOURS I TSTHS L/OR RAIN &/OR HAIL WITH FOG E/OP BLOWING &/OR W/OBST TOTAL

ILS71 I ORIZZLE E/OP SLEET PRECIP HAZE SNOW SAND 10 OBS

I DRIZZLE VISION.. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . ..............e........... .o....... . . e . . . -.. . . ..° .. .. *... .. .. . .- .. .

cO-O .4 11.5 11.S 15.9 5.0 20.9 478

03-05 11.9 11.9 ?0.5 4.0 24.5 4Z9

06-08 .2 9.3 9.3 31.6 6.S 38.4 5317

09-li 12.2 12.2 IN.0 14.4 28.5 49,

12-I .7 IU.1 1.1 9.1 16.0 ;S.l 537

15-17 1.1 10.2 10.2 8.5 12.3 3.8 72

1-20 .6 9.5 .2 9.7 11.6 30.5 22.1 516

21-23 .S 10.2 10.2 9.8 5.4 15.2 441

TOTALS .4 IO.b .0 10.6 IS.2 9.3 24.4 3902

STATION NUMBER: 0632S0 STATION NAME: ZIFRIKZE NL PEPIOD OF RECORD: 77-86MONTH: JUN

I RAIN FRING SNOW % OeS SMOKE DUST I OBSHOURS TSTMS C/OR RAIN &/OR HAIL WITH FOG F/OR BLOWING E/OR /OBS TOTAL

ILSTI I DRIZZLL C/OR SLEET PRECIP HAZE SNOW SAND TO Os

I DRIZZLE VISION

CO-02 8.1 8.1 75.8 .7 26.5 433

03-05 .7 12.2 12.2 33.N 1.0 34.9 410

06-08 .2 13.4 .2 13.6 27.7 8.7 36.4 566

0"-1i .7 9.6 9.6 13.1 22.9 35.S 591

12-1N I 5 O.G 10.0 S.9 72.1 i8.0 578

15-17 .b 10.9 10.9 3.b 38.2 21.9 521

18-20 .9 1.1 .2 7.2 S.? 32.8 17.9 50

21-23 .5 8.3 8.3 13.1 6.5 19.6 939

TOALS.I .. i.... .3 . 160 . . e6 27.5 9060............. . -................. ....................... ...............

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF WEATHER CONDITIONSUSAFET AC FROM HOU4LY oBSERVATIONS

AIR WEATHER SERVICE/MAC

STATION NUMBER: 063253 STATION NAME: ZIERIKZE[ NL PEPIOU OF RECORD: 77-86

MONTH: JUL................ ;................ .. ..... ; .... .. ............... BS ........ " ..S..K............. .... °°.. '. B................

I RAIN FR7ING SNOW % ORS S-0VE DUST % DRsHOURS TSTMS LIOR RAIN L/OR HAIL WITH FOG &/OR BLOWING 1/OR WIOBST TOTALILSTI I DRIZZLE ./OP SLEET PRECIP HAZE stlOW SAND To ODs

I DRIZZLE VISION...........................................................................................................................

00-02 b2 1 7.6 24.8 4.8 29.7 409

U3-0S 7.6 7.6 30.9 3.5 34.4 486

06-08 .5 10.1 10.7 30.9 5.0 35.9 635

09-l .7 10.4 10.4 14.8 17.8 32.b 6o8

17-IN 7.7 7.7 5.4 22.8 28.2 64b

15-17 .2 0.0 6.0 3.2 20.4 23.7 587

14-20 .b 7.3 7.3 3.5 19.8 23.3 662

21-23 2.1 7.4 7.4 IS.4 9.9 25.3 513

TOTALS .0 8.1 8.1 16.1 13.0 29.1 4b3

STATION NUMBER: 063250 STATICN NAME: ZIERIKZE- NL P- RIOD OF RECORD: 77-66MONTH: AUU

I RAIN FRZING SNOW % o$ SMOKE OUST % OBS

HOURS I TSIMS L./O RAIN 1/OR HAIL WITH FOG E/OR BLOWING l/OR W/IBST TOTAL

ILST) I DRIZZLE 1/OR SLEET PRECIP HAZE SNOW SAND 10 OBS

I DRIZZLE VISION

00-02 .7 B.j 8.0 28.8 4.1 32.9 535

U3-05 1.0 8.3 A.3 3 38.5 2.4 40.9 509

06-08 .5 6.5 8.5 38.2 4.3 42.5 b49

09-1I .2 5.6 5.6 16.1 17.2 23.3 h39

12-14 .3 S. 5.9 5.6 21.9 27.5 651

15-17 .2 7.t. 1.6 2.9 73.4 6.3 615

18-20 .9 8.3 8.3 7.3 10.9 6.0 b88

21-23 .d 6.- b.2 72.8 7.8 30.1 548

TOTALS . s 7.3 1.3 20.0 12.5 3Z.S 4840

................................................................................................................................................

GLOBAL CLIMATOLOGY PRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF WEATHER CONDITIONS

USAFET AC FROM HOURLY 03SERVATIONS


STATION NUMBER: 063250 STATION NAME: ZIrRIKZET NL PERIOD OF RECORD: 77-86MONTH: SEP

I RAIN FRZING SNOW % DRS SpI0KE DUST 5 0BS

HOURS I TSTMS C/OR RAIN c/OR HAIL WITH FOG E/OR BLOWING C/OR W/oBST TOTAL

ILSTI I URIZZLL L/Op SLEET PRECIP HAZE SNOW SAND TI 06S

I DRIZZLE VISION

00-02 .2 7.5 7.5 31.4 5.3 36.8 544

03-OS .2 7.5 7.5 35.6 5.6 41.2 519

L6-OS z 11.0 11.0 T37.7 4.7 42.4 620

U9-II 10.1 10.1 22.8 12.6 35.4 596

12-141 9.6 9.0 7.1 71.1 28.2 6N8

15-17 9.b 9.6 6.5 20.4 21.0 612

18-20 .5 9.3 .2 9.4 13.9 20.5 24.4 657

21-23 1 .6 9.2 9.2 25.0 5.3 30.4 543

TOTALS 1 .2 9.2 .0 9.2 22.5 10.7 33.2 4739

STATION NUMRER: C63250 STATION NAME: ZIERIKZEE RL PERIOD OF RECORD: 77,79-86

MONTH: OCT

I RAIN FR7ING SNOW % OeS SMOKE DUST I 096

HOURS I TSTMS C/OR RAIN C/OR HAIL WITH FOG C/OR BLOWING C/OR W/OBST TOTAL

ILSTI DIZZLL C/OR SLEET PRECIP HAZE SNOW SAND TO OBS

1DRIZZLE VISION. .. . . . . . . . . . . . . . ..................... ............... .....°.........* ........... °. * . .°°.. .. .

nO-o2 .5 13.U .2 13.2 26.9 l.A 8.R 546

03-05 .2 23.2 13.2 31.2 1.1 32.3 551

06-08 .3 23.7 13.7 35.9 1.2 37.0 b0

U9-11 .2 23.1 13.2 32.1 5.9 38.0 595

12-14 .3 11.9 11.9 19.7 15.8 30.6 631

IS-17 .7 12.8 1.8 13.0 24.2 27.2 569

18-20 .8 13.3 .2 13.5 23.2 5.2 28.3 670

21-23 .5 15. 15.9 26.1 3.5 29.6 570

TOTALS. .I 21.2 .111.2 25.4 6.1 31.5 '467D

..................... . ........................... ....................... ...............

a

GLOBAL CLIMATOLOGY BRANCH PERCFNTAGE FREQUENCY OF OCCURRENCE OF WEATHLR CONDITIONS

USAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATION NAME: ZIERIKZEC NL PEDIOD OF RECORD: 77,19-Rb

MONITH: NOV

I RAIN FRJINb SNOW % OBS SMOKE DUST 0 OBS

HOURS I TSTMS C/OR RAIN &/OR HAIL WITH FOG K/OR BLOWING C/OR W/OBSI TOTAL

LSTH I DRIZZLL C/OR SLEET PRECIP HAZE SNOW SAND TO 01s

I DRIZZLE VISION.. .. .. .. .. .. .. . . . . . . . . . . . .. . . ..°. . . . . .. . . . . . . . ............°.°... .. ... ...... ,,,o

00-02 11.9 11.9 30.0 1.4 3.B 494

03-05 I3.6 .4 13. 31.0 2.0 33.0 455

06-08 14.4 .7 15.0 29.4 3.5 32.9 541

09-11 15.5 1.7 .2 lb.R 21.9 7.r £9.G 483

12-14 15.0 1.2 .4 16.0 14.8 1T.8 29.6 Sb

15-17 13.4 1.0 .2 14.2 13.8 13.6 T.4 493

18-20 1b.0 .5 16.4 71.2 5.8 27.0 556

21-23 I 14.1 .6 14.7 22.1 5.7 27.8 475

TOTALS 14.3 .B .1 14.9 23.0 6.8 Z9.8 4364

STATION NUMBER: 063250 STATION NAME: ZIERIKZEE NL PERIOD OF RLCORD: 77-86MONTH: DEC

.. . . . . .....o ' . . . . . . . . . ..°. . . . . . . . . . .. . . . . . . .... . H . ' ' o' . .° .. ... .. .. ... .. °. ... °... ..

I RAIN FRZING SNOW % 0bs 4OKE DuST % OBS

HOURS I TSTMS 6/OR RAIN C/OR HAIL WITH FOG C/OR BLOWING C/OR W/DRSI TOTAL

(LST? I DRIZZLE LJOP SLEET PRECIP HAZE SNOW SAND T0 OBS

I DRIZLL VISION. . . . . . . . . . . .... * .... .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..... ' . o . . . ° ° ' . . o. ° .. ... .. ..

00-02 I 13.8 1.3 .2 15.0 30.9 3.0 33.9 472

03-05 I.b 1.9 .7 13.4 33.7 3.1 36.8 424

O6-D I 11.6 1.S 12.3 35.2 3.1 38.3 543

09-11 I14.2 .2 2.5 .2 16.3 34.9 5.2 40.2 478

17-14 34.2 .5 2.1 16.0 29.7 10.4 40.1 576

15-17 13.2 .6 .9 14.5 1.7 a.3 4O.0 470

19-20 10.6 .2 .9 11.6 14.9 5.4 40.3 559

21-23 1 34.5 1.9 15.6 32.3 4.0 36.z 480

TOTALS I 12.9 .2 1.b .1 14.3 32.9 5.3 38.Z 1OO2

. ....... ...................................................... ................

-4mm

GLObAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF WEATHER CONlITIONS

USAFETAC FROM HOUqLY OBSERVATIONSAIR WEATHeR SERVICE/MAC

STATION NUM9ER: 063250 STATION NAME: ZIFRIKZE NL PERIOD OF RECORD: T7-87

MONTH: ALL

I RAIN FRZING SNOW % Dos SMOKE DUST % OBSHOURS TSTMS LIOR RAIN C/OR HAIL WITH FOG i/OR BLOWING C/OR W/OBST TOTALILSI) I DRIZZLE C/OP SLEET PRECIP HAZE SNOW SAND TO BS

DRIZZLE VISION

JAN ALL , . 13.4 .1 3.A .1 16.4 26.2 4.8 31.0 3966

FEB 1.6 .1 2.4 .0 9.8 35.0 18.7 53.7 4903

MAR 13.5 .0 1.0 .0 14.4 27.8 14.1 42.0 5331

APP .1 9.9 .4 .1 10.3 17.3 13.6 .0 30.9 4841

MAY .4 1O.b .0 1J.6 15.2 9.3 24.4 3902

JUN .5 10. .1 10.0 16.0 11.6 7.5 4060

JUL .6 8.1 8.1 16.1 13.0 29.1 4638

Aub 5. 7.3 7.3 20.0 12.5 32.5 484U

SEP .2 9.2 .0 9.2 22.5 10.7 33.2 4739

OCT .4 13.2 .1 13.2 25.4 6.1 31.5 4670

NOV 14.3 .8 .1 14.9 23.0 b.8 29.8 4064

DEC 12.9 .2 1.6 .1 14.3 32.9 5.3 18.2 4002

TOTALS .2 10.8 .0 .8 .1 II.S 23.1 10.6 .0 33.7 53956

._I .

p~pppppp AAAAAA RRRRPR TTTTTTTTTT AAbRPpppPPPpp AAAAAAA A R 5?RRRRRR TiJITTITT PBSBPPPPBBPP PP A~ AA RRT RR TI P S pPP PP 1.A AA RP pp? TT PA BBPPPpppppp AA AA RPI RR TT BP 88~PPPPPPPp AAAAAAAAAA R )R:?RRRRp TI 68abssBPsPP RRRRAAAAAAAAA RI Q P ITT PBB BBRPP t.~ A A RP P R 7? T P BBPP A A AA R PP TTs PBBFBPP A A AA RA R R T T RPTBRBB

AE SUPPLE ME MYAL SEC lION (S'UMMARY OF Da AOYST71 I FOR THE SL SUMWAIES.

pppppALALtA A RRRRRRRR CC~cccPPPPPPPPp AALIA RQIRRRRRR TTTVIYVT1 CCCCPp PP AL A AA RLTCCC CCRP PP RA TA TA A CC cPppppp 40 AtL RrR RR 71 C

pppppppp AAAAA R 4RRRRR T? TccPP AAA LLAA R q R 11 CPP A A AL A p A ORT1 Cc cc

pAA LA R R 1CCCECCCPLA AX RR AR 11 TCCCCcc

IJIVARTATL PERCLNTALE rR[ gUt.CT 7ABULATION' Of SURFACE %INDS

nATA OFHIAIID FR04 HOUPLY UATA.

PNESrNTE) ART 1.4 PEwcrNIAGE FREOUINCV OF WIND UIRICT ION TO 16 COMP~ASS POIfit , (AL- AND VARIABLEVERSUS ..LND SPFItf IN ooILIS IN IkCP MINTS OfF EAUFQPT CLA-STFICATIONS.

PEO'CFNTA5,ES ARE o.iomN ny BOTH otRECvtoNs AND sptED, AND tN ADDITION THE PLAN ITNV '.PLED IN GIvtuIFOR EACH4 OIRFCTIch.

DATA PrL S!NTEO by TH jA T1AFAITAR 3-HOUR 1114k GROUPS PT MONTH * MONTHLY AND A4N1IALL I ALL YEARS C'TMTIKED I..

A SEP'ARATE ANNUAL TARLE PRESENTS TOE S.AM- BIVARIATI DISTRIBUTION% WITH TPOSIT crIt INC,/VISIBTLITYLIMITATIONS: WHFN VISIt ILITIS EQUAL TO 36I GQLATfR THAN It.Z MILLS, THE ctLINGS ART 2:10 TO 1140n FELT AND/OR WHENTHE CETLING IS LQUAL TO' OR URLATER THAN 2030 FEET. THE VISIBILITIES ARL 112 IHAOJGH 2 1/2 MILES.

A PtPLINTAGE VAEUL Of -. 0- IN THESE TAPLES INDICATES ONE OR MORE OCCURRLNC.PS AsMOuNTING To 11.55 THAN..CS

GLObAL CLIMATOLOGY RRA1CH PLRCFNIAG[ FPtQU:.6CY OF OCCURRINCL OF SURFACE WIN LulkLTION VERSUS wINU SPFqU


AIR I[EAYHER !ERVICE/MAC

SIIION NUMRLR: U632 STAY IOf. NAME : ZIIRI6[( ML P91E-1 OF RECOPO: el-$?"DrtN: JAN HOURSCLSTI: 0OC'-OZG.

I WINO SPEED IN KNOTS

DIRECTION I 1-3 9-6 7-10 lI-lb 17-21 22-2 2.-3. 3%-%r, .01-A? AS-SI 4r S6 TOIL MEAN

IO[[[REESI % 1 INo........................................................................................................... .. ;......;. ;......N .6 . 11 .. 9 7.9

NNE .2 .2 , A . 1.1 9.6

All .4 1 .Y I 2. 3 .' 1. I.

INE .6 1.? 1. . .6 7. 1 ilA

L .9 2.t 2.9 2.? 1.. 9.0

ISC I . *SE .9 .2 .2 1). .0W

SF .? 1.. . b .2 . 7.

SSE .6 ., .7 .6 *A .' .. .1.2

$Sl I .v .2. 1,5 . 7.1 A.2

SSW .9 1.9 3.0 .5 2.7 .A II.Q

II.

.5 I .2 .' 23 2.Z 2.5 .A .6 6a.. 1,r

WSW .4 .9 1. l.A I. * ? .2 9.1, 19.0

I .6 .. .A '.. 2.6 1.3 . . t. 27.l

66* I . .6 7.A 1.3 7.7 .7 1.2 ~I .2N I . 2.7 1. 2.2 .A 3.9 A..

NNW .A .6 .9 . 1. .4 I.. 9.0

VARIABLE I .& 6 .

TOTALS I 6.2 29.. 2S.9 2P.9 13.3 q. 3.7 1.5 100.0 12.7

lOTIA NuRIR OF OPSEIVAi3ls: AR!

.ek_

GLOHAL CLIMATOLOGY BRANCH PERCENTAGE FREQUrNCY Of OCCURRENCE OF SURFACE WIND DIRICIION VERSUS W140 SPEEDUSAFEJAC FRO4 HOURLY OBSERVATION'AIR WEATHER SERVICLEMAC

STATION NUMBLPI 063250 STATION NAME: ZILRIKZE' NL PERI10 OF RECORO: AI-6S,StMONTH: JAi HOURSILSTI: OOC-SE0

I iINO SPEED IN KNOTS

UJRECTIUN I 3-3 4-6 1?-in 1-16 17-21 22-7T 28-33 34-O 4I-4? 4R-55 GE S6 TOTAL MEAN

....... : . .............. ...... ..... 0..... ; ...... ..................................................... i,.............

N I .5 1~ .9 1.6 .2 4.6 *

uINE .9 .1 .. 2.1 7.2

Nt .5 1. 1.6 .? 9. 1 .

ENE I.1 3. • 2."3 2.1| .T .3 9.2 I 1.

f I 3.9 1.3 3.9 .A .Si5.- K.T

SE f.9 . .2 ?. t 7.3

556 - .7 •" 2.3 1.; .7 .2 T.T 11.1

Sw .1 3.6 3.0 .9 Z.1 .S .2 13.9 14.7

WSA .5 1 . .9 .b .7 .s .9 y 8.9 15. 1

3 1.1 I.A '.% 2.1 2.3 1.6 .2 . iT.4

h.7 7. 2. 1o 2.5 .,.9 I

9M I .,, •.5 .5 . 1.3 17.1

RAiABiEf I 2.3 2,' l.ll

I?

LALP I/j/1111/ili pmII If II/If IfII I I I II/IilI

OIAL% 1O.1 11, . 2O.C 2.3 10.1 8.1 3.2 3.9 0D .f 13.0

I11. NluMBER OF OMSIS ViliO9S: 91$9

LO:,AL CLIMAIOLO(.V 146AI' P116CENT6]. FQ&OtmjjiCY 0F OCCURfAlft Of SURFACE wi14, 0l61(IIO14 wh9sUS wI'Eo lpftUSAFtI Ac C RO4 04016LV OPSIQVA'lflN'AIR WINERd stRvlttfI4AC

STATION NLJMPI.P C6325-,' 1.f1 II ObN AME . Ilf RIK '4L Pf 'l'nO ('I QtCORJ: 14,43-S?MININ: JAN .4UQS11511: )J3E

D NE II0 I *6 .4 1.t I.1 6 1 .? 2 1*6P1 ?1 5 1 -u %1-6 ss S 6.7A -1 A

14147 I .6 I..' .0 22 6.

hr .6 1.6 1.6 .2.b. .

I6 Ir .6 7. a- ..2 1 .6.7 I '

7 I 1.6 .6 6 .I..1 a. .6

'6 ~ . .2 16 .1.6 1 . 6 26.

K: U 24. . 6 .5 2.6 .2~ l.

10 16A I 94 11 .6 2. 16.9 9.6 1.6 .6n' .2 10. 1.

TOTAL. 1411661 0f tPSISViTI*'46: .j

GLUR. CLIHAIOL06Y FRANuC" PERCENTIAGE FR(OtjiCi OF OCCURRVNCE Of1 SUQFACr WIND bIREClIOE YrRiSU WIND SP((QUSAIC SAC IRDI HOURLY OBSfRRAT3ONSAIR WEATHEIR SLRV3CE/6A(.

STATION VURiLQ: C637ID 51 0% "A5'Of 11FRI1l Pot PEPJOD oF RECORD: ?PS-,7MONTH: JAN HOURSILSTI 39X~a-13ct

DIRE&CTIbON 3- q - 1-10 11-16 11-21 22-? 1 28- 31 34-%0 %43-4 7 46-55 bt S6 TOTAL ME(AN

lDE (.P'f5 I s I6Ib,!)w

6t61 1 .% 5. 6.6

Nf Ibz3" 2. 2. 0.

Ed .. I. .6 .9 .. 1. .

I5 I I.- I. . % 3.41 .2 4.f. 7

I~~. 3.7 .7 1. . 2 3 .

Ih r6 1. 3.9 1..0 .66. 1i.3

old .4 .t . . .4 .6 74 3.

(It" Ijitjiotj o/ ot I fIloti,1to ito //t1tt Allfool j/I/ to jjj/ it jjnjo/j ItjItf,/,,ippoj to /1 011 ///1 1

TO'AI I at.I 34.' .3 24 30.4 6.4 .4 1.2 13Dl.3 31 .

I 1 At Nu"S3t vof O%%SMYAI1344: 461

GLOBAL CLIMATOLOGY BRANCH PEQCENTAGE FREGUONCY OF OCCURRENCE uF SURFACE 140 DIRECTION VERSUS WIND SPEED

USAFLIAC FRO4 HOURLY OBSERVATIONS

AIR WrATHER SERV1CEIMAC

STATION NUMBEQ: 063259 STAT ION NAME: ZIERIKZE NL PEPOU OF RECORD: 78,83-87

MONTH: JA% HOURSILSrI: 12U0-600

I WIND SPEED IN KNOTS

DIRECTION I 1-3 1-b ?-10 11-lb 17-21 22-? 7 28-33 36-60 41-47 68-5S 6E 56 TOTAL MEAN

IO bRC| I WIND............................................ ........... .........,..............,...

"'"N I .6 .6 .9 1.1 .6"' 3.3 I0.3

NI.E .2 3.3 3.6 .9 3.6 8.6

: I .7 ,' 1.1 .2 2.0 7.8

NI .4 .2 1.3 13. .? 1.3 5.2 l6,P

f .2 2.r 1.8 2.7 .9 7.6 10.3

ISE I .2 4 .6 . 2 .2 1.6 9.8

SF I "2 3.3 .5 .5 .5 .9 10.

'ISE .2 ?.? .5 1.3 6.2 6.0

1-3.3 2.6 2.5 1.8 .? 8.1 e.0

SSW .5 .6 4.3 ?.9 1.6 1.6 .2 12.3 12.6

Sd .6 1.1 3.6 2.2 .2 .9 .1 9.0 12.7

WSW 1.1 .S 2.5 3.6 2.5 1.6 3.b .6 ., 16.! 1b.5

W: .? , 1.6 3.1 Z.5 2.03 .S 3.1 1 .6 17. ?

MBw .2 3.3 .6 .5 1.8 1. 5.6 15.8

NV .2 .2 1.6 .2 1.1 .6 4.0 li.9

N:W 1 1.1 3.1 .6 .9 .2 3.6 16.3

vIAIASLI I 1.3 3.5 ""2.1

CALM 0,111jj 1jii//i"/j//j /I II/Ill

IOIALS | 6.9 3.7 26.2 21.3 3.2 11.6 $.6 3.6 .2 100.0 J1.0

TOTAL NURIBOF f OSAVATONS: 5S3

fik

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUCNCY Of OCCURRENCE Of SURFACE WIND DIPECTLCN VERSUS WIND SPEED

USAFETAC FRO4 HOURLY OBSERVATIONS

AIR WEAIHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE: NL PEP10D Of RECORD: 78,80-87MONTH: JAI, HOURsILSrI: 1500-1700

I WIND SPEED IN ANOTSDIRECTION I 1-3 8-6 7-10 Il-lb 17-21 22-27 28-33 34-40 41-47 46-55 GE 56 TOTAL MEAN

IOEGRrESI I S WIND....... : ............. ........ ........ ;................;.......................... ............ i.................a.....i . .

N I .2 .8 . .9 .2 2.8 3.

RNE .8 1.1 .7 1.5 .7 8.8 10.2

NE .7 1.1 .7 .2 .2 7.9 6.S

INE .7 .Y 2.0 2.2 .7 1.1 6.p 12.7

E .7 1.1 1.5 2.2 .9 6.4 9.9

ISE 1.1 .2 .2 I. 7.3

SE .7 .7 .9 .7 2.4 8.2

SSE .7 2.Z .2 .9 4.0 6.9

S .7 3.! .9 2.Z .7 7.c 9. 3

SSW .9 2.n 2.9 1.8 .9 .* .7 9.s 11.6

SW .2 .9 3.1 1.8 .2 1.3 .2 .7 7.9 13.4

WSW .2 7.6 2.9 .6 Z.8 1.8 .7 .2 15.4 14.]

W .8 .7 .9 2.8 3.5 2.3 1.S .2 . 12.1 J9.2

.NV q. .1 .9 2.9 2.3 7.3 17.4

NW -. -7 1.1 .7 1.3 8.6 18.8

NN .8 .8 1.3 .9 .2 .8 3.7 11.5

VARIABLE I 1.3 1. 1.0

TOTALS I 7.9 19.1 20.8 21.7 13.6 10.s 3.5 .7 .4 100.0 12.7

TOTAL NUMMER OF OBSERVATIONS: 86S

GLOBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED

USAFETAC FRO4 HOURLY OBSERVAT1ONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063253 STATION MAME: ZIERTKZE- NL PERID OF RECORD: TeB.u-BTMONTH: JAN HOURSILSfI: IR00-2300

WIND SPEED IN KNOTS

DIRECTION 3 1-3 4-6 7-10 11-16 17-21 22-?7 28-33 34-4D 41-N7 48-55 GE 56 TOTAL MEAN

fDEGREES! I I WIND

N .4 I.6 .5 .5 .7 4.8 7.4

NNE .5 .6 .2 1.4 .4 3.0 9.9

NE .9 .9 1.4 .7 .7 .2 4.% 9.2

ENE .5 .2 2.0 1.1 1.1 .T 5.5 13.0

E 11 .7 1.6 1.8 .7 5.9 9.1

TSE .4 1.6 .9 .4 3.2 6.8

SE .2 .9 1.1 .7 2.9 9.4

SSE . 3.4 .4 1.4 3.6 8.9

S .9 2.5 3.2 2.8 .7 .2 10.7 9.3

SSW .9 .9 2.8 2.1 2.0 .9 ,7 .2 10.s 14.1

SW .2 1-6 1.8 .9 1.4 .4 .9 .2 7.3 14.3

WSW. .9 1.6 3.4 2.3 1.2 .9 .2 10.7 16.3

W .9 .9 1.8 3.4 2.8 3.S 2.0 .4 .4 1%.0 17.6

WNW .5 .7 2.1 1.4 1.6 .7 .2 7. 13.0

NW .5 .2 .4 .2 .2 .2 1.6 12.6

NNW .7 * .7 .9 .2 3. 9.,4

...................................o , -- .........,.. .... . . . .. . . . . .. . . ......o,. 1.2VARIABLE I 1.212 1.

CAL" .5 III

TOTALS 1 31.4 16.0 22.0 23.3 14.6 6.2 4.8 .9 .4 100.0 12.2

TOTAL NUMBLR OF OBSERVATIONS: 563

Jo

GLOPAL CLIMATOLOGY BRANCH PERCENTAGE FREQUCNCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SPEED



STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 78,1-87MONTH: jAN HOURS(LS5).I 2100-2300


DIRLCTION I 1-3 4-b 7-10 11-lb 17-21 22-?7 28-33 34-40 41-41 66-5S GE 5b TCTAL MEANIDEGR:ES) I I WINO

N 1.1 1.3 .6 .b 3.4 5.8

NNE . .2 .6 .# .6 .2 2.1 16.3

NE .2 .p .8 1.1 .6 .4 4.4 11.6

ENE .4 1.7 1.1 1.3 1.1 .6 5.7 11.8

E 3.5 1.3 1.5 ?.1 .6 7.0 9.1

ESE .6 1.9 1.3 .6 4.2 6.3

SE .4 1.9 .6 .6 3.6 6.5

SSE .2 .6 .8 1.9 .2 4.0 10.6

S .8 2.S 1.7 1.5 .6 7.0 7.9

SSW .6 2.3 1.5 2.5 .8 .4 .2 8.5 11.0

Sw .6 3.1 1.5 2.8 1.5 .8 S.1 13.6

USW .2 A 1.5 3.2 .8 .6 2.5 .4 10.2 18.2

W .6 1.7 1.9 4.0 2.1 2.1 1.5 1.1 15.0 16.8

WNW .2 . .8 2.5 1.1 .2 .6 S.7 14.6

NW .2 1.3 3.3 .6 .2 6.2 10.8

NkW °. 1.9 1.9 .8 .2 .4 5.5 9.?

. ° ° ° . ° .°. ° ° ° ° ° . . ° ° °VARIABLE I 6.6 1.3

TOTALS I 8.6 21.6 18.6 27.5 10.6 5.3 5.9 1.5 300.0 12.1

TOTAL NUMBER OF OBSERVATIONS: 672

1.L.

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS WIND SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICEiMAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEC NL PERIOD OF RECORD: 79,8O-R7MONTH: JAN HOURSILSTI: ALL

...........................................................................................................................

WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 2?7 28-33 34-40 41-47 48-55 GE 56 TOTAL MLANIOEGRrES) I 1 bIND

N . . .7 .9 1.1 1.0 .3 .0 1 4.0 .A

NNE .4 .9 .7 .7 .2 .1 .0 2.9 9.0

NE .4 , 1.0 .7 .4 3 3.,7 10.0

ENE .6 .9 1.5 1.8 .9 .R 6.5 12.1

E .9 1 * 3 1.4 2. 1 .4 .0 6.1 9.1

[SE ,3 . •.2 .7 .3 .3 2.9 7.8

SE .2 1 3 .5 .7 .2 .2 3.1 9.2

SSE .4 1.4 .6 1.1 .2 .3 3.6 8.9

S .9 2.7 2.4 1.9 .3 .2 8. 8.5

SSW .8 1.4 2.7 2.8 1.2 .q .3 .1 .0 10.2 12.3

SW .4 1.3 2.6 2.3 1.3 .8 .5 .1 9.3 13.3

WSW .4 .9 1.8 3.3 I. 1.1 1.1 .4 .0 10.7 16.2

W .4 1.1 1.4 3.9 2.6 2.3 1.1 ,S .1 13.2 i.I

WNW .4 . 1 1.2 1.7 1.8 1.3 .1 7.2 IS.0

NW .4 .7 .6 .9 .3 .6 .1 3.5 12.6

rNNW .4 .7 1.0 .8 .2 .3 .1 3.4 10.8

VARIABLE ... .1 1 1.4 ..

TOTALS I 8.8 18.2 21.3, 25.9 12.5 V.4 3.4 1.1 .2 100.0 12.2

TOTAL NUMBER OF OFSERVATIONS: 3938

-A

GLOSAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEUUSAFETAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063259 STATION NAME: ZIERIKZE" NL PERIOD OF RECORO: 80-87MONTH: FEB HOURSILSTI: 0000-0200

I WIND SPEED IN KNOTSUIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TOTAL MEAN

IDE GR- E S I % WIND

N I . .S 1.6 5.7

NNE .5 2. 3 .9 .9 4.5 6.9

NE .9 2.4 3.3 3.0 .7 10.2 9.1

ENE .7 1.9 4.2 4.7 2.1 .2 13.2 11,I

L I.9 2.6 2.8 6.9 1.8 .5 16.1 10.7

ESE ,3 •3 1 3.5 1.2 .2 8.3 7.9

SE .3 2 1.9 .3 5.2 6.5

1SE I I"T 1.2 2.3 7.0

S .2 4.5 3.5 .7 8.9 7.0

SSW .2 3 .r 1.2 .2 .5 5.0 9.O

SW .2 1.8 I.n .7 .3 .2 5.r 11.9

WSW .5 1.7 t.8 2.1 .9 .3 .2 7.1 12.2

I .7 3 1.2 1.6 .5 .5 .3 5.2 12.7

WNW 5 1.0 .3 .3 .3 2.6 12.2

NW .2 • .7 .2 .2 .2 1.9 10.5

NNW .2 .T .3 .9 S.4

CALTMABL i . . 1.2 1.1

TOTALS I 0. 29.1 29.C 22.6 7.5 2.6 .5 ,1 .2 100.0 9.8

TOTAL NUMMEP OF OBSERVATIONS: 576

GLObAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONS

AIR wEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 7T-87MONTH' FEB HOURSILSTI: 03JO-OSO0

......................................................................K O;S.....................................................

WIND SPEED IN KNOTSDIRECTION I 1-3 N-b 7-10 11-16 17-21 22-77 28-33 3q-No 41-7 48-55 GE 56 TOTAL MEAN

IDEGR ES ) I W ND

N .3 .2 .3 .9 . 6

NNE 1.0 2.6 1.9 .3 5.9 6.3

NE .9 1.7 2.9 2.8 .3 8.i 9.1

ENE .7 3.3 5.4 6.1 1.9 17.3 10.3

E 1.6 2.6 3.5 3.6 1.7 13.0 9.7

FSF .9 4. 3 2.2 1.0 8.5 6.9

SE .2 1.7 1.0 .2 3.1 6.7

SSC .7 1.4 .9 .3 3.3 6.2

S .5 2.6 2.2 .3 5.7 b.N

SSW .3 2.4 2.1 .5 .5 .2 6.1 8.7

SW .7 1.7 2.1 1.2 1.4 .2 7.3 10.S

WSW .2 . 2.1 1.6 .5 .5 •3 .2 6.2 1 4.0

:w .5 •7 1.0 2.6 .5 o2 .2 5.7 11.5

WNW .1 • 5 .S 1.2 .7 .2 3.6 13.0

NW .2 .3 .2 .3 .2 1.2 9.9

NNW .3 .s .5 .2 1.6 6.3

VARIABLE 1.2 1.2 1.

TOTALS 10.4 27.9 28.9 22.1 6.6 2.1 .? 3 . 100.0 9.1


J.L

(,LO[,AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINO SPEEDUSAFET AC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICE/FIAC

STATION NUMPER: 063250 STATION NAME: ZIERIAZE7 NI. PERIOD OF RECORD: TB-RiMONTH- FEB HOLJRSILSII: 060nI-0600

........................................................................................................................................I WINO SPEED IN KNOTS

DIRECTION I 1-3 N-6 7-10 11-16 IT-Zi 22-2 ? 28-33 34-4O 41-4T 46-55 GE 56 TOTAL MEAN(E rE I % hIND

N I 1.3 1.1 .3 .3 3.1 5.1

NNE I1.8 2.4 1.3 5s , 6 .3

NE I .5 2. 7 3.4 1.1 .3 8.1 8.1

ENE I .R 2.! 3.9 6.8 1.0 .z 1N.8 1I.7

E I R . 4.0 N.7 1.3 .6 14.4 10.5

ESE I .6 2. 1 3.q .8 6.9 7 .4

SE I1.6 1.5 3.1 6.4

SSE I .6 1.6 1.8 4.0 6.0

S I .6 1.9 2.4 .6 .5 6.1 3.8

SSW I A. . 2.7 .8 .2 6.6 7. 3

SW I .6 1.0 2.1 1.0 .2 .5 S. 3 9.9

WSW -.3 .q 2.N 2. 1 .5 .8 .6 S. 81 1 4.5

I .6 1~ 1 .1 1. 3 .8 .2 .2 5.6 10.4

WNW I .6 .3 1.1 1. 1 .2 .3 S5 N.2 12.6

NW I .2 .2 .3 .6 13.

NNW I .2 S . A8 15.0

VARIABLE I 1.9 1.9 1.2

TOTALS I 11.0 23.7 32.6 21.9 N.T 3.4 1.5 .5100.0 9.3


F

bLOkHL CLIMAIOLOOV PRANCH PERCENTAG( FPLQU[NCY OF OLCURRENC( OF SURFACF dIJ UIR[ClION VIRSUS WINO SPCEU

USAFFTAC FROG HOUNLV O0$9SEVAIJUS

AIR IWATHER SERVICE/MAC

STA71ON NUMBER: 063253 STAT(ION NAME: ZIFRTK2E- NL PERIOD Of RLCORP: l-81'GONT.: FEB HOURSIL',Il: J930'-IirJ

I wINo SPEED IN KNOTS

DIRECTION I i-i I - 1-20 11-Ib 17-21 22-! 7 20-33 SNo-0 41-N1 N4p-s5 t[ 56 1EIAL MtAN

IODEGRESI W I1C.......e.... .. . .. . . .. . .. ..........*.. ,o . .. . ,................o ....... ... ° .. ... ......... °. .. ......... .... ..... .. .......

N I .2 ." 1.2 .8 .3 ".- .

TINE .3 2 1.5 .3 1* ,

Nr .7 1 . 3.1 3. 3 1.0 .3 iz ~.!f NE .7 J. 2.1 S.6 1.2 s5(. 1".4

t s .5 21 1. 3 . 2.5 1.1 6.

USE .7 2. r 3.0 1.0 .2 9.' .2

SSE 1.I 1. I.S

S .7 . 2.5 I.2 2. 6.1 .. f

SSW ~ R 1. 1.8 1.0 .5 A. .s

SW .5 3 3.0 1.0 .3 6.6 A. I

WSW .7 .8 .6 1 .A. . .9

i .5 .8 1.0 1.8 .7 .8 .2 .2 5. , 5.6

WNW .3 .3 .7 1.0 .8 .3 .2 T.P, iT.'

Nw .3 .1 .2 .3 .2 .2 I.' 9.5

NN, I .o °o°

CIRIARL I 2.3 |.8 0.8

TOTALS I 9,2 20.6 12.3 23.8 1.6 5.8 .1 .S I00.0 10.1

TOTAL NUMBR( OF OBSERVATIONS: 6(6

.- 1,

"PL~AfL~1AAC ptociTAIi~ FPC.JU"icv or OC2Ruu.RENC,. of uqf&Ct .1%, uI03C'c, , VIUSUS .1%0 spi FL2JShFE1AC fQ004 HOURLY' Op 449*2lO'.AIR FIATHER !.ERVICEIMAC

S,103202 4uppia: DfE.12V1 A I (A %&"( a1 91%2 it -itX D Q(P 1C jej r 7- 4

S493: If' 4OUR,2 1,!2 ., I I

.[N.o wPt 9 1) 903AlotU IC I21 I UN 7- 1-3If;I. 2 - Ib 1 7-23 22-' 14-3 J-43 .93 f --~' S .t, I2AL 43 A%lofl.R-,'FII 1 *I'%3

k. .7 ., 32 1.

9* 3 3 .b , , I ..

.9

Iaw 4"t 3. 2..9 .

.99AL It. t" A 9. 0 .9 7v. C .

I 999 PON L OF OR. a' 0 A fA 134s.91

I 6m

IA .~L CLIPSI'L0(. 7I&iP.i pt a I t I 6t f P ' QLv( I of DO((Uno!'Af ofI SUQF8 A'( oJ ,,Ili (1 ~ u 0%. .tr"Sa&Fj I Ac f 404 NO0UN L? T O, 4 I '

IAtIVN EU-Pt9 P .S '%J I 'T A I I. CS.9 AP ~ '.' 4L J . R

.11-lug p1( t d I II

Ulptc 110d I 1 -~ 1-10 1lIt 1 1Z -. I I4 II 14-Ed I1~ 9(I L". - ( '. I

1

. d . .7 .I E . . . .....................

I .7 I. 2.0 ..

I s . I'

(At- .......... .) ........ ..........

10TAL, 0 .7 . .

w....... .... ... . ' . . .. . . . . . . . . . . . .. . . . . . . .I.. . .. . . . . . . . . . . . . .. . . . . . . .

Inf*1 .uwpfR ofOF S DllI 14*13%%~ 6j?

(LI Al Ti!AIotLly HMl8 tO4c.Am f~t l, %C1 Of OECUPE SCi Of %,UQFAEI AI% .. lt C I ClkL OfPS% OV%' 1tA I A C 004 NO URL V JO f V AV I

.qv. 1 .. - .

.......... ........ .... ..... .. ....

L I I - 111

Ir I. At

.. .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. . .

Il I it WO 1.. i~ O A113 ' ,

I *. SF I.V6w

c.jS*19l (| 5Iji ,i" I ',9J A. aO.

.9*999%h %uMIPtP: ,l.'" .9091 'ri. 4*09ml - ' t~t '9 9*. % I. blZJiW I. 90l,4 4'•

tI A I I % jIa *A .I9 9 I<

It je

4. 9 .. ' '.

'.,!9,9 . .- a..

. . . . .. . ... . . .. . . . .

.9 , .' . . 9.9 ' '.

I

. . . .. . . .. . ..... .... . . . . . .

9lll U ~ L .P ,l~ l~ i li . 2.'. I.5 I 11 0 1 1. 9.I* l . j,. 1

km . . i. . . .. . . . . . . . . . . . . . . . . . 9 . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .

(89 T a / Uf/,,/a f 0 f 01t 1 k/ttt v/f/ Af / t i / / / / i , i/ , /~ j / j j j ~ I IN!CA . .T .. . . .. .'. !'' *

,(T_ u"9 j9 Q%,459Jk:_.4

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* ll n% I . Af-.!, -t-..

... ...; ... ...... ...... : .... .. .... .......... ... .... ..... ... ... ... ... .......... ..... ....... ... ... ........ ...... ... .. :... ..

if 1. I. .I .I .I - . -

* .3| .3 3. .ft ii11

............... . ........ . ....... . . .. ....... . .*...*.*.* ....... . ............... ............... . ...........

6*SAs vi&.optvn mt o, . 4o

L1( 5i~ti~t iiii i..tittiii fhiit/itllti#lt//t~tt/t, i ~tIl,/t/#t/// 5 I 6m

61ai0 L I"alS ntObv Ph.A..Lm PiRCthA t F 75tJU %C AC Of O(tU5 h¢l Uf SURIDCL w 14, uIIf(ION VF SUS .IND SPiII)

U%h 1& IA aFRoq HOUIL7 ObSFViAI C"'AI I Sll to1 Q 1 a VICLI'hl

.1%1.: MAQ 04U.IS4LSTI : JnUI., -OZC .,

,I1 I l $ . I *-t 1 1 I- I - 1 7-2 21-? 7 2'- S3 14-10 4 1 -47 1 8- 6( 6b TC I t " A%

IOF 6 .I % I 1I i wI %L

... ... ... oo, ,o ~ o . ......... ............... o................o. ,.. o. . .. .o. . .. .........-..... ......... .. . . . . .o .

or .S 2., I, .I 1 r.n

.7 1 |. 7. * 7.I .. .. 4., 7.i

. .' . .. . . .. ..

I l." '+ I * 6l.6 7.6

I(* I t %1 .I f. 7 Oo%1

S I . ,5.6 1.- + I.1 .Y 17.7,OI

- I , 7. '. 6 .1I .8 .7. . 7 ., 12.*I

I2.6

* .. : .' 2.6l 1., .' .6 l. ' 5I.7 2.(

56 I" .1 . . 1.7+ .. .. .. 6.+ 6+.l

Nwu+ I • I . . I. .+2 ,.2 . .I

.. .•. . . . . .,. .. . . . . o . . . . o . 2 .o . .. . . . , o o .o o,. .. o o o .o. 2.7, .5 . , ,

wI aa lu I l.. ".. . ." . . l.t6 " .l

,li ' ,l I 1, 2''. * |lo.l *,'o 6. 1 2?.I j.7 .l | I0 .f 6.6 0

....L N SS - 0... .. o ,, ...... °2 ' .. . 61 . ..7'o. o,. o ,. oo ~ oo ,o o, , o .. . . .. , , . . ,o 0 .. ,o . , . , . . . . ,

a -li.IIII* F Ol ll ll q*: t t

6t 0,4aL CLIMATOLOGY7 BRANCH PEqLENJvQE FPE u. NCY Of OCCuRR NrE Of SURFACE WIND LII6EETION VERSUS WID19 SPEEDUSArI~ a AC FRO4 HOURLY OBSIRVA3 ION'AIR WATH(FK NERVICEt8Ac

STATION 14UMBR ; U63,0 SI A II ON %AM[ 2Ik8UNL PEUIIL, Of FEEOPD: S0-87MnNTH: MIA HOURS(LST): 0300-05C3

I WIND SPEED IN KNOTSDIALETION I I - 1 8-6 1-10 Ib 17-21 22-? 7 28-33 34-46G 14 8-47 48-95 GE 'b IEIAL MEAN

fNkf I I . I. 1. .3 .2 .2 8.(, 9.0

N9 I .2 . 3. 3 .? .2 .3 .9 9.1

t~~ 41 1i IP .8 .7 .9 38. .

I . . 31 13 . 6.0 7. 3

(1 I . . 2 . 2.9 6.9

SE 9 . 2.1 .1 .9 3.9 9.0

s5 Is .8 f. 2.8 175. 6. 7

S I .i .1 1.8 1 .5 .7 B. 7.9

SSd I 9 28 3.6 2.8 .9 9.8 9.0

Sw I 7 4. .7 2.8F 1 .9 .3 .2 12.9 10.2

WSW I . .5 3.6 3. 1 . 9 .5 S 0.6 1.8

K .6 1.'1 2.3 2.4 S.9 .9 . 9.6 113.2

AN 3 I. 8 2.0 .. .7 A .9

N y . .7 1 .3 7.P 9.S

%A8W I .8 .3 x .8 .2 2.6 16.4

VAL I .7 1.6/

TOTAL% I i7 2 . I SI.? 2 1.5 9.9 2. 3 2. 3 .7100.0 8.4

TOTAL 8tURPESK Or UPSF RVAID: 604S b1

rAN, .

LOaAL CLIMATOLOGY BRANCH PERCENTAGE FREOU7NCY OF OCCURRENCE UF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIFVIK?E- NL PERIOD or RECORD: 7V-87MONTH: MAR HOURSILSTI: 0600-O0

..................................................................................................................... .......................I WIND SPEED IN KNOTS

DIRECTION I I-3 4-6 7-10 l1-lb 17-21 22-?7 28-33 34-4D 9-17 98-55 GE 56 TOTAL MEANIDEGREESI I % WIND

...... ...............;........;........;................;...... . ............................................. ... .... ... ;......

N .1 .9 1.0 .9 .3 .1 2.9 1J.0

,iNE .4 .4 1.4 .6 .3 3.2 9.5

NE .9 .7 1.6 .9 .1 4.2 7.6

ENE I.6 1. 1.7 1.0 .7 .1 7.1 P.1

E .9 1.7 .9 1.7 .9 5.7 A.7

rSE .6 .9 1.7 .9 4.1 7.5

SL .T . 1.9 .4 .3 .9 3.R 9.8

SSE 1.0 2.9 1.6 .1 .1 9. 6.3

S .7 2.5 1.9 2.3 .3 .1 8.0 9.0

SSW 1.0 2. 3.6 9 .3 .4 .3 12.Z 9.6

SW 1,2 3 . 3.9 3.5 1.3 .1 1 13.3 9.6

WSW .3 1.7 3.2 3.3 1.3 .6 .6 .1 II.? 13.1

w .6 1 . 2.5 3.5 1.2 .6 .3 .3 9.9 13.n

WNW I I . C 1.3 1.3 3.5 8.5

NW .9 ,3 . 1.4 e.2

S.NW .6 .9 .9 .6 .1 . 2.6 10.7

............ " . ........ ;........................................................................................7........5......

TOTALS I 12.0 22, 26.6 25..' 7.1 3. 1.0 .9 300.0 9.6

IO1*1 NuMBER OP OOSERVATITNS: 690

-4- _

GLOuAL CLIMATOLO0Y BRANCH PERCENTAGE FBEOU-NCY OF OCCURRENCE OF SURFACE WINL) DIRECTION VERSUS WIND SPEED

USAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 ST ATIO. NAME : ZIFBIKZE- NL PERIOD OF RECORO: 78-87MONTH: MAP HOURSILSTI: 0900-1100


DIRECIION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TOTAL MEANIDrGl ES) I t WIN{G

... ..N . .. ... .. . E . .. . Z . ... i .. .. ;;;.. .. :;.. ... ;... .. "i........................................2.......l;......

N I 6 .4 . 1. .7 . .14.2 11.6

NNE I 1 .4 1.5 2.1 12.0

NE . .7 .9 1.9 9.6

(NF .4 1. 1.6 1.6 .7 .4 6.7 I0.8

L .6 1.5 1.3 2.4 1.0 .1 7.(I 10.4

FSE .6 .9 1.0 .7 .1 3.9 7.3

St . .9 1.9 .4 .1 .4 4.2 9.8

SSE I 3 2.2 2.2 .9 .3 6.n 7.7

S .4 3.9 3.7 1.0 .1 9.3 7.5

SSW I. 1. q 3.0 4.2 1.8 .3 .1 11.4 12.2

Sw .7 1 . 5.7 2. 4 .9 .1 13.q 9.8

WSW .4 1.9 2.2 3.1 2.2 .4 .6 .3 11.4 13.4

W .6 . 1.9 5.7 2.8 .5 .6 12.7 13.8

dNA .I .9 .4 3.2 .3 3.1 9._

NW .4 .6 .6 1.2 .1 3.0 9.2

NNW .1 .1 .6 .3 .1 1.3 14.7


1OALS 7.3 19.4 28.1 Z9.1 11.2 3.3 3.5 .3 100.0 1O.?

TOTAL NUMBER OF ORSERVATIONS: 6b9

L.mmmmmmmm l-i

40

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FPLOU-NCY OF OCCURRENCE OF SURFACE w'N3 DIRECTION VERSUS WINO SPEEDUSAFETAC FROF HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 0632S0 STATION NAME: ZIERIKZE- 4L PEqIOU OF RECORD: 78-R7MONTH: MAP HOURSILSTI: 1 UO-140J

I WIND SPEED IN KNOTSDOIRECTIUN I 1-3 4-6 7-10 11-16 17-21 22-7? 28-33 34-40 41-47 4e-55 GE 56 TCTAL MEAN(DEGP-ES I % i.INO

....... : . ............ ........ '........3........ ........ P........?................................................:;.....i ;.. ..

N *. . 1.3 1.7 .9 .7 5.5 2.

NNE I . ! 1.3 .9 .3 3.8 8.8

NE .6 .4 1.0 1.0 .3 3.3

ENE .1 1.11 .9 2.4 .9 .1 5.4 1I1.

L .1 1.3 1.8 2.7 .4 .1 6.S 11.0

ISL .1 .3 .1 .4 1.0 1Z.I

SE . .9 2.1 .3 .1 3.7 9.0

SE .7 1 . .4 .3 2 . . 5.9 A. 1

S .6 1 .7 3.6 1.4 .4 .1 7.8 9.2

SSW .5 2 2.8 4.0 1.7 .3 .3 10.1 12.9

SW .3 9 1.8 '.7 1.3 1. 3 8.2 13.1

WSW .4 .7 1.4 4.1, .9 1.3 .6 • 9.8 14.7

W . 2.6 S." S. 5 3.n 1.9 .6 .3 19.5 13.6

WNW . 6 |1 I . 3 .01. 3. 7 ll.1

NW . . 6 . 1.0 .1 .1 2.4 16.5

NNW |.0 .14 .6 o1 2.4 12. 7

VARIARLE I . F . I .4 7.0

TOTALS 4 .8 I,. I ..8A lrt. 17.. 6.3 1.4 I. 100.0 11.9

...°°°°° ...°.oo .....°° ... .......,o°°°°o.. ..o.........°°..°....°.°.°..°.°°. .°°.°°. ..°° .. ....°.°° ..°° .. .... °°

TOTAL NUMPL OF UFT.ERVATIONS: rUb

uj.•i.

GLUBAL CLIMATOLOGY BANCH PERCENTAGE FPEOUrNCY OF OCCURRENCE OF SURFACE WINU UIRECTION VERSUS WIND SPEEDUSAFETlAC FRO4 HOURLY OBSERVATIONAIR WEATHFR SERVICE/KIAC

STATION NUMBER: 063253 ST AT ION NAME: ZA[R1IKZE-- NL PEPIOU Or RECORD: 70-K7MONT14: MAP KIOURSILSTI: ISUO-1700

I WIND SPEED TN KNO7SDIRECTION 1 1-3 4-6 7-10 11 -16 17-21 22-,?7 28-33 34-40l 4N1-47 48-5N GE 56 TOTAL MEANIDEGREES) % WINU

N 1 11 2.2 3. 1 1.4 .6 A.9 2 J7

NNE s .3 . 6 1 .6 9. S

NE .2 .9 1.9 2. 6 .2 5 . IC.2

ENE I 6 .9 1.9 .5 3.9 11.2

L I 3~ 7 1.4 1.9 .6 4.5 Ic.9

rS c 1, 12 .6 .3 2.9; 6.e

SF .3 2.!' 1.1 .9 .2 9.R.

SSE I 9 A6 2.2 .6 .2 .3 A. .

5 1' .4 1. 1 1.1 .3 .2 S9.6 9 .4

SSW I 3 . 2.0 .0 1.6 .3 7.9 12.3

SW I 3 . ~ 1.6 3. 6 1.-2 . .3 .2 8.2 1 3.6

WSW I . 2.6 3.17 .9 1 .6 .3 .3 .s 10.2 17.0

I .2 Z.6 5.4 N. 8 2.5 .9 .8 .3 17. 5 12.9

WNW. .2 1.9 2.3 1.4 .3 .2 6.2 9. 3

NW 1 9 .0 1.9 .8 .3 4~ N. 7 3.5

NN .2 ~ .3 11 8 .5 .2 .0 1 1.6

VARI ABLE I .6 .2 .R 2.0

TOTAL$ 5.0 16. 3 2a.3 31.98 11.0 49.4 1 .4 .9 .5 100.0 1 1. p


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQU-NCY OF OCCURRENCE OF SURFACE WIND [IRELTION VERSUS WINO SPEEDUSAFETAC FROI HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PE.I00 OF RECORO: 7p-87MONTH: MAP HOURSILS7I: 1RAO-2300


DIRECTION 1 1-3 4-6 7-10 1l-lb 17-21 22-77 28-33 34-4O l-47 MA-S5 GE 56 TOTAL MEAN

(DEGREES I J bIPID.'....................;........ ........ 2........ 5........;......... ............................................... i........8......

N I .6 2. 0 3.2 2.5 .8 .1 9.13 9.8

NNE .6 .6 2.0 1.3 N.M F.6

NE . 1 7 2.1 .6 4.5 7.7

ENE .1 .6 1.0 1.0 .3 3.0 9.q

E .8 . 2.5 1.4 1.6 .4 6.8 8.1

ESE .6 .7 1.1 .3 2.7 6.6

SE 1.4 .7 .7 1.3 .1 5.2 7.2

SSF 1.0 1. 1 1.6 1.0 8.7 7.2

S .M 1 7 1.7 1.3 5.1 8.1

SSW 1. .1 2.0 2.0 .7 .6 6.6 11,2

SW .6 .7 2.5 2.4 1.0 .6 .3 8.0 Iz.0

WSW •. 1 . 3.7 4. 7 3.4 1.3 .3 .4 15. 1 13.9

W .4 3.7 2.6 2.7 .6 1.1 .3 .1 .1 I1.M 11.5

N NW I 3 1 . .8 .3 .1 .3 3.2 8.6

NW .7 1 1 1.4 1.7 .3 ,1 5.M 9.M

PINW I . 1.t. .3 .7 .1 .3 3.2 9.7

,,,R....,;; .." ....•' ; .. ... ...... .................................................................................. VARIABLE I 1.11 1.0 1.3

TOTALS I 9.6 23.4 27.9 26.8 8.2 3.7 1.1 .7 .1 100.0 10.0


---- 'L

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOU-NCY OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PECIOD OF RECORD: 7R,9L1-97

MONTH: MAR HOURSILST|: 2109-2300


UIRECTION i 1-3 4-6 7-10 11-lb 17-21 22-'7 Z8-33 34-40 41-47 48-55 GE 56 TOTAL MEAN

(OE"GQ-ESI I % WIND

N .9 1.0 .9 1. 3 .3 .2 5.5 9.5

NNE .5 1 4 1.4 1. .2 4. 7 g* 2

NE I 1. 1.1 2.0 1.4 .2 5.8 R,1

ENE s 8 1.1 1.3 .8 .3 5.r jf.4

E .9 1. 6 .9 1.6 .3 . P.?

(SE .9 1.6 1.6 .8 .2 5.0 7.0

SE .6 2.0 1.7 .S 4.9 6.6

SSE .. .9 1.4 1.3 .9 4.6 7.2

S 1.1 2.0 2.4 2.0 ,3 7.8 .2

SSW .8 .9 2.8 1.6 .9 .3 .2 7.5 I0.5

SW .9 2 . 7 4.7 4. 4 .A .5 13.5 10 3

WSW . 1 1 3.0 4.6 1.4 .5 .3 .3 11 . .5

W I . 1. .8 2.4 .6 .6 .3 .3 6.6 1.2

WNW .8 1. 4 .9 .3 .3 3.8 7.n

Nw .9 , .6 .5 .2 .2 S. 3 7.1

NNW 1 . 8 .5 1.1 .2 3.6 7.4


TOTALS 14.3 22.3 26.7 25.7 6.3 2.7 .9 .6 1O. 9.1


do

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FRLOU-NCY OF OCCURRENCE OF SURFACE WINU UIJPECTION VERSUS WIND SPEED

USAFETAC FRO4 HOURLY OBSFRVATIONS


STATION NUMBER: 63250 STATION NAME: Z][RIKZE NL PiRIOD ur RECORD: 79-97MONTI: MAP HOURSILSTI: ALL

I WIND SPEED IN KNOTSDIRECTION i 1-3 9-6 1-10 11-16 17-21 22-? 7 28-33 34-O I-N? N0-5S GE 56 TOTAL MEANIOEGREE S I 1 WIND

..................................... ........................................................................................................N .4 1.0 1.5 1.5 .5 .3 .0 5.. 1C.A

NNE .3 .7 1.3 1.1 .2 .3 3.7 9.1

NE . .9 l.8 1.1 .1 .1 N.4 6.7

ENE .6 1 3 1.2 1. 3 .6 .7 5. 1 9.8

L .7 1.A 1.2 1.9 .5 .1 6.1 9.2

E SE .5 I• n 1.0 .5 . s 3.2 7. 3

SE .6 1 . 1.7 .b .2 .1 4.5 A. I

SSE .7 I • .2 . T 1 .2 5.2 7.

S . 2.3 2.4 1.5 .2 .1 7.3 8.2

SSW .5 1.(, 2.9 3.0 1.1 .3 .0 . 9. 10.9

SA .6 1.9 3.7 3.1 2.1 .4 .1 .1i 11.0 10.8

SWSW ., 1.? 2.9 3. 9 1.5 .9 .4 .3 . 1 . 5 13.s

I .6 . 2.9 3.6 1.9 .9 .6 . D .. 1.7 I2.9

WNW .u 1 7 1.1 1. 1 .2 .1 .0 . 9. 1 9.0

NW .5 .7 .6 2.0 .3 .1 .0 .1 3.2 10.5

NNW .4 ., .5 .b .2 .1 .2 .L) 2.6 12.0

.o.o..o~... . . . . . .. . . . ...... ........ oo..o...oo.......... ,. oo o .o ..o.o....o...o..... .. .o..oo .... ..... o.. .....

VARIABLE I 1.1 • 1 1.2 1.6

TOTALS I 9.5 2u.7 28.8 26.5 8.9 3.5 1.4 .7 .1 100.0 2o.3

TOIAL NUMBE" OF OBSERVATIONS: 5296

-4

bLOtAL CLIMAEOLO.y BRANCH4 PERCENTAGE FREQATNCY OF OCCURREJC[ [OF SlQFACE .J3ND DIRECTION VESU WIND SPEEDiJSAFEYIAC FROM HOURLY 11-RVATIONSA12 wAAIER SIRVIEtIMAC

STAhION NUMPER: 083257 SfAT IrN NlAME:- ZI(RIKZEr NL PEPIO10 OF RECORD: an-Fl?MONTH: 4PP HOIJ9SLSEF: 3730-01(1,

I io1ND SPEED IN KNOTSUIRECT2UN I 2- 4 -b 1-10 12-26 17-21 22-1 7 28-33 34-40 4 1 -47 4P-55 GE 56 1VTAL HIAF.IDEGD-01 I WINDj

N i . .) 3.2 3.0 .2 .3 12.7' 8.

N N 1.4 26 2.4 .9 .5 .2 .' .

NE I 1. 9 2.4 1.2 12.7 *3 7 9

NE .9 2.a 1.7 2.0. A *

L 3.3 9. 1.7 . I IV.~ 4

Est I14 .2.2 1 .

SE .2 1.7 1.8 .2 'a b.

5 SE I .2 1.7 .9 .9 3 .0 R9.3

S I .2 1.E 2.8 1.0 4~9 .

SSW 1 122. .9 2.9 .2 .! .7

SW I 1. 2.6 1.4 . .7 .2 .1 1 1.2

WSW I .7 . .3 1.' .9 8.9 1..

I 7 2.2 2 .2 .5 .2 .3 5.' 0.2

WS 2 .7 1.0) .9 .5 . .24.9 .4

Nw 1.6 1. 2 .0 17 3 .2 9.9 7 .8

NNW 1 .4 2.7 1.6 .3 .3 4 . 8.

VARIABL3 I . .5 2 .4

TOTALS I 2.6 28.f! 28.6 29.U 4.2 1.? .3 200.0 7.8

TOTAL NUMBER Of oPSrRWATI3NS : 5

Ad~L rtLI*IOLQ., BRjANCH Piq(.t.I*(i F0Iju:4C7 Of OLCURR!4f OF SURFACE WV~ ..,W~j.TIINhIRu W1450 *2ND E SIL)us FI TAC F RO" HOURL OBSIRVA7ION'AI:1W WA T4fR !lFRW2C2/M4C

5 (A7T0O NUMBER': 0)6 i," 574AI1 AN% An "I44 2I I RigIt: NL Pi r I nil or hi1cJ4L. so7-"?

" ONVU APR) *OUR%4LSII; JV.jf-f57j

I.2240 SPEE[D IN A4015

UI4

tCl1U4 I I- 4-6 1- I L Il- I b 1 7-21 22,-7 1 '41 54-4 4 t-47T 4 11-I6 .1 S6 FOIhL Pqtlot .R:fS $I A .N

N I .7 1.f 1.A 1.- . .4 .2 ?7 Ij.0

I .Y 3.. 2.2 .' .4 R.2 7.1

Nf I s.4 I A 2.2 . .7 7.1 I I

I62 N 2.' 1 . 2.4 1 . 6.6 6.4A

1 . 1' 2. 7 1 .. 5.

rt I .4 1. 1.3 .2 4.6 f,. 0

S I 7 17 2.2 .4 5 .3 7 . 1

SSW I . . 2.4 n1 .6 .2 2. 9. 3

SW cl6 . 2.7 1.1 .2 .4 6. 7 . 7

W. .7W 1 1 .3 .4 .6 . 6 13 .1 1

6Nw I .r 1.3 .1 .2 .' .3 7.7

NNW I 7 i .6 . 6. 6. 4

101416 1 6.6 32 . 27.7' 16 .2 ? .8 2.6 .251 ', 0f.O 7.9

T07AL NUMBERI OF 045722vATIONS: 5649

eA

(U'46t CLIMAIC LOGY B6*4(7 FtiC(NIAGE FRL~uU CY OF occuRRrNrE OF SURFACE wIND LIIPILIION VERSUS WINiD SPEEDuSAFIYAC FROM HOURLY OBSrQVATIIN!AIR SlATHER !SERVICL/MAC

STATION NUMbER: Lu63253 %I AT I O 'AME : ?IrRIl?E:- NL ?EQIfl OF WECOPO: YA-81nfNY.4: App .OURSILSTI: Z6ouP0B03

I WIND SPEED 14 APJOTSDIRECTIONI I I - 1 4-6 7-10 1 Ib 17-21 22-' ,a 23 3 34-40 4 1-4 7 47a-5, Cd -l6 TOTAL ME ANCOFUQE[I I, 1 hIND

NNE I .2 .7 2. 7 .1 .2 6.3 6

NE I .5 19 2. i. .6 7. 9.6

[ NE I .. 11 2.2 2. 1 .5 .3 3. 4 J-

I 27 2.2 1.6 h. 6.b

(SE I .3 7.2 1.4 .5. 6.

SSW I 11 .6 2.2 1 .4 .1 7.1I R.8

s5 .6 1 . 1.4 7 . .2 9. .6

AS W 1. 1.6 1 .41 1.0 .3 .2 6 .4 f I1

S ?4 S.t 1. 1. .6 .2 .243

w4 I A6 .. 1. . .

No I . . . 6 . 4.0 7.7

PNSW ~ . .. . .2 .6 4.5 1 1.6

CAL481 II 1./ 111e 1.3i 1//t ///

TOTALS I 14.7 26.?F 10.0 If. 3 5.5 2.1 .1 100.0 pl.?

TOTAL NUP6AAP OF ORSFPVA71ONS: 61?3

-6w

6103AL CL|8AIOLOS' PANSCH PE4CtNIA{I FO WU-NC1 Of OCUcRRENCE Of SURACE .11-3 Ulrt II0t VERSUS .IND .PEF

uSAFETAC FRO HOUMLT OBERVATION,

AIR .[4ATMEI [RVICL/" cSTATION MU7Bt.P: GC(325' AIO .A-Of : II F 2 13 k IL P''!30 - "(0 F 0: 38-I7

MONT.: APR 'OURSILSI: 39UP-I00

WIN SPEED IN KNOTS3

DIPCIION I 3-3 -b -I3 l-lb 17-123 22-77 28- 3 34-40 93-47 'P-S5 G. GE 30TTL PEAN

I0E [ R7I I NU

9NN 7 1.3 1. " .1 .0

NF.2 I . .6 ? . 6 1.0 .1 9. 1.

[N( . 1 .• 3.0 3 . .3 .. 1

I 3.' 3.8 2.0 .3 1.36 2.8

70 I . . 2.1 17 .2 4* .~

S' g, 2" ..3 96.31 . P

tS7 I .' 7. I 3.0 1. 6.9 7,P

I 1,7 3.3 2.5 1.6 ,8 .9. R 9.-

Sw F 3 . 1.0 13.37 .2 A 73

.F 1.? .8 1.q 1.0 ,? 6.7 1.0

WSW ,' 3, 1.0 .8 .7 .7 .2 5.3 11.9

V., 2.0 6 2.3 . .5 A.' 10.0

' ,. .N I.2 1.5 .2 9.0 .

NW , 1.2 .0 .7. 1 7.3

NNW . 2.0 A8 . 3 1" 3.4

v.l.i.AB.r I 3.0 3.0 1.8

TOTA8 L S.. 2 .r 31.8 27.8 6.8 3.s .2 100.7 8._

3T7A NUMR[R OF O578VT1ON$: 6(35

I.L 1, iLL I M A IOL~, OU 9.AN PE f.I yA GEF rI XU 4[T, Of OCEURA(Ift [ J7 SdRIA. fk .( 6 .'' 1 , ISlf ION4 % ' N , 0

A I I W P 177 51977C7/7AL

S IA r106 IV U7 4 [t7: OFb.'I I7A OP. 61'AF M R7 ljat L 00' 'C7] 'I77 , :A F -OUR%7 I I I ' I

WINOj 5771 1 t Fft%0 T

I. C I. I. 6.N I. .5 q 411 11-Ic IA 11(IL*

I.67, I A I. .7 .

f 4F 1 2.6 2.7 1.7 .

f ~ S. . 1 2.f I ~55*~ I . I . . . . .

st . . 2.1 1 .6 2 . .

0. I . I. 2 1. I .2 2 . 9.61 1

76; m 7 .o 32 2.7 . .2 7.3 1

TOTALS 61 6. 31.7 32.9 10.12 FF. .2 120.0 11.0

TOTAL NUMPLR OF 0175(63A I IDN 659

-6m

.L .&L A LINAInLOY',V RM1{AN( P L INi ar, u rRLjU-%Cv OF OccuR![r Wt Or SURI AC[ I,, IOINF( |19 VIWU .1%0 '.,P[I bp.19199*I( FRO

t HOURLY 04 QV& |0"%

A I F .09H ( RV Act f-£,

A 1 1O% NlU,'t97 : cc> ,; sills 1 0% iq I R' I KIYt- NL rF . 1O0 OF r C3PD: D 19.fld-71

""9

114 : AIP HOUpRSILrII: I," -1 IL I. . .. .. .. .. .. . . .. ... *..* .. .. .......................... .* . ............. . .. .*. ....... .. .** . . .** ,* * .. . . . .. .. .. . . ..,*. .* **.. .. .. . .. .. . .. . . .. •

t1190 SP E[ 1 11KNOTS

LlPLfl11 -I b- -1 1-1I 19-]1. 1 A-29 1s-? 1 $$ 19-19I' -47 r -' z . 6 10 A, M A N9I 0 i b 1 14 F91,

9 .I ,. 19.1 q. i .1 *19 ,'7. I .O

., . . . .. .2 .. . . .. .

9199 • .7 9.5 9* 9,.7 *.* ,Q 97.9)

. . . .. .. . . ..*

9,$f .*, 1. 9 .7 .,s .7 p *S., ., 9.9 ,7 75.1 ll.

% .' 2• 7.7 9." .? .. 0

.9 .s .9 . ., 7. 14 . 3

S .7 *.7 b.l, 7.9 2.n ,t I3. 11.2

*N. . 2. 9.9 7.) .2 .2 6.4 1.8

9* I .? 9.l! 1 1 .7 .2 .3 9*19

Nm1 .' 1 19.0 1.9 .9 .r .1 9.9

.999*1 . . ......... ............ 8 ........... ............ 19 ...........

1191S I ..9 12.1 52.1 12.2 3.1 .5 .7 nO.fl iI.9

TOTAL 1i99l RO O 9RV I 1|ION: bu1

mi e

ULULAL CLIMAIOLO6y RRANCH PERCENTAGE FPLOU-NCY OF OCCURRE-NCE OF SUgFACE WIN) OIRECIICN VERSUS WINO SPEEO

USAF(rAC FRO HOURLY OBSERVATIONSAIR FCATHER SERVICL/MIAC

S1AION NUMPER: 063250 STA19N NAM[: ZIFRIKZE NIL OEQIOU Of RECORD: 78,8z;-alPOSIT: APM HOURSIL5II: 1800-2303

WIND SPEED IN KNOTSUIR[CTION I I-I 9-6 7-10 11-16 17-21 22-27 28-33 34-4O 4I-4I 7 F-55 GE 56 TOTAL HEAN10( G LCS I % WIND

N . 3, 9.6 9.N 1.9 20.6 10.6

NNE I .5 1." 2.9 2.9 .6 .3 8.q 10.4

NE .9 1 . 2 1.5 1. 9 .2 .3 5.9 9.?

E NE .5 1 . ? 1.5 2. 3 .8 6. 3 9.9

1 .8 1. i 2.6 2. 1 7. 1 A. 7

rsr ,3 ,5 .b .6 2.0 7.8

SE ,L 1.1 .8 .8 3.9 6.8

Si 1 .2 1 .7 1.2 .3 3.9 6.9

S ..' .T .8 .9 2.3 9.9

5W 2. .9 .5 .3 1.9 11.3

SW ,. * 3 1.2 ,5 2.2 O*9

uS- .5 1 1 1.5 3.5 .6 .6 .2 6.n 11.7

8 .9 Z. 3 9.8 2. 3 .8 .3 .2 11.6 9.7

WNA I I .4 2.5 .8 9.9 7.8

NW .5 .9 2.2 .6 .2 .2 9.5 e.8

NNW 1 .2 .9 3. 1 . 7 .5 7. 7 R.6

VALE I .9 .9 1.CALM i i /I f /I fl f fl f 'r I J, .5 ///1//

TOTALS I 9.1 19. 4 33.2 20.m 5.7 1.7 .3 100.0 9 .94

. A . NU.. ER.. .. o..... .. o.. .. 6...... . .... ...... .... ... .... o...... o... .. °.... ...... ,.. ... ....... ,.......°

TOTAL NUMBER OF UPS[ERVA T|ONS . 647

I I !

(LOUAL CLIMATOLOGY BRaNCH PERCENTAGE FvLQUzNCY OF OCCURRENCE OF SURFACE 41-43 DIP C(TICN VERSUS 0IND SPE.EDUSAFETAC FROM HOURLY OBSERVATION

,

AIR WEATHER SFRVICE/MAC

STATION NUMBER: U63257 STATION 'VAME: ZIER1KEE NL PKIIOD OF PECORO: 7I.Bu-VT

MONTH: APP HOURSILSTI: 2107-2300

I WIND SPEE IN K401

OIPEC7ION i 1-3 4-6 7-10 11-16 17-21 22-?7 28-33 34-40 41-47 48-S5 bE 56 TOTAL MEANIOEG -[ESI I % 6INO

N 1 .8 4. 3.6 4.5 .5 14.3 8.4

NNE I 2.2 3.A 3.2 2.0 .7 l.9 7.7

NE 2.1U 1.4 1.9 .4 6. ,0

fNE 1.6 2.' 1.3 2.. .4 7.6 7.6

E 1.1 3.4 2.2 1. 3 7.Q 6.8

(SE .2 1.4 .9 .5 3.1 7.2

SE o7 .4 .5 .4 2.n E.3

SSE .5 -7 1.3 .5 3.1 7.4

S .4 ,1 1.3 .2 .4 3.1 4.3

SSd 1.1 .9 .2 .2 .2 .c 9.4

SW .5 1.3 1.8 1.4 .5 .2 5.R 9.8

WSW .7 2.0 2.5 2.5 .9 .2 88 9.7

I 1,1 2. 2.0 1.1 .2 .4 7.2 8.1

WNW I .4 . .7 .4 .2 3.Z 6.2

NW .9 1., .2 .4 3.1 4.9

f.NW I.1 2.? 2.7 ,9 .4 .7 7.4 8.0

VAR;APLE I 1.6 1.6 1.4

CAL" ~ ,/,///'/I/IIII/I/iI/I//I/I/I//////i//////// .2 ////

TOTALS I I .1 30. .3 26.5 20.2 4.7 .9 .2 100.0 7.8

TOTAL NUMBER Of OPSERVAT1ON$: 555

-u c_

4

LO[ AL CLIMATOLOGY B A NH PERCFNTAGL FREQUENCY OF OCCURRENCE OF SURFACE WIND DIREL.TICN VERSUS WIND

SPEED

USAFLTAC FRO4 HOURLY OBSERVATIONSAIR E18ATHER SERVICE/MAC.

STATION hUMSER: 063253 STATION NAME: ZLERIKZE NL PEDIOD OF RECORD: 7R-87

MONTH: APR HOURSTLSTJ: ALL

WIND SPEED IN KNOTSDIRECTION i 1-3 4-6 7-10 11-16 17-21 22-?7 28-33 34-4I 41-47 48-55 GE 56 TOTAL MEANtO S GR I

S t W I N0

N I .9 2.73 3.2 5.1I 1.6 .3 .0 1, l

NNF .7 1.9 2.0 1.1 .4 .1 6.5 8.7

NE .6 1.4 1.6 1.8 .6 .1 6.1 ".9

ENE R . . 3 2.3 2.S . .1 7.3 9.8

1 .1 2. 1 2.4 1.8 .2 .3 7.6 P. 0

ESt ,. I, 1.1 .5 .0 3.2 7,2

SE .6 1 1.5 .5 .0 4. 1 6.7

! SE .4 1 7 1.6 .7 .1 .3 4.5 7.6

S .7 1 6 2.1 1. 1 .4 5.9 9.3

SSW I 1 1. 1.4 .9 .3 .1 .0 4 .G 9.4

SW I .4 1 1.4 1.3 .4 .2 .c 4.A 9.8

WSW .4 1.3 1.6 1.5 .6 .1 .2 .9 6.u 11.3

A .7 l.1 3.1 2.0 .7 .6 .0 8.6 10.5

WNW .7 1 .4 1.4 1. . .2 1 ,0 5. n S. .

Nw .6 1. 1.4 I. .2 .2 .0 4.6 8.6

P.NW 7 1 1 2.6 1 . .3 1T 6. 9.6

.................... ..................................................................................... .......VARIARLE I 1.4 ,7 1.' 1.5

CALM .3 ////1/I////I/iI/i//#/II/I.I/II/I//u I II/IIIII iIII/I,/ .7 IIII

TOTALS I 11.2 Z ."

30.3 24.8 6.7 2.8 .3 .( .00.n 9.2

........- ,,..................................................................o...................................

rOTAL NUMBER OF OBSERVATI3NS: 4A19

J ,-

40

GLOBAL CLIMAIOLO6Y BRANCH PERCENTAGE FREQUCNCY OF OCCURRENCE OF SURFACE WIND DIPECTION VERSUS WIND

SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONS

AIR WEATHER SERVICE/tfAC

STATION NUMBER: U63250 STATI VN NAME: Z'.'FRIKZE- NL PE710D OF SECDR0: 79-8bMONTH: .mAY HOURSILSTI: 0000-0200

I wIND SPEED IN KNOTSDIVECIOON 1 1-3 4-6 7-10 11-16 11-21 22-1T 28-33 34-40 41-47 48-55 G 56 TOTAL MEAN

0EGr ESI I % WIND.... ................................................................................................... .,..... .. ..

N1.1 . 3.3 .8 .P .6 7

NNE .4 2,7 2.7 C.1 8.4 7.7

NE 1.1 1.7 3.1 1.3 7.3 7.4

ENE .8 *R 2.3 1.0 5.0 7.9

L .8 4.6 4.8 2. 7 .2 13.2 7.8

ISE .4 1.7 .6 2.7 5,2

SE .8 1.9 .8 , 3,q 5.3

SSE 1.0 .8 .b .2 2.7 5.0

S .6 z.9 2.1 2.9 .2 8.8 9.5

SSw .6 1•, 2.1 7 6. S .e

SW .2 1 5 2.7 1. 7 1.3 7.3 17.4

WSW . , 1.3 2.5 1.0 .7 6.7 11.2

W 1.3 . 1.9 1.5 .8 6.1 9.3

wNW .4 .6 .2 .6 .2 2.1 9.2

NW .6 1 . 1.5 . 4.0 6.8

I.N, I I.f .4 1.7 .6 .4 4.2 7.9

CAAL 1.5 .

TOTALS I 1',2 27.r 1 .8 20.9 4.6 .2 100.0 7.9

TOTAL NUMBER OF ORSEPvATIONS: 418

Ab.

GLObAL CLIMATOLOGY BRANCH PERCENTAGE FREQU--NCY UF OCCURRENCE OF SURFACE WIND DIRELTION VERSUS WIND SPEED

USAFETAC FRO4 HOURLY OBSERVATION'AIR .FATHER SERVICE/MAC

STATION NUMPER: 063253 STATION NAME: ZIFRIKZE- NL 'ErIOD OF RECORD: so-N ,86MHNTf: PAY HOUqSILSTJ: 030-OSCO

WIND SPEED ITS KNOTSDIRECTION I 1-3 4-6 7-10 Il-lb 17-21 22-27 28-33 34-4O 4l-N? 8-55 GC 56 TOTAL PLAN

(DEGREESI I i .INU......o.. °.. o. . ...... . .. ° °. ° o......... , o....o ....o. .. ° ........°.°° .. °.. . °° ° ..... . .. .. .... ....... .°°. o.. ° .......... o°

N 1.9 2.P 1.9 .7 7.2 5.q

NNE 2.3 I. c 1.2 .7 5.9 5.6

N I , 1 4 1.9 2.3 6.5 8.3

fF 1.6 .7 .5 2.6 .2 5.6 6 . 3

E 2.8 3. n 2.9 2. 1 .5 1 1 .2 7.?

FSE 1 .6 1. .9 .5 4.7 5.

SE 1 .9 1.9 .9 .2 4 .' .

cSC .9 1 • 1.4 V .? 4 . 7

il .7 3 3 .7 2. I 6.6 7.6

OS. .9 1.9 2.8 1. 9 1.2 9.6 9.7

SW f. 2.' 1.9 3.7 .7 9.3 9.S

WS6 .7 .7 1.6 3. 3 1.6 .7 A.? 2 1.9

w .7 .9 1.2 .7 .2 3.7 7.6

6NW .9 1.6 .2 1.4 4.2 7.2

NW .5 r 1.4 ,7 3.3 7.8

NJNW I.4 I.? 1.2 .5 r6 4.7 7.1

• .. ... .. , .. , ,. . .. .. .. ....... , ,. . . . ,. . ...............°... ... .... ... ............ ........... , . . ~ o.. ,.1.,•VARIABLE I 1.4 1.4 I.?

TOTALS 21 .7 27. 22.4 23.3 4.9 .2 100.9 7.6

.°..................o.....o.............................................o.. ................................... °............

TOTAL NUMBER OF OBSERVATIONS: A29

GLOAAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE dIND OIRFCTION VERSUS WIND SPEEDUSAFE TAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 06325 STATION NAME: ZIrRIKZE- NL PERIOD Of PECORo: 7I-86

MqNTH: MAY HOURSILSTI: 0600-O0AC


DIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-,7 28-33 34-40 41-47 48-55 GE Sb TCTAL MEANIDEGR-E S I % WINU

N .9 •7 2.4 1.9 .4 6.3 4.0

NNE 1.5 2.2 1.3 ,1 .2 6.0 6.7

NE .6 ?, 3.2 2.1 .2 R.9 8.1

ENE .6 1 . 3 3.0 1. 3 .2 6.3 p.5

E 1.7 2.2 3.0 3.0 .2 10.1 B.2

E SE .6 .6 1.9 ,7 3. 3 7 .5

SE 2.? 1.1 3.4 6.1

SSE .9 1 . 5 1.5 .2 4.1 6.4

S 1-3 3.5 2.8 ,4 .7 t.9 7,2

SSW .2.? 1.9 3.0 .6 9.0 8.7

SW 13 e.N 2.B 2.8 .4 9.q 9.0

W1SW .9 . 1.7 1.9 .7 .2 6.q 11-2

W .7 1.9 1.3 .7 .2 4.9 7.5

W NW .6 1 . 11 .4 7 .2 3.4 7. 1

NW .2 .6 .9 1 . 3.0 9.9

NNW .6 .9 1.7 1. 3 .2 4. 7 9.0

.................................... .....................................................................................................VARIABLE I 1.9 1.9 1.4

~CALM l i/ii////// /I// / ///// /// I ///jI/////////// l///II // ///j////// // ///////I//

TOTALS 1 . 27.4 30.8 21.4 4.3 .2 100.0 8.1

........................................................................................... ..................................................


-mmmumnn

GLObAL CLIMATOLOGY BRANCH PERCENTAGE FRLDUE-NCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED



STATION NUMBER: 063250 STATION NAME: ZIERIKZE: NL PE91O OF RECORD: 8-84,86MONTH: MAY HOURSILSTI: 390-1I1O

.....................................................................................° ; .......................................-. ,-.,


DIRECTION I 1-3 N-b 7-10 11-16 17-21 22-07 28-33 34-40 NI-47 48-55 GE 56 TOTAL MEAN

IDEGREESI x WIND

...... ................................................................................................................N .4 1N 3.3 l.A .4 7. '; 6

NNE 02 R 1.0 .4 .8 3.3 1C.0

NE 1 .2 2.6 1 .4 .0 .2 6., 10.7

FNE .2 1. 4 2.0 3. 1 1.6 8.4 .S

E .4 2.{ 2.0 2.6 .8 7.9 IC.2

ESE .2 1.11 1.4 1.6 . 4.5 9.2

S" .2 .6 2.0 .8 .4 4.1 9.1

SSE 1.. 2.0 .4 . 4.5 6.4

S 12. 4. 3 3.5 1.0 .6 10.6 7.0

SSW .6 1.2 2.0 2.0 .4 1.1 9.q

SW *2 .4 .8 3.1 1.2 .2 S.9 12,.9

WSW .2 1 .0 2.9 1. 8 .4 .4 .6 7.3 12.2

W .6 3.5 2.2 l.8 .4 .F 4.9 9.5

WNW .4 .B 1.8 .2 3.3 6.8

NW .2 A 1.4 1.0 .4 3.9 9.1

NNW .4 (1 2.6 7 4 .8 6.9 11.l

VARIABLE I .8 .4 1.5

TOTALS I 6.3 22.F 33.F 2.7 9.4 1.4 .6 100.0 9.7

TOTAL NUMRER OF OUSERVATIONS: 491

GLORAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SUqFACE WIND DIRECTION VERSUS WIND SPEED

USAFEIAC FRO l HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 0632S0 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 74-86

MONTH: MAY HOURSILSTI: I2?D-1400


uIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 48-55 GE 56 TGTAL MEAN(OE GR- E S I % WIND

N .4 2.4 2.2 S.a 2.4 .2 13.5 11.9

NNE .4 1. .6 .7 .2 3.4 7.9

NE . .7 1.3 .7 3.2 12.6

ENE .4 3.4 1 . 7 1.5 .4 7.' 12.5

E .4 .7 3.2 3.0 1.3 8.6 11 .0

ESE .4 .7 .q .2 1.7 10.3

SE .2 .1 1.9 .6 3.2 4.5

SSE .6 2. 1 2.1 .7 5.4 6.7

S . 2.- 1.9 2. 1 .2 .4 7. 7 9.2

Ssw .9 1.7 2. 1 .7 .2 . 5.A 12.4

SW • .4 .9 1. 7 .4 ? 3.6 12.8

WSW .2 6 2.4 1. 9 .6 .4 .2 .4 6.5 I3.4

. .T,' 4.5 3 .O 1.5 .2 12.3 10.0

WNW .6 2 . 1 2.8 1. 1 .4 7. 1 6.2

NW .4 .6 .9 1. ..6 3. 7 Ia. 3

NNW 1.1 2.1 2.6 .9 .2 6.9 1.4

• .. .. * oo .... ... .. .o ............. •.........°....... ...... •.. .......°•.. ... ................................. z ..... .. o °.VARIABLE I .? .2 1.0

1IALS [ 3.9 19.6 32.0 30.1 11.6 2.1 .2 .6 IO.O 1o.7

TOTA..L . ,, NU E O... . o. ,•,TIRVATIONS: ? 5......... . ............ . ... ..... .. ... . ,


(,LOCAL CLIMATOLOGY BRANCH PERCENTAGE FPLQU:NCY 03 OCCU.RRENCE OF SURFACE .IINU UIRFC.TIO VERSUS WIND SPEEDLSAFETAC FRO HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

ST3ATION NUMBER: 063253 SIAT ION NAME:' Z1CRIK./E NI. PE710L~ OF PEC3OO 7R-14.,86MONTH: ..AY HOURSfLSTI: I'L7O-1703

I WI1NO SPEED IN .440750IHECTION I 1-3 4-b 7-10 11-lb 17-2 1 2.--?7 28- 33 3N-40 4 1-4 7 48-s GE 5b I L A L MEA%(DEGRrESI AL WIND6

TI I .2 2' 7.0 B. 7 3.4s .11 ;2 1

NNE I .2 .7 1.1 .4 .2 7.1 9.6

NE .4* .6 .6 1. 7 4.

I NC I .7 1.9 2. 5 .6 I.4.

II I.4 21 2.8 2.2 ?.4 1".9

E SE I . .9 .4 .2 .2 2.c,.

SL 4 1.9 .23

SSE I .4 . 1.1 .4 2.4 7. 5

.4 1' 3.0 .s 5. 7 .7

SSW I . ~ . 1. 3 1 .5 .2 3.4 1'.

SN I . ' .6 1 . .4 3.h, 13.0

WSW I.. IA, .A 1.1 1.3 5.' ".

I 6 ,3 3.4 4 .7 2. 3 1 .1 14.4 2.

WNW .4 1 . 3.0 1. .2 7.1 81. 7

NNW I 4 4.!' s. .6 A8.?7 J. I

1OTALS 5 5.5 11. 4 53.8 12.2 12.3 3.6 200O. 0 1.

10OTAL NUMBERQ OF ORSERVATIONS: % I1

GLO'AL CLIMATOLOGY 88RA-

044 PERCENTAGE F61.OU7NCY OF OCCURRENCE OF SURFACE WIND) UII4EClION VERTSUS WINO SPEED

USAFE TAC FROf HOURLY OI4SERVATIONSAlp WEATHER SERV1CC/MAkC

STATION NUMRER: 063253 STATION NAME: ZIRIKZ(E" S4L PERIOD Or RECORD: 78,80-86MnNTH: MAY HOURSILSI I: 1800-2300

I W.IND SPEED IN ANOTSDIRECTION I 1-3 4-6 7-10 lI1-16 17-21 22-? 7 28-33 34-40 4E1-47 48-55 GE 56 TOTAL MEANIDE GR.E S I % WIND

................................................................................................................................................N .8 7 .1 6.6 10.?7 1.9 22. 1 11. 1

NNE ~ . 4.1 2. 1 .2 A .1 9.2

NE .2 1I. .8 1.2 .2 3.5 9. 1

E NE I .2 7 1.0 .6 .2 2.?7 9.4

L.4 1 .6 2.9 2. 1 1.4S.3 1 2

f5 ST 1~z 1.2 .2 .2 2.3 ~ .I

st I . I.E .6 .2 3 .1 5.6

SSE I .4 1I.r .4 .3 2 .5c 7.9

S 13 .2 .8 . 2. 3 6.-3

SSW I .6 1.4 Ft 1.0 .2 3.9 8. 1

S. .4 ~ .4 .6 .8 .2 2.9 1 1.1

WS .11 1, .6 1 .0 1 .6 1. 1 6.0 1 3.5

I .4 ' 4.1 2.71 1 .4 1. 1 3.4 10.9

WN .13 .3 2.5 .4 .2 .2 6.4 7.6

N I .6 .E 1.2 1 .6 3. 9 8. 3

NNW I .4. I. 1.9 1 .9 .6 7.7 9.8

VARIABLE 1 .4 .4 1.0

TOTALS M R. 1 2. 331.6 17.31 8.7 2.7 100.0 9.8

TOTAL 4UMIIIP OF O4E5E8VATIS: 5 16

GLO.JAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND UIECTION VERSUS WIND

SPEEDUSAFETAC FROM HOURLY OBSERVATIONS

AIR WEATHER SERVICL/MAC

STATION NUMBER: 063253 STATION NAME: ZIERIKZE- NL PE:0OCC OF RECORD: 78,80-84,8bMONTH: MAY HOURsILS9I: 210nT-23CO

WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-lb 17-21 22-07 28-33 34-40 41-47 8-5S GE 56 TOTAL MLAN

IDOF(R.ES) % 6 INU)

N t.6 2. 4., 0.2 .2 12.n P.5

NNE .9 4 . 2.5 .9 .5 9. 0 b .9

NE I 2' .? 1. 6.6 V.0

ENF I . .4 2.9 .2 0.4 6.R

I . . 3.4 2. 5 .2 9.4 A 3

FOE .7 1. .7 2.7

SE .7 .7 .c .2 2.0 ct.A

sSF I .0 .o .. .5 1.I 6.9

S |°t. 2. 1.4 1 6.6 6.6

SSW 1,I I.c 2.0 , 01.9 6.p

SW . .3 1.6 1 .6 1.4 7. 7 10.1

WSW .9 1.4 1.4 1.0 1.6 .5 1.0 11.

4 I .7 l.- 2.0 1.4 .2 6.1 4.q

hNW .9 2 .1 . .9 4.1 6.1

NW I.6 . ,9 ,2 1

NNW .7 j.A 2.3 .9 .7 0_9 ?

VAR.IABLE I 2.0 .~ I. .

TOTALS I 16.6 29. . 30.b 17.9 4.S . .2 100.0 7.7


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQU:NCY OF OCCURR7NCE OF SURFACE WINU OIPFCTION VERSUS WIND SPEED



STATION NUMBER: 063253 STATION NAME: ZIERIKZE NL PEC'OO OF RECORD: 78-RbMONTH: MAY HOURSILSTI: ALL

......o.... .. .........,... .o.. ..... ,........ ... ........ ; ...... °........ ...................... . ....... ...... . .,.*.. ..... .. ,


DIRECTION I 1-3 4-6 7-10 11-1b 17-21 22- 7 28-33 3N-NO 41-47 48-S5 GE 56 TOTAL MEAN(DE GREESI I WIND

N .9 2. 1 3.9 4. 3 1 .2 .1 12.5 1,.2

NNE .8 1.9 1.8 1.0 .3 o7 7.7

NE .8 1 3 2.0 1.4 .4 .3 ,., 9.1

I .5 .9 2.2 1.6 .6 .1 S.R 9.9

E .9 4. 1 3.0 2.6 .8 9.5 S.3

ESE .5 1.0 1.3 5 .1 3 3 1 T.I

SE .5 1.2 1.2 .3 .1 3.8 6.7

SSE .6 1. 1.2 .4 .0 . 3 . 6. 7

S .9 2., 2.0 1.3 .2 .1 7.2 71.7

SSW .7 1. 1.8 1.8 . .1 ,p 6.1 9.7

SA .8 1. 1.5 2. 1 .8 .1 6.2 10.6

WSW .1 . 1.8 1.8 1.1 .5 .1 .1 6.6 12.8

W .6 2.3 2.6 2.1 .9 .8 .0 k .9 9.9

WNW .6 1.6 1.5 .9 .2 .3 4.- 7.I

NW .5 .7 1.2 1.0 .2 8.6 @.6

NNW ,7 .9 2.3 1.7 .6 .3 6.2 9. 7

............. ........ ;......................................................................................................VARIALE 1.2 12.2 1 .3

TOTALS I 11.2 23. 31.0 24.9 ?.7 1.8 .2 .1 00.0 9. 1

TOTAL NUMBER OF OPTSERVATIONS: 3997

L,LO.iAL CLIMATOLOGY BRANCH PERCENTAGE. FPLQU:NCY OF OCCURQRNC[ OF SUOFACE WIND DIRE[CIION VERSUS WIND SPEED

USAF. TAC FRO HOURLY ORSf VATION0.ATIR WEATHER SrRVICE/MAC

STATION NUMPBE: 0t,3,51 STAITON NAME ZItRIKl[ 4L PtQ IOL OF RECORD: on-86MnNTm: Ju% HOURSILSTI: Zlor-0Z0f)

I WIND SPEED IN NOTS

TIRLCTION I 1-3 4-o 7-10 11-16 1 7-21 22-?7 28- 33 3-40 41 -4 7 8-55 GO 5b TOTAL M[ANIOFGQ-E S I w AIL

N.2 1.7 2.8 .9 .2 S.3 8.6

Pi NE 2.3 1,7 .5 4.01 3.F

N[ I .9 3 3.0 7.4 5 P

L NF I . ! . 7 12.n b.4

I 1.6 I .E 3.0 I.? 7.0 7.2

F0 .

St" I. , * ,2 .2 . t,

SF.5 .3 .2 .2 1..

S *.' ,5 I. I , 7,S.

5W I ,.S . 1. 1. 1 . 1 .I

k* .? ., 8.9 2. 7 7 .' 7.

I .NI . .9 4 7.7.

N44. 18 .. I ,9 .9 .7 .. ' -

NN* I 1.8t 1 .0 . .7 ', ,' 0." 8. 7

• .. ,.. ,,. . ., °... ... . .. . .. ......... , ,, ,. . , *. ..... ....... . ... ... .. .............. ... .. ............... ............

VAPIR&. ; I; !,fl: . , . 1 1 .6

TOTALS I 21., 29, .9.! ,.' .1.. . .0 1.... 7 . I

10TAt NUMBER OF UORSFTVAIIONS 81790

GLOtAL CLIMATOLOGY HRANrH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINO SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MA(

STATION NUMBER: 0632S3 STATION NAME: Z1FIRKZE- NL PEQIOD OF PECORO: 80-R ,6MONTH: JUN HOURSILSTI: 0,00-0500

.......................................... .......................................................................................................I WINO SPEEn TN ANOTS

OIRLCIIUN I i-3 4-b 7-10 1l-16 17-21 2.-p7 28-33 34-NO 41-47 48-55 GE 56 TOTAL MEAN

IDF" U - [ S I I w IND

N1.i7 I.' I. .? . 7 . 5*9 7.7

NNE 1.2 12 1.0 3.4 4 .9

Nr Ir) 1.1 2.2 4. 1 5 .8

(NfE 2.7 ..2 4.9 1.1 .2 11.1 6.6

1 1.4 r.7 1.2 .5 7.1 4.6

r I .r z.r' .7 2 4.4 8.4

Sr I . * 7 .i .2 1-. 6.7

Sr . .5 a7 7.0

1.2~~ 2. .9

S5W I . .7 3.4 8.. 1~ 7.6

S I 2 . '4.4 I.? .2 10.0 7.9

WSW 3.2 2.2 .2 II.I 7.'

* b ? . 5 2.7 I. .2 V.6 7.

WNW ", .6 1.6 S.1, 6.6

Nw 1 .2 jf' .7 2.0 .S 5.4 9.1

IV.7 N, i .7 S.7 R.9

.,oo.............. •... • ...... ... .. • ...... . .o .... °... ,..... •• .......... .. ,. ....... • .•*. . ,.........•.. . . .. ,o. ...... •.o

V100 AUA L I 1.6 I.0 "

.o

IFIALtS I 2;,.. TI. ID.C ]'.? 2 .2 .7 10.7 6O• .?

IOIAL NU"IPEV OP oH iIPVAIIO4S: 41(1

-4.

GLOAL CLIMATOLOGY BRANCH PERCENTAGE FOLQUENCY OF OCCURRENCE OF SURFACE IN3 UIPECTION VERSUS WINO SPEED

USAFETAC FROq HOURLY OBSERVATIONSAIR wEATHER SERVICE/MAC

STATION NUMBER: 063250 STAT IN NAME: ZIrRIKZE-

NL PERIOD OF RECORD: 77-ab

MONTH: JUN HOURSILSEI: 0600-OCo....o, ........ , . .•.. • ,o ..... .oo ... .. ........o, .......... , o ....o. . .o, ... ° . ............... o.o, o...,,..... ..


DIRECTION I - 4-6 7-10 11-lb 17-21 22-27 28-33 34-40 N1-47 48-55 GE 56 TOTAL MEANIorTGR E SI I % hIND

N .7 .7 1.9 1.6 .2 -.l 9.

NNE .7 1 1.1 .4 3.2 6.4

ME 1.1 1, 2.8 . 5.9 6.3

ENE 1, -1 7~ . .2 8.9)

7.,1

L 2.1 4.6 lZ 7 .2 9.0 5.6

f1- .5 Z.1 .7 .2 3.5 5.3

SE I .4 .9 .7 .4 2.3 6.7

So .4 .7 .2 1 .4 6.4

I ..4 1. 1.2 .2 3 .r 6.3

SSW S 2.S 1.4 1.4 .2 6.n 7.7

SW q.4 4 ? 5.1 3.2 .2 .Z 13. 3 8.5

I.W I .8 2. 1 .5 R.0 9.0

S.. 2.8 1.4 .4 .4 9.7 9.4

ANW I .7 1 . 2.3 2. 1 .4 7.2 0 .6

%W I, .N 1.4 3.u .2 6.7 9.2

NNW 1.1 .7 2.1 1.6 .2 .4 6.n 9.5

RARIALF I 1.4 ' 1.4 1.0

CA LM f/ / / // / / / / I /// 1// f . I1III

TOTALS 14.1 29.9 37.5 l1.4 2.S . 100.0 7.7

TOTAL NUMBER OF OPSERVATIONS: 566

•-de k

GLOdAL CLIMATOLOGY BRANCH PERCENTAGE FRLOU-NCY OF OCCURRENCE OF SURFACE WIND OIRECTION VERSUS WIND SPEEUUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 77-84 ,bMONTH: JUN HOURS(LSTI: 09U0-1103

WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-?7 28-33 34-40 41-47 48-55 GE 56 TOTAL MEAN(DEGREESI I WIND

N o.6 1. 3.7 2.6 8.1 4.9

NNE I 1 1.5 .4 3.0 7.4

NE .2 7 1.7 .3.i 6.4

ENE W . 1.7 .6 .4 4.6 8.4

E .4 2. 3.1 .2 6.5 6.8

(SE .6 ..6 .4 2.0 6.4

SE .7 . .7 1.9 5.?

SSE .7 1 3 .4 *4 2.4 5. 3

S 1.3 Z.0 1.3 1.1 .2 5.9 7.0

SSW .7 1 . 7 .9 1. 1 4 .4 7.5

Sd .6 1 .9 3.5 2.4 .2 4.5 8.8

WSW .4 1 ,9 4. 3 3. 1 .6 .2 10.Q 9.R

W 1.1 3.0 6.5 i.% .7 .4 16.1 Q.s

WNW I .9 1 1.9 . .4 7.0 8.6

NW .2 1 1 1.9 3. 1 1.3 7.6 11.7

NNb .6 1 . 1 1.9 2. C .2 S. 7 9-2

VARTRI ~ I 1.9 1.9 2.C

CAL" l/I/II//

TOTALS I I0., 2., 35.4 zl, 1.7 .s 100.0 8.6

.................................................................................................................................................

TOTAL NUMPER OF OPSERVATIONS: 543

E n / m m••NRNBNNN.Ni•I

40

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIkECTION VERSUS WIND SPEEDUSAFEIAC FROM HOURLY OBSERVATIONSAIR wEATHER SERVICE/MAC

STATION NUMRER: 06325 STATION NAME: ZIERIKZE" NL PERIOD OF RECORD: 77-ABO-86MONTH: JUNj HOURSELSTI: 1200-14CO

I WIND SPEED IN KNOTSDIRECTION I - 4-6 1-10 11-16 17-21 22-'? 28-33 34-40 41-47 48-55 GE 56 TOTAL MEAN

LOEGRES I I WIND...... ............... ;........;........6................3........................................................1........2.....

N I .5 2. 6 3.6 4.0 .3 11 .1 9.2

NNE c. .7 .2 1.4 P.D

NE .7 .3 .9 I.9 9.5

ENT .2 1.6 2.2 1.2 9.2 V.7

L .2 1.2 2.1 1.2 .9 5.9 9.R

FSE 1 .2 1.2 8.6

SE .. 7 .2 2.1 6.3

SSE 5 . 1 4 .5 2.4 ".4

S .9 I 7 .3 .3 .2 3,S 6.1

SSW ,3 . 1.2 1.4 .5 4.0 10.0

SW .2 7 1.7 .9 3.ti P. 3

65W SW.3 1 4 3.1 2.9 .5 .3 V.7 lo.s

W .7 1 .4 12.3 10.4 1.6 ,. ,2 26.1 11-1

WN6 I 4 3.1 3.1 .5 V.9 9.9

NW I 1.9 2.8 2.2 7.4 13.1

NNW , 1 1.2 2.1 2. 1 .3 6.1 10.1

.. . A i [ i.. .. ;..................................................................................... .. ; ...... .. ......RAVIVIEI 41.6 2.1

1OTALS 5.9 17.f, 37.2 31.5 7.1 .5 .2 100.0 9.8

TOTAL lUMPEP OF OPSFRVATIONS: 578

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQU-NCY OF OCCURRENCE OF SURFACE WIND UIRECTIEN AFRSUS WIND SPEED


AIR 6,ATHER SERVICE/MAC

STATION NUMBER: 0632s0 STATION NAME: ZIFRIKZEE NL PERTIOD OF RECORD: 77-94 86

MONTH: JUN HOURSILSTI: ISU-IOD,.. .° .,° ,. .,° .. ° ° , ,. . , .°o ,. ., .,. ,. . .. o .. °.. .. °. . . .. ° ° . , . , °. ° . . ° . = .. . ,. o . o ,

WIND SPEED IN KNOTS

DIRECTION 1 1-3 4-b 7-10 Il-lb 17-21 22- 7 28-33 34-40 41-47 4B-55 GE 56 TOTAL MEAN

DEGR5ES I I WINO

.N .2 .7 .5 . 8 16.2 . o.7

NNE 1 .0 .6 .8 .2 2.5 9.2

NE .2 .2 .8 .6 .2 1.9 9.2

ENE I .4 .4 1.7 1. 3 3.F 4.9

L .6 1.3 1.5 .2 3.7 10.2

ESE I." .2 .4 b.0

SE .4 A 1,.2 .7

SSE .6 .4 .6 1.5 5.4

S .4 1.2 .2 1.7 4.9

SSW .2 1 7 1.3 .6 3.3 7.2

sw .2 .6 1.0 .6 2.3 4.4

WSW .2 1 . ? 2.9 2. 1 .6 .6 7 .1r 11. 3

I .6 2.q 12.7 10.6 .2 1.3 27.9 10.1

WNW 1 4.4 2. 7 .2 A.3 9.7

NW I . 0 2.1 2.9 1 .0 .5 7.5 12.3

PN.4 .6 1 . n 4.2 3. 3 .4 9.4 9.6

CALM I/fl/il/fl /i,// l//li 1/1/ j/////// / fl//I//i I//, I/i Il/i/i/I I/i li/i/I/i I/i/i/i /1/I/i/i l/li/I

TOTALS I 4.6 14.4 40.8 34.4 3.7 2.1 100.0 9.8

OrAL NUMPE (IF OFISERVAtIONS: 9Z0

j.L,

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDp USAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATION NAME: ZICRIZE- NL PERIOD OF RECORD: 7-86p MONTH: JUN HOURSILSTI" IOO-2OD

1 WIND SPEED IN KNOTS

UIPECYION I 1-3 4-b 7-10 l1-lb 17-21 22-,7 28-33 34-40 41-47 48-55 GE 56 TOTAL MEANIDEGREES) I % WIND

N .5 5. .5 4.5 .7 20.8 ;:7

NNE .7 1 .0 2.6 1.0 .3 5.7 V.5

NE •3 1 1.0 .9 .3 2.6 7,2

ENE .3 1 1 2 1.4 .5 3.5 7.0

E ,. .7 .7 .9 2.6 7.8

F SF . .5 .9 4.2

SE 3 .2 .5 7.o

SSE •3 . . .2 1 .6 5. 1

5 ,7 .9 .7 .2 2.4 5.6

SSW I 3 ,. .3 .3 1.4 6.9

SW .2 5 .5 .3 1 .6 6.8

WSW .2 . . 2 3.3 4.2 1.9 .5 1 1 . 3 12,0

h .7 4 . 7 9.5 5 . 7 .2 21.0 9.E0

WNW .3 3. I 3.5 .9 .2 8.0 7.7

NW .2 1 . 4 2.6 1 .4 .5 .2 6.2 l0.0

NNW .9 2 . V 4.9 1.4 9.3 7.8

VAIBL . 2 1.0

TOTALS I 6.6 26.3 40.6 21.3 4.2 1.3 100.0 8.6


* lrl l ll mmm l IImn lmm nI n mn m

GLObAL CLIMATOLOGY BRANCH PERCENTAGE FRLOU-NCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEr NL PERIOD OF RECORD: 77-T89T-8NA6

MONTH: JUN HOURSILSTI: 2100-2300

o.o. ...................................................................................................................

I WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-Z1 22-? 7 28-33 34-40 41-47 48-55 GE 56 TOTAL MEAN

IDEGR-ESI I % WIND

.......................................................................................................................N 3.5 3.(0 4.4 1.2 .5 12.4 6.4

NNE 1.4 3. 0 3.0 .2 7.6 5.,7

NE 1.6 Z.A 2.8 .S .2 7.8 6.4

ENE 1.6 2.' 1.2 5.3 5.0

E 1.2 1.4 1.4 .2 4.1 5.8

ISE .7 .5 .7 7.0

SE .2 5.D

SSE ..2 ,7 5.0

S .5 1 6 .2 .2 2.5 5.4

SSW 1.2 1 . 4 .7 .2 3.5 S 3

SW .5 2. 4.4 .7 .5 8.5 8.5

WSW .5 4 . 4 5.5 3.9 .7 .5 15.4 9 .2

W I 12. 3.f,

4.4 1.2 .2 10.4 7.2

WNW 2.5 l.F 1.8 .5 6.7 5.1

NW .7 1 .9 .7 .7 4.4 8.2

NNW 3.7 2. 1 1.2 .5 .2 .2 7.8 5.5

.............................................................................................................VARIABLE I 1.4 1.6 1.4

TOTALS I 21.4 32.3 32.5 9.9 3.0 .7 100.0 6.7

..................................................................................................................

TOTAL NUMBER OF OBSERVATIONS- 434

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQU'NCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE NL PERIOD OF RECORD: 77-8b

MONTH: JUN HOURSLSTI: ALL..o..o .o, ..*.o ......oo .., ..o ..oo ...*o ...o.o.o*. .......... ........* .....o .......................................................**

IWIND SPEED IN KNOISDIRECTION I 1-3 4-b i-ID l-l 11-21 22-T7 28-33 34-NO Ni-N7 49-55 GE 56 TOTAL MEANIDEGR:ES I % WIND

.... ......... .... ............................................................... ........................................N .9 2.2 4.M 3.0 .9 10.9 P.R

NNE I . 1.? 1.4 .4 .1 3.7 6.7

NE .7 1.2 1.7 .5 .0 4.2 6.9

ENE .9 1 9 2.6 .8 .1 6.2 i .1

E 1.1 1.5 1.8 .8 .2 5 . 7.0

r-SE . .7 .5 .1 1.P 5.5

SE .1 .6 .9 .1 1.4 5.9

SSE .4 .7 .9 .1 1.6 5.5

s .7 1 3 .7 .3 .0 3.0 6. 1

SSW .5 1 .6 1.3 1.0 .1 9.6 7.7

SW .5 2. 2 3.0 1.5 .2 .2 7.3 8.2

WSW .5 2. 2 3.6 3.0 .7 .3 10. 3 9.8

W 1.0 3.0 7.0 4.8 .5 .3 .0 16.6 9.M

WN6 .9 2 C 2.9 1.9 .2 .3 7.4 5.2

NW .6 1 1 1.6 2.2 .9 ,1 6.S 13.6

fINW 1.1 1.° 2.9 1.6 .2 .2 .0 7.0 8.6

VA.A.L .... ....C 1.S 1.9

CALM Il/I///I//l/ /I// // /II l//I/I///II///ii/I/ // /I/////////// ,/, * 3 /11111

TOTALS I 12.6 25.2 3S.2 22.1 3.7 .9 .0 .0 100.0 8.2

TOTAL NUMBER OF OBSERVATIONS: M055

AE

-4!

6LOBAL CLIMAIOLOY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SUQFACE, WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 SlAIIN NAME: ZIERIKZE NL PEI0D OF RECORD: 80-86MONTH: JUL HOURSILSTI: 3000-020i

WIND SPEEO N KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-?? 28-33 34-40 41-47 48-55 GE 56 TCIAL MEANIDEGR ES) I W hIND

...... .. ........................ . .. 4.4 S.4

NNE .6 2.4 1.8 5.' 5.7

NE .4 3.n 1.4 4. -. 6

ENE 1.4 3.P 4.4 .2 9.C ,..

L 1.4 3*T 2.0 6.4 S.2

ESE I 1 . 1 . .2 2 .q .7

SE .2 .4 .6 1.2 6,

SSE . .6 .8 7.5

S .6 1.2 1.2 .2 3.2 6.1

SSW Z.2 2.4 1.4 .a 6.4 5.4

IS 2.2 4.4 4.D 3.6 1.0 15.6 8.3

WSW j .4 3.2 4.4 2.2 .6 11.8 S.1

W .8 1.4 .4 .4 3.q 7.6

WNW .8 1., 3.2 ,a 6.4 7.2

NW 1 .4 .4 3.4 1.6 6.4 4.0

NNW 1.2 2.f 2.2 1.0 7.3 6.6

VARIABLE 2.2 2.2 1.3

IOIALS 20.4 31.5 33.3 11.2 7.0 100.0 6.5


6L0AL CLIMATOLOGY RR8 ,.CH PERCENTAGE FREQU NCY OF OCCURR riCE UF SURFACE WI J (DIR '.lON VERSUS hIND SPE..

USAFTIAC fROS HOURLY8 oB5s!9V8116ON

AIR W(THER S[RVIC[/IPAC

STTION NUMPER: 0637 ,5 STAT 1Ch NAME: ZPFRII( 1 [8 NL N11 00 Of RECOR0: 8fl-86M"0hlm: JUl HOURSILSTI: 0oOn-OSDJ

WINO SPEED IN KNOTS

OIPECIOf I 1-3 1-b 7-10 li-lb 17-21 22-27 24-33 3-N0 41-1 4-55 Gf 5b T(8L MLAN

1(fR[[ Si I I wINO

..........................................................................................................N I 2.5 z. I 2.5 ,Z' 7.8 "-.6

,NE. . .2 .4 1.6 6.6

NF 1. 3.S 1.4 .2 6.4 5,.5

F r 1 .4 2.' 1.6 . 5.

f .6 2.9 1.9 .2 6.6 5.5

F 1.2 2. 1 .2 3.5 3.

SE .6 .6 .2 1. 6.

5SF .6 1 2 1.0 2.7 6.2

S 3.2 3. 1.0 3.7 b j

SSW 3.2 1.9 2.7 2.1 .2 R.? 8.0

SW f 1.1 N ? 4.3 3.? .8 14.b 8.6

WSW 3.0 N . 2.9 1.2 9.5 b.b

1 -? 2 .=

2 .5 .6 .2 6 .8 t, .

WNW .2 1. I6 3 .6 1.9 6.2 7.5

N6 1 .6 , 2.1 1. 6 .2 2 b. 8. .

NNW 1.6 2.. 1.9 . 6.6 5.7

VARIABLE 1 1.6 1.6 " .5

CALA 1// // If// /e f 0, 1.4 /Il

T1AL$ 21z2 35- 27.8 12.6 1.6 .2 300.0 6.S

107AL NUMBLR OF 0BSERVA IONS: 686

b--

GLOiAL CLIMATOLOGY BRANCIH P119C(NY AGE FPL 01J:NC or OCCURE NCE U SURF A197CT IN U.91 IRE1.( I10N1V5I351.19WIND5906USAFIIYAC F004 HO0URLY OBSERVATIONISA1R WIAI1IEP SERVICE/PL*3

STATION NUMBER: 063253 SIA I ON N A" E ZIf RIKII NL PIL'OC , I REC0R0: l-993mIN Jul H0UPSI151l: DbUfl,-0fl

WIN0 SPEE') IN ,'.i,1LJIRLCTI.JN I 1 4 -6 7-10 11-lb I 7-21 Z 2-7 7 29- 5 341--0 1 -4 41a -57 5 0 7, 6 10101 "[A%(0FGPE[S1I I W190

N 1 2.1 3.2 1.6 .6 7 .4 4'

90 I .8 1 . I .9 I291 6

(NE I .9 1 .' 2.9 .9 .9

I NE I .9 1. 2 .54 2' ~.0

55.7 36 . . 9 2.

SS I .6

1 .2 .9 *' .8 5. .

5£ I 3 .6 3.9 3 .2 1 .9 1 1. 9. 3

WSW ~ . 3.6 1.9 .. 4 7.6

W g 2. 2. F 3.2 7. 1 .2 1 ' 1.6

WNW I 1. if Z. A 2.2? I. 7 9. 2 1. c

Nw I . . 2.2 .9 5 3,S .

NNW I 1.6 1 .7 ?.7 A0 .2 70 E

TOTALS ?.2 I 3.?1 3 1 .1 12.9 2.! I1.fn 6.9

TOTAL NUMBER OF OPSERVAl1ONS: 633

do~

LOBALLI CM31AT OL6Y 1WA1CH PE QCiNY AG FRt QU: NCY OF OCCURRENCE OF SURFAC( W'%D Ul3"IC7'ON VRt$?U, '.3WIN SP[IUU ,AFLI AC Fo0 R OURLY 0.SRQVAI CN%AI.1 .3ATH9 S(RVICL/MAC

I AT|UN NUP.IR: O A'T,'J OAN|I NAM[7: , R ' k It NL Pf0101' Of RLCJPO.: 77-70B,9 -mb7qrHn TH. : JUj

L MOURI ' L | : L)90lq- [ 1 1.1

I WIND SPEC) To KNOTSI3377FC13I O I 3-7 1 -f, 1- Ir I1-I b 7-23 2A- 1 -S1 3t$-. 4 '.-4i. ' . -7 0r Ssb 3CIAL -E i

I70 ,P I' I I IN.,

.. ... *.... . ........ . ...... . ......... ., , .. ,* .. .* . .... ........ .. ........... ... ...........

h7 .1 3., Ii. 3.7 "I.• 7*."

IN 9 *" ]*r |*, 3. 7 , 7*'.

iF, I . I • ' . .. 3 , 6 .9

"7 . .. 3.2 . " '7.7 1',

5 .1 .• • 3.7 7, .7 .,3 7D.1

3~ .r' 1.2 I.7 .11 '*1 .

69.' I .'. ." 6.7 3 ,.'f . .. 7.7 9.8

............... '...,1.

44

I

II

I

,, ** .* ,. . ,. . .. , * *. . , ,, ,. ., ,. ,., . .,. .. , ., o,, , •., ,, ,, ., . . .. , . .. ,,,, * , ,, **.o , ,,,° °,,

1O/I 0UP[ 9] 4RF V ID S 1 0

WlwI1 . l

l .

LLJA L (1L3IM1110 A 9019 R c1 PLC ~tNI AGE P QU C V Of OCCURRE7NCE Of '5UZiCE WIN" 016- L YILP V1RSUS W I NU SPI( f 1USAF I c FRO" HOURLY ORSt00Al3C'bSA I?0W .A TRP %I 0VIC11"3h(

STIATION MUMOPR: O' .", 1 S 7.A 111 A ME: lit32[ Rik L p I f)[ Of ? bC ORD 17-16,6--b

07763,, jut1 HOUD7JISII:I 11L - -1

I WIND SPIE3 IN AOIS3

tI E 1 ONrS I I - 64- In 1 - 6 12,- ,-3 -,1; ft7 4 S r b f l t " A

1D GI %$ .- 3.%. 6. 1 N

.. .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . ..... .. .. . .. .. .

SW I ~ 11 .9 . . .

SW I .~ . 2.2 ?.U . 2..

I .5 3.6 0.9 .5 .0 6' .

WNW I ~ 2' 3.6 3 .7 .6 49~

S0 1 .~33 37 .9 A. 23

NNW I '' 33 2. 3 .2 1* ..

A1A177I . 0 27

CALM flit//I/Ill/I/ilI//IIIIIij//l/i//Ii/i~j/i~~/iiji

TOTALS I .4 19. I 39.1 31.3 4.7 .3 .2 3z~o.r 9.%

TTA NUMMIR OF 0n'776VA310N5: b%1*

* Ih P I I I Nf 4 l/ 66urt S PI

-

p 1I01C t/~q+:OfS.h5 66/o I 111-: .I-IC 1119 17I 2.7 .91 h9-66 LI -41 49(-S.J Ut Sb 77*6 p1

f 90-t 1S I Io 1 0/%! S F I

... Io* . . . o .. i° . . .. ° . . . . . . . . . .•. . . . . . . . . . . . . . . . .o~... .... . ..... ( .. . .. .. .

'96 I .I** IPt? . .2'

p~ ~ ~ ~ ~~~A (1,~ l~ Q If A 1+, .'( Rllt I)-+ , ,1 ."*+ IIO +l4 #+5 LI b III

I ( t A I .7 41 17 9 -.o . . ... t .............

d .. 1 1. 7 . .s

751 .. •7 .2" '+? + *6I c 14- 4 . -t . .A p A%

I .i I.. .. I, ..

.... . . . ... . ..

.. 5m ... .9+ .,, •- . .2'

I .• 2 0 ' ' .l ... .9. .7 I. o .W.V .~ ~n 23 29 .9 .

ft I"* ' I0.! 7.. 1.9 .2 2. 2.?*

*9666 • I * . ..'4 . 9 9 .9 9. 9*

I, l..' I.' 2.9 7. l , .

.9 I .......... .. .... 1 . .1.. . 2..... ...... 76. ...... ....... ...... *.7 ......

v Fs.itnl r I . .,1 . o,

{.m e" I I I/IIIIIII / I I/l//l/ / I/I / / /I / I / / #lIII1// I I/ II/IIII / I // I/I/I/I I/I/I i/ 0 tiIl

I0IIS I A9, . .I- r 39., 91. 5 ' IO09.1, 9.9

• ,. .. o........... ... .O.Oo, .o . .. .. . .. . , .. . . .. .. .. .. .. .. .. .. ...... . , . . .. ., .. .. .. .. . . .. .. .. .. .. . .. . .. .. .. ... . *. . .. ....... .. ..o,.o..

IlAt IEnptR of OS(1l9.u66 910 %S A 9766

* 6..M

CIA

.10,AfI (LJI"I ALObW G AR (A Pt;tIM9*I( GI IJU %L4( Of O((UpBREC t uf Su99*AI I9'1 o IWO( IION VI' .j I9 SPillotsASt F A0C 04OUNL! Sf08V611f *W

*t910 h %Up-"(lq: LINt.. 1 19*ll494 946! 19' Rt961 it L P4'I OU OF Pl(gcJ0: 9916-1

I 1INO SPEE) 194 AhO9

V|V9 ( ION I I -I b l- 1l 1 1 t16 i -1 I '-,? p'R-7Iq 34-%O %I-IF 944-49 GI 'b ' I IA I - *'I of0 a , ! 9 I 1 1l6 L,

.......... . ... . . ........ .......... . . . ... . . .. . ... ..... . . . ................... .. . ......... . . ......... . ...... *

, I . ' . ,.7 9. 94." S."

'9 I . S I . .' .9

I .b. 9.

WART Ap f I

tnlli. I 1 19.2? . h .7 . .l* 2 1 n.

. .. .9' I' . .. ... . . . . . .* .

I n I ." .7 A. 01, .1 6A 7 O 0 SF V ,I1

9096.... , 9. .. ° 9.".. o., . 96.. 2 .. .. . . . . 94. .. . ,, ..94 ...2 , .... . .9J... .fl.. , .. . * .... .7. . .

909*1 94U9~!9IO (9F ORSFSW*91094%: 9,69

--- am .4mmmi matm m

6L,ifLM CLIMATOLOG.Y PRAmw Cm PLR(.LtNAIGt fPf'AJUliCV Of OC[URRENlCE Of SURFA4t .1INL UllfTSIO VIRSUS .11.0 Sf[tu

AIR RI AIIW6 $(RRI(I/M11*

I111 1UPIPLl: L&ll".) SIAlIn -s&.it: 1176511lt2 41. 1~ IL Of 4 c ORO: ?-6B-em(% TH Jut 40URS~ILSI: ?IdLM-73i)

1 01,00 SPEU) Iii KNOTSUI14tcII1 IU I - I %-b Il~ I I I 17-2 1 27-? 1 28-33 301w1 1 -4 1 1.1SS (.5 I ITA L -I ANI OF up~ I SIt W O

fi4 4 2. . .16l

I .%I7 *f .

I .. 1.7 .9w IA .6

b.

. . .1 . . 1 . . ...... . .............................................. . . .. .....

TCTL7 I a1. II. S?. 111 4.6 .' I0.1 t. S

TO f1. 1UMPL R Of OPSI 6VA IIONS: 1 3

40

A4a.0 CLIMATL0OGY PR*4Cm P~qC[N.7*bf FPLQIJ:9t3 OF OC(UPRENQt OF SU9FAC( .LIPdD 1J1911IIO V(RSUS WINDl SPE(Z

AIR wfATHER SE991CE/MAC

STATION NUMRER: Ob5?5l S I AINATI~ AM4(; Z1196?t- 14L. P1~ I 9 911.of 0930: 17-e6MONTH: JUL. LOUP6ILSTI: ALL

DIRECTION 1 1-3 4-6 1-10 11-16 11-Z1 22 ZA2-33 34-43 41-4? A.R-S6 bE lb TOTAL. P3*

NINE I 6 ~1.6 .6 .0 . ?

Tor S . 1 .7 1. *2 .* 6. 3

t4 ME .6 I1 2.S . b~ 6P

t .9 2.(' Z.2 .S .0 b.9

ISE .6 1 . . .

S I 9 14 6 . 0 .f

56 I4 24 n.' I. .X .143

SW 2. .9 1.9 .U .3 1. 9.0

4 Sw r 1.3 7. 1.2 I. 1 r. .

5 ~ I .9 1.9 .S .11. 7 9.3)

99*n1 9. 1. . .

3096 3 3~6 7. 4.6 11.0 2. .4) n1 . Jl' 7.K

IDIOT. 4139393 OF 096198* 7146NS 4629

61014* B CLIMATOLOGY BRANCH PERCENTAGE FRELE.NCY or OCCUR4RE NCE OF VSURF AC E W1449DIRECTION VERSUS WIND SPEED

UAFEIT C FROM HOURLY OSVRTVATIONSAliR WATHER SERVICE/MAC

STATION NEIMPER: 063TZJ STAT ION NAME : ZIERIK ZEE NI rcIioo Or RECORD: 7A.80-86MONTH: AUG HOURS(LSTI: 0DD0-02OC

AIND SPEE) TN KNOTSOIITLCTICN I I- 4-6 7-10 1Il-1b 17?-21 22-?? Z 43 3 IN-NO 4 1-NT7 48-55 GE 56 TOTAL MEANIDEGR-rESI I IT WIND1

N I . 7* 35 . 5.4 '4.6

NNE 7 2. Z.6 .2 S.9 6.?7

%F I . 4. 2.4 .2 6.0 5.6

E HE I 1. .. A I. 1 .2 S.4 4 .9

E 7.8 1. .7 6 .0t 3.9

rS s[ A .1 .6 .2 5. 4.9

SE I .7 .7 .6 .6 .2 .2 T. 9 6.9

5.SE I .9 .i. 2.1 .2

s .9 2. .5 N.Y 3.

SSW I 173. 2.2 .7 .4 .2 6.2 8.2

SW 3 .9 .4 4.5 7.S .2 16.S 9. 7

WSW I .7 2. 2.s 3.0 .7 .4 .2 9.6 9.4

1 9 . .3 3.5 .6 5.2 9.5

WNW* .6 1 . . .6 .23. 7 8.9

NW I .7 .4 .9 .4 1.4 5.1

H4 NW 2.4 . 7 1.5 .2 5 .PF 4.7

VARIARLF I 2.4 2.4 1.0

TOTALS e i4.5S 28. 1 25.5 15. 5 7.1 .9 .2 100.0 6.7

TOTAL 404419 Of OBSERVATIONS: 534

bLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQU:NCY OF OCCURRENCE OF SURFACE WINDt UIRCT.TION VERSUS WIND SPEED

USAFETAC FROM HOURLY OBSERVATION'


STATION NUMBER: C63250 STATION NAME: IFRIKZE:_ NL PE'IOD OF PECORD: 78,80-86MnNTH: AUG HOURSILSTI; 33n-050G

.........................................................................................................................WIND SPEED IN KNOTS

DIPECTION I 1- 4 N-6 7-10 11-16 17-71 27-27 28-33 54-40 41-41 48-S5 GE 5b ITAL MEAN

(IEGR.ES I I WIND

... ,.==, ........-.....................................................................................................

N 2.S. 22 1.6 7 4.9

NNE .8 2.0 2.0 .8 S.s 6 6.3

NE 1.2 3.1 2.2 .8 7.3 6.4

ENE 2.4 . 1.6 5.5 4 .9

L 3.0 3.C .6 6.5 3.8

ESE .6 2.fn 2.6 8.3

SE 1.2 .8, .6 2.4 4.8

SSE I . 2 .6 * , 2.9 3.3

S 1.6

1. 4 1.6 .A S.3 6.3

SSW I. l . A 2.6 ?.0 .6 .2 8.9 P .6

SW 1 .0 3 . 0 4.1 6.9 Ic.. 9. 3

WSW .4 . . p 3.3 1.1 .9. 1 9.4

6 .8 2 1.0 2.1. . . 6. 7 9.9

WNW 1.6 1.7 1.0 .8 .8 4.5 6.2

NW I.I

.4 .8 .2 .2 3.3 6.0

NNW 1.? 1.8 1.0 ,6 8.1 6.3

888A1L1 7.6 2.6 1.1l

CALM I //II/////IIIII ///////U///I//// /////I//iiI//II/I/I//////Uh///II/I/I//I/II/I////I/// 2.2 l/llll

TOTALS 23.6 29. 28.8 17. 3 2.0 .6 .4 100.0 6.8

• . . . .. . . . .. . ...........,, ,........,, ,.•o , . , , ,° . .,,. , .. ,,.,,*.., .... .. ...., , .., . .. .. ,. ..... ,, ........o,, ,,o, ... .. ....

107AL NUMBER OF OBSERVATIONS: SU1

No mm

GLOBAL CLIMATOLOGY BRA1NCH PEqCENTAGE FRLOU-NCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBLR: 063250 STATION NAME: ZIERIKZE- NL PEIO OF RECORD: 77-86MONTH: AUG HOURS(LSTI: 0600-0800

WIND SPEED IN KNOTSDIRECTION I 1-3 4-b 7-10 Il-lb 17-21 22-?7 28-33 34-4Q 41-47 48-55 GE 56 TOTAL MEANDEGR:ES3 I I WIND

N 7.2 2.? 1.7 .6 6.6 S.9

NNE 1 .1 1 7 1.5 .8 S.1 6.7

NE 1 .7 1.4 1.7 .9 5.7 6.3

F 1E I I .S 1.1 4.2 4.8

L 2.9 2.9 1.4 .2 7.4 4.7

FSF .9 .9 l.A 3.4

SE .3 .1 .9 3.2 3.T

9SF .9 1 . 1 1.8 .2 6.0 6.

S 1.5 2.4 2.6 .9 .3 4 .2 6,9

SSv 1.4 1. 3.7 1.5 .3 9.2 7.S

SW l.4 2. 3 4.9 S.2 .2 14 .2 9.C

WSW .6 1 . 7 2.2 2. 0 .3 8.

w ,3 1.q 1.5 2.6 .5 6.5 11.1

WNW 1 . ] 1 7 Z.B .9 6.2 7.6

N I 3.4 .9 .2 i.9 4.8

14NW ].7 I 1 l.4 .9 S.I b.5

VRTIABLE I 1.9 1.9 1,?

CALM f/ / f/ l/i I 1 // // 2.0 /I/

TOTALS I 2,.7 27.4 29.7 16.8 .9 .5 100.0 6.8

'a NI411IP OF ORSFRVATIONS: 649

-. , •AD-

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOU- NEY OF OCCURRENCE OF SURFACE WIND DIREC7ION VERSUS WIND SPEED



STATION NUMBER: 0E3253 STATION NAME: Z1!RIKZE" NL PERIOD OF RECORD: 77-78,8O-RbMONTH: AUG HOURS(LSTI: 0900-1100

.................... ................... ................... .................... ................... ...................


DIRECTION I I-3 N-b 7-10 11-16 17-21 22-27 28-33 34-40 41-41 48-55 GE Sb TOTAL MEAN

IDEGR FSI I 2 WIND

..... .................................................................................................................N .6 .4 3.6 1.6 6.8 8 5

NNE .6 1.4 1.6 1.6 5.2 8.1

NE .5 .9 2.0 .8 4.2 7.6

FNE .6 1 . 6 3.8 .3 6. 3 7. 1

E l.1 .6 2.7 .2 8.6 6.7

ESE .9 A .2 1.9 3.8

SE .3 1.4 .6 2.4 SI

SSE .t 1.6 1.9 .2 3.9 6.6

S 1.6 3.6 3.6 1.6 10.4 6.7

SSW .6 1 . 3 1.1 1.6 .3 4.9 8.6

SW 1.4 3.0 3.0 1.1 .2 .2 8.8 11.4

WSW .6 2 . 0 2.7 2. 7 .3 8. 3 9. I

w .5 3 .7 4.1 3.8 .8 .5 12.6 10.3

WBW . 1.b 1.3 2.7 5.8 9.3

NW .5 .9 2.4 1.7 5.5 8.8

NNW , q 14 3.6 1.4 6.83 8.3

VAVIABLE I 1.4 2.4 2.8

TOTALS 1 O.9 2 . 5 38.1 23.r 2.S .2 .6 100.0 8.3

TOTAL NUMBER OF OBSERVATIONS: 63b

k..

ULOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063253 STATION NAME: ZIERIKZEE NL PERIOD OF RECORD: 77-78,80-86MONTH: AUG HOURS(LSTI: 1200-i4O

o.. ,, ,,,, , ,. .o. ,.. , . • .. ,. ,, °.° °° H .° ... ..... .., .o. , ... o . , ,, , , . , , ., , , , , ° . ,° . , . ,

W WIND SPEED IN KNOTSGITECTION I 1-3 1'-6 7-1D 11-16 17-21 22-?7 28-33 314-4O 41-47 48-55 GE 56 TITAL MEANIDEGREES1 I WIND

N .2 *O 4.6 4.8 3 10.8 1{*,

NNE .3 .3 .9 .6 2.2 8.3

NE .6 3.7 .3 2.6 8.1

E NE . .9 1.5 1.2 3.8 8.7

E .8 1.1 2.0 .9 4.8 7.7

LSE .2 .2 .5 .8 5.8

SF .3 .8 .3 1.4 S.4

SSE .8 3 ,? 1.2 .6 5.P 6.1

S .8 3,- 2.0 1.5 7.8 5.8

SSW °5 . 9 .9 1. 4 .3 .5 14.5 Ia.7

SW .8 1 2.3 2. 3 .5 .3 6.0 14.6

WSW .6 .9 2.2 2.2 1.1' .5 .5 8.5 13.0

W .6 3.S 7.5 7. I 1.1 19.8 8.8

WNW .2 .9 3.2 2.5 .3 6.9 10.2

NW ,S 1.1 1.5 1 .1 .3 4.5 8.1

NNW .2 1•? 3.7 2. 3 .2 7.5 9.s

VARIBLE 2.32.3 2. 1

TOTALS I 8.9 21.1 36.2 27.5 4.6 1.2 .5 100.0 9.2


- ulmm l mlun lnl~l. ull

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQU-NCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIND SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONS

AIR WEATHER SCRVICEIMAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEE NL PEPIOD OF RECORD: 77-78,80-RbMONTH: AUG HOURSILSTI: ISU-1700

WIND SPEED IN KNOTSOIRECTION I 1-3 4-6 7-10 11-16 17-22 22-p 28-33 34-40 '1-A7 48-55 GE 56 TGTAL MEANIDFGREESI I % WIND

... .. . .. ... .. . , .. . .. .. 20.. .. 15... .. :8.......................................................:7.............

N I *2 .! 6.0 7.5 .815.7 10.A

NNE .2 .3 .5 .5 .2 1.6 ?.2

NE .2 .2 .2 1.7 6.0

ENE .I 3 .1 .5 1.. 8.

E .7 1.3 2.14 1.3 5.7 7.7

ESC ,5 .3 .3 1.1 4.3

SE .2 1.E .8 2.4 S.3

SSE .3 1.1 .S 2.0 5.3

S 1.3 1. 3 2.3 1. 2 6.0 7.3

SSW I 3 .0 .5 .8 .5 .2 .2 3.4 11.2

SW I .7 .8 .5 2.4 12.0

WSW ,1 .5 1.0 2.4 .8 .5 5.5 13.1

W 2.6 9.1 8.2 1.3 .5 .5 22.2 11-2

WNW 9 2. 5.7 2.6 .2 1 1.7 8.5

NW .8 2.0 2.2 2.0 .2 6.0 8. 7

NNW .' I 6 3.8 3. 8 .2 4.5 9.S


IOTALS I 7.0 27.4 37.0 31.6 4.6 2.2 .7 200.0 9.6

..............................................................................................................................................


--.

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQU--NCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMMER: 063253 STATION NAME: ZIFRIKZE- NL PERIOD OF RECORD: 77-86MONTH: AUG HOURSILSTI: IRUO-2300

WIND SPEED IN KNOTSDIRECTION 1-3 4-b 7-10 11-16 17-21 22-?7 28-33 34-40 41-47 48-55 GE 56 TOTAL MEAN

(EGRrES1 I 2 WIND

.............................................................................................................................................N 1.7 2. 8 7.1 4.1 15.7 8.3

NNE 1.3 2.8 2.8 1.3 B.1 6.9

NE 1.0 .9 .7 .6 3.2 6.4

fNE .9 1.2 .4 25 4 .9

E 1.0 1.5 1.9 4.4 5.6

ESE .3 .1 .1 .6 3.S

SE .3 .4 .6 1.3 S.7

SSE .4 .6 1.0 2.0 6.0

S .6 .7 1.7 .3 .1 .1 3.6 9.0

SSW .3 .7 .6 .3 .4 2.3 13.3

SW .3 1.0 .7 .9 .4 3.3 9.A

WSW .4 1 6 2.8 4. 1 1.6 .7 1 1.2 II •8

H 1.5 4. 9 7.3 3.3 .4 17.4 4 .0

WNW .9 2.S 2.3 1.0 6.7 6.8

NW 1.0 3.? 2.3 .9 .1 7.3 6.7

NNW 1.3 3. 1 2.5 1.9 8.7 7.1

TOTALS I 14.4 27.9 34.0 14.9 3.1 .9 .4 100.0 7.9

o.. o. .o. ... , .. ,,..............o....oo ..... ,.. +........, ... , .... .. o ..... o . . .. .. ,. ...... , .... .. ..o..o.. . oo.. +°oo

TOTAL NUMBER OF OBSERVATIONS: bA8

-J

GLObAL CLIMATOLOGY BRANCH PERCENTAGE FREQU-NCY OF OCCURRENCE OF SURFACE WtND .IRECTION VERSUS WIND SPEEDUSAFETAC FROI HOURLY OBSERVATIONS

AtR WEATHER SERVICE/MAC

STATION NUMBER: 0632SJ STATION NAME: ZIERIKZE_ NL PERIOD OF RECORD: 77-78,80-86M ONTH: AUG MOURSILST): 2100-2300

~~~.... ........... o.o.........,...............o.............o.... ......... ,...., ........ , ................. ............ ,...

WINO SPEED IN KNOTSDIRECTION I - 8-6 7-10 11-16 17-21 22-?1 28-33 34-40 41 -Ni 8-S GE S6 TOTAL MEAN

IDEGRIESI I WIND

N 3.3 2.0 2.6 .5 8.4 55

NNE 1.3 4.4 3.5 .4 9.5 6.3

NE 2.6 2.? 1.6 .4 6.8 5.1

ENE 1.8 2.4 .9 .5 5.7 S.0

E 2.6 2.2 .9 5.7 3.8

ESE 1.3 7 7 .9 .4 3.3 5.7

SE .S .4 .2 .2 1.9 5.9

SSE" .2 .4 .5 1.1 6.2

S .5 1.1 .4 .4 2.4 11.0

SSW .7 1 . 5 .7 .7 .4 .2 .4 4.6 10.4

SW 1 2.0 2.6 3.7 .4 9.7 9.3

WSW ." 3.p 4.0 2.2 1.5 11.7 9.3

I i, 3. 3 1.8 .9 .4 7.9 6.7

WNW I .6 1 . B 1.3 .2 .5 .2 6.6 6.3

NW 2.11 1 1 1.6 .2 .9 S.4

NNW Z? 1.1 1.3 8.6 4.6

.... VAI BL I ..... 1.. .................................................................................... A 1..... 0.. .....

TOTALS I 26.? 30. 2.5 10.6 3.1 .O SE 100.0 6.3

II

bLO!3AL CLIMATOLOGY BRANCH PERCENTAGE FKEOUNCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WIN[ SPEEDUSAFETAC FROM HOURLY OBSFRVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATIO. NAME: ZIERIKZE- NL PERIOD OF TECORO: 77-RMONTH: AUG HOURSILSTI: ALL

WIND SPEE) IN KNOTSDIRECTION I - N-6 7-10 11-1b 17-21 22-. 7 28-33 3N-No 4I-4? 48-S5 GE 56 TOAL MEANIDGR ESI1 I WIND

N . . . 3.7 . .6 .1 9.6 .2

NNE .8 1.9 1.9 .8 .0 S.3 7.0

NE 1 .1 1.8 1.5 .5 N.6 6. 3

ENE 1.1 1. 1 1.5 .4 N.N N.?

E . 1.8 1 8 1.6 .3 5. 5.4

ESE .7 . .3 .1 1.9 N .6

SE . . .6 .1 .0 .3 1 5 . 7

SSE .6 1. 1 1.0 .2 .0 .3 2.9 6.2

S I 1 . 1 2.0 .q .1 .0 6.2 6.7

5SW ,3 1 1.3 l.4 1.2 .4 .1 .1 5.4 9.2

SW .7 19 2.0 3.4 .5 .1 0 9.2 9.1

WSW .5 1 R 2.6 2. 7 .8 .3 . F. 7 10.5

W .7 2.9 4.4 3.8 .6 .1 .2 12.7 9.7

WNW .;1 I.7 2.4 1.3 .2 .r 6.6 8.1

NW 1.1 1.8 1.6 .8 .1 5.1 7.0

NNW 1.1 1.6 2.4 1. .0 6.6 7.5

CALM 1.3 /1/////II//III//I//I/#'///II/I//IiI///// //////I/I/I// 1,3 /.//I

TOTALS I 16.8 25.7 31.7 20.5 2.9 . .5 100.0 7.8

TOTAL NUMPER OF OBSERVATIONS: qzq

GLOLAL CLIMATOL06Y BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND OIPE(IKON VERSUS i.IND SPEEDUSAFETAC FROM HOURLY OBSFRVAIIONSAIR WEAIHER StRVICE/MAC

STAIION NUMBER: 063253 STATION NAME: ZIERIK E_ NL PL0oiOD UF RECORD: RD-86MONTH: SEP HOURSILSTI: 003-0200

........... ,..............................................................................................................

I WIND SPEED IN KNOTSOIPECTI'N 1-3 R-6 7-1D 11-16 17-21 22-?1 ZR-3 3-N0 41-4 48-55 GE S6 TETAL MEANIDEGR.ESI I I WIND

.. .. ........... ...... : ......+ ,,, , .. .... ..o........ .... ... ., . ,......... +....,,........... •,., .. ,, ..... . . . . . . . . . . . . . . .

N I .6 .7 . 1.7 4.7

NNE I .1 1. 3 .2 2.6 4.4

N-

1.5 2.2 .9 4.6 4.9

HNE 2.4 .q 1.7 5.9 4.7

E 4.0 2.9 .4 7.4 3.3

r SE 2.6 1 1 .4 4.0l 3.6

SE 1.5 2.2 z. 4.6 4.4

SSE .6 2.2 1.1 6 4.4 6.3

S 1.1 3* 1 1.5 1. 3 .2 7.2 7.0

SSW I 1.5 2.2 2.4 1.5 .3 .6 .2 9.0 9.4

SW 2.2 3.4 6.1 5.9 1.5 .2 19.7 9.5

WSW .6 3. T 1.7 2. .2 .7 8.8 9.0

W .7 . .7 l.A 1. .4 .2 5.7 l4.7

WNW .4 1 . 1.3 1.6 .7 . .6 6.1 12.7

NW .6 .9 .4 . . 3. 1 9.4

NNW .9 .2 1. 1 14.3

VAI!ABLE I 2.6 2.6 1.1

CALM /// /// // / / // // //// / //// 2.6 /1////

TOTALS 23.2 29.7 19.5 16.9 S.D 2.4 .9 100.0 7.6

TOTAL NUMBER Of OPSERVATIONS: S44J" L.

LOHAL CLIMAIOLOGY BRA14CH PERCENTAGE FREOU-NCY Or OCCURRENCE Or SURFACE -I'JU UlIRCI ION VERSUS WIND SPEEDUSAFETAC FROI HOURLY OBSERVATIONSAIR WEATHER SERRIC,/MaI

STATION NUMBER: 063253 STAT I ON NAME : ZIERIKE- NL PFRIO0 OF RECORD: 6C-RbMnNTH: SEF, HOURSILSTI: 03OV-05[O

| 411D SPEED IN KNOTSOIPECTION 3 1- 4 9-6 7-10 11-16 17-21 22-7 28-33 34-9 41-47 40-55 GE 5b TOTAL MEANIDEOGRLESI I S bIND

N I .6 .6 2.1 3.2

NNE .9 1. 2 1 .9 3.9

NE .7 2.1 .2 5.1 4.6

•TNE I .7 1.9 .A 4.7 4.2

. .S 1,.N 9.7 2.9

EST I.9 ..! .2 9.3 3.8

SE 1 .1. 1 . 1.0 2.9 4.9

SSE I .6 ,. 3 1.9 5.A 5.2

S .4 2. 1 2.9 1.9 6.7 7.7

SSW I , . 3 3.7 2. 7 1.9 .2 .2 1 .1 9.5

SW 1 . -. .5 3. 9 .8 .4 .4 15.3 9.7

WSW 12 I 7 1.9 2. 3 b b .2 8.s 1O.

I 1.6 e7 1.0 -. 1 1.7 .q 7.9 12.5

WN W .5 lI.? 1.2 2.5 .4 1.3 7.9 11.8

NW 1 .2 ." .41 1. 2 .2 3.1 7.3

NN9W I .1 •.6 .9 .9 2. 3 5.9

RARIARE I ,2.7 2.7 1.1

TOTALS I Z9.6 21 . 7 19.8 16. 7 5.6 29 .9 100.0 7.7

TOTAL NUMBER OF OPSrRVAtIONS: 516

-4m mm= mnaa iiIII I iti

i

GLOdAL CLIMATOLOGY BRYINCH PERLENTAGE FRLIUNCY OF OCCURRENCE OF SURFACT ,IJ3 U16F TION VERSUS WINO SPEFdUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 SIATION NAME: ZICRIKZE- NL PERIOD OF RECORD: 77-RfMONTH: Stp HOURSILSTI: 0600-0900

............. ;...........................................".P........"INO ......................................................

DIRECTION i 1-3 t-i 1-10 Il-lb II- A 22-7 28-33 I- 1-Ri 68-55 GE 56 TOTAL ME AN

IDEGR.ESI I W IN6D.... . ; ... ... .... ;:, " " ., .2 ... ; . . .. ...................................................................3.64 3.6

NNE I 1.9 1 . .5 2.5 3.9

NE I.3 .3 .I .I I.2

I NE 1. 1 .B .8 6.4 4.3

C 3.7 .1 .3 13 . c 3.6

ESE 1.6 .0 2.1 P6

SE .6 1. ,3 ,3 2.4 l.s

SSE 1.5 1.9 1.5 .5 S;.3 5.5

S 1- 3 .5 3.1 .8 .3 10.0 6.6

SShW 1,8 3.6 3. 3.9 1.0 5 14.1 9."

SW 1.9 3.64 3.6 R.T .7 . .3 1R.b 0. 3

WSW .5 1 . (] I.B 2. 1 1.0 .5 6.9 12.0

w I.3 1.1 2.1 2.8 1.0 1.S 9.7 12.5

WNWl 1.6 1.9 2.3 1.9 .6 .3 6.9 8.8

NW .5 .' .6 .3 .2 1. 7-3

NNW .2 .6 .8 2.1 .8

VRiiABIC 1.1 1,1 1.0

CALM / t .'///I/I/I/ //I /,f I I /,p I I I ////I/jI///I/I/////j/I/I///////////II//j I.1 IIIIII

TO IALS 23.7 27. 1 21.6 18.5 4.9 2.9 .3 1DO.0 7.7

TOTAL NUMUi'R Of OPSERVA TIONS: 617

• m uum-m m N.4. J'l" il f•I

(LOtAL CLIMATOLOUY BRANCH PERLENTAGE FrLOU'NCY Of OCCURRENCE OF SURFACE WIND UIPELTION VERSUS MIND

SFEEDUSAFETAC FRO4 HOURLY OBSERVATIONS

AIR WEATHER SRVICE/MAC

STATION NUMBER: U63250 STATION NAME: ZPTRIKZEM NL PEQIO0 OF RECORD: 77-?,O-R6MONTH: SEP HOURS(LSII: 0900-I10U

WINO SPEED IN KNOTS

uIQECIION I -3 4-b 7-10 11-16 I17-21 22-? 28-33 34-40 41-4 T 48-SS GE S6 TOTAL MEAN

I UE ,R. SI I 1 AiviD

NNE I .2 10 . .2 1. T 6.0

NE .2 1. ..8 1.0 3 . c .

fNE .NE ., 1.5 1.3 4*. 4.

,; I. ? 1.7 .3 4.4 b,3

fSE 1.1 1. .3 2.9 4.4

$I 1. . 7 1.7 .2 4.7 5.6

SS 1 I.2 IF 1.5 4.1, S 3

S 5. T 2.7 1.2 .2 10.6 5.6

SSW .2 1 . 9 4.0 2.0 .8 .5 .Z 1 1 .6 9. 7

sw .R 2.4 3.2 3.9 .7 .3 .3 11.6 10.6

WSW .8 1 . 7 2.0 2. 2 2.2 .7 9.6 1 1.9

W .? 1.3 4.4 3.9 2.2 1.2 13.1 12.7

WNW .2 1.17 1.2 3.0 ,5 ,q 6.1 12.6

Nw .5 .7 1.2 .5 2.9 7.2

NNW .3 1.0 1.3 .8 3.5 8.2

TOTALS I 10.9 2o. 2 28.7 z I. 6.6 3.5 .5 J00.0 9.0

TOTAL NUMPER OF ORSfRVATIONS: 595

-4mI . I iI lIl mnm

ULLOfAL CLIMAIOLO(.Y PRA48C PERCENTAGE FPEOU-NCY OF OCCURRENCE Of SURFACE wIND DIRE(TION VERSUS WIND SPEEDUSAFEIAC FROM HOURLY 0BSERVAT104S

AIR wFATHER SERVICEMA.

STATION NUMRER : 06321 5 TAYION NIAME: ZIR3IRE NL PEIO OF RECORD: 77-8bMONTH: SEp HOURSILS1 : 17OC-1400

.................................................... . .V;" .... ." .. " N........................................................

i WIND SPEED IN AN015DIPECJION 1 1- '4-b 1-10 11-lb 17-21 22-?7 28-33 34-40 41-47 49-55 GE 56 7CIAL MEAN(Of GREE S I I WIND

N .3 2.3 1.2 .2 4. t .

NNE I - .5 .2 1 7.4

NY .7 .8 "3 .3 1.6 7.7

FNE 1. 1.6 1.7 1.6 5. 3 P .4

E .2 .1 1.2 .9 2.9 8.4

f SE g 5 1 .1 7.0.S , .2 .5 .2I. ,

SE .6 -S 1. .6 1. 1 7.0

SSE .9 2, 1.7 .3 .3 5.9 6.4

S 2.0 , 3 3.6 1.2 3 11. l 6.9

SSW .6 2., 2.6 .8 1.4 . 8.2 IL.7

Sd .5 1.9 2.8 1.4 .9 .8 .2 8.4 11.0

WSW .5 1 1.2 2.0 3. ? .8 1.? 9. 13. 3

A ,3 3.1 8.7 S.7 3.6 1.6 .2 27.1 11.8

WNW .2 A 9 2.0 2. 9 .2 .6 .2 6.4 12. 3

NW .7 1.1 1.2 ,2 3.3 9.7

NNw I . 1.6 .9 .2 2.8 10.9

, .. ,,,,,...., ,......,.....................................,.............,..................,..........,.,......,.......,..,,,,,*,,

VARIABLE I I. 1.2 1 .8

CALM4 lll

TOTALS I 8.2 21.2 38.0 23.3 1.6 5.3 .5 100.0 10.0

OTAL NU4I4LR OF OBSERVAIIONS: 645

:L.L_

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQU:NCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063253 STATION NAME: ZIERIKZET NL PERIOD OF RECORD: 77-86MONTH: SEp HOURS(LSTI: 1SU0-7T0O

... .. ... .. ... .. .. ... .. ... .. .. ... .. ... .. . SP.. .. ... .. .. ....NOTS.. ... .. ........ "......."............

I wIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-N0 41-47 48-55 GE 56 TOTAL MEAN

IOFGRFSf I WIND...... N............. . .. . ;. . .; . . : ...... :; .............. :Z.......................................1;........8......

N I 5 1 ~ 36 16 . 27.4 9

NNE I.2 1.' .7 .5 .2 2.5 8.4

NE .2 .V .2 1.5 . 3 3.3 It.

ENE I .2 1.V 1.5 .5 3.1 7

E .7 .8 1.1 .3 3.0 6.7

rSE ,. ., .5 .2 1.5 6.4

SE .3 .3 .8 1.5 6.0

ssT 1.1 2.0 1.8 .8 .2 5.9 7.4

S 1.6 3.6 3.3 1.1 .2 .2 10.0 7.1

SSW .5 1.0 1.6 .5 ,7 .5 4.9 1C.3

SW .5 1.6 1.1 2.3 .5 .3 6.4 10.8

WSW .. .3 2.0 3.1 1 .6 1.5 .7 9.4 1%,6

I .7 3 1 11.3 5. 3 2.1 1.9 .2 23.6 10.6

WNW 7 2. 1 3.0 2.1 .5 .7 9.1 '.7

NW .T .7 1.1 .5 2.6 7.9

NNW ,. .7 1.6 1 1 .2 3.4 88

VARTARLE I ''1.6 1.6 2.0

CALM I.3 ////1///// ///////////I///////// ///////////j//////j/ * 3 Ijlll

TOTALS I 949 21. 35.3 21.5 6.6 4.1 1.0 100.0 9.6

TOTAL NUMALR OF O"SERVA TINS: b69

ii L

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUrNCY OF OCCURRENCE OF SURFACE wlNO OIRfCTION VERSUS WIND SPEED


AIR WEATHER SERVICE/HAC

STATION NUMBER: 063250 STATION NAME: ZILRIKZE NL PERIOD OF RECORD: 77-86MONTH: SEP HOURSILSTI: 18OO-2300


DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-2? 28-33 34-4I N1-47 N8-55 GE 56 TOTAL MEAN

IDEGR-ESI I V WIND

N 2.4 4 .1 2.6 .5 .3 .3 10.7 6.2

NNE I, 2. 7 1.2 .2 6.01 4 .

NE 1.2 zI 1.2 .6 5.2 6.2

ENE .5 1 .2 2.0 4 .5

E j.4 1.c 1.1 .2 3.P 5.1

ESE . .A .9 2.4 5.4

SE .3 2. r .3 3.1 4.6

5SE .5 1.g .8 .2 3.2 5.9

S 1.7 2-6 1.2 1.2 .3 .2 .2 7.3 7.9

SW I 7 2.6 .9 1.3 .3 .5 7.0 a.I

SW .9 . 3 2. 1 1.2 .2 6. 7 1.

WSW 1. 3. 7 2.9 4. 6 1. 2.1 15.4 1 1 .

W I.? 3. 2.6 2.0 1.2 .5 .3 11.6 o.s

WNW I.T . 1.5 .8 .2 5 6.? 1 C

NW .6 .p .9 ,6 .3 4,' '7.

NNU .0 11 .1 .3 .2 ."

.. , ... ° . , i • .. , , ...... •, ° . , , . ° , , . , . ° 0. .o °, ° .° * , , . .. ° °. . . . , ,. . . .,. . .VAAIABLI 1I.4 L

TOTALS I 2.9 35.I I38. 14.0I r.0 4. .5

S... . . . .. . ........... ..,° ,. .. . . °. ... o . ..,. . .. . .... . ,* . ,, , • , . . .. .... . ...... ..... . ... ...... ..

TOTAL NUMBER OF OPSCRVAIIONS: 655

0 mJb, mmmmmmmmmmmm ml

AD-AI83 267 jj~ r NET 2/3

Ut4CLASSIFIED U ADS- / 'C 2 ML

LI

J145 LL .

VICI')COPY RESuOUJ)w4'S I~RT

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUINCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICEINAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 77-6bMONTH: SEP OURS(LSTI: 2100-2300

...........................................................................................................................................MINO SPEED IN KNOTS

DIRECTION 1 1-3 9-6 7-10 li-lb 17-21 22-27 28-33 39-0 91-47 98-SS GE 56 TOTAL MEANIDEGREESI 1 2 WIND

...........................................................................................................................................N I 2.0 .9 .6 .4 3.9 5.2

NNE 3.1 .6 1.3 5.0 9.0

NE 2.9 1.6 2.4 .4 7.6 5. 2

ENE 2-0 .9 .2 3.1 3.5

E 4.8 1.3 .7 6.8 3.5

S SE .9 .6 .6 1.8 2,?

SE .9 2.6 1.1" 9.1 5.6

SSE .7 1.7 .9 .6 3.9 6.5

S 1.8 2.R 1.3 .9 .9 .2 7. 6.7

SSW 2.8 2.0 1.5 1.1 1.7 .6 9.6 9.0

Sm Z.8 3.3 3.7 1.8 .6 .7 12.9 6.3

WSW 1. 3.3 2.9 2.9 1.1 .9 11.6 8.9

S1.3 .9 1.3 1.5 .4 1.1 .2 6.6 11.7

WNW 1.3 .2 1.7 1.1 .2 .2 9.6 8.6

NW 1.1 .7 .2 .9 2.9 6.0

NNU 1.1 .9 .2 .9 2.6 6.7

VARIABLE 2.6 2.6 1.1

TOTALS 33.1 23.9 20.1 10.9 5.0 3.1 .2 100.0 6.7


ThGLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE Of SURFACE WIND DIRECTION VERSUS WIND SPEEDUS AFETAC FRO4 HOURLY OBSERVATIONSARWEATHER SERVICE/MAC

STA:TION NUMBER: 063250 STATION NAME: ZIERIKZE-- NL PE"IOD OF RECORD- 77-j!MONTH: SEP HOURSILST . ALL

DIRECTION I 1-3 4-6 7-10 11-16 11-.11 22-?7 28-33T 34-40 41-47 48-55 GE 5b TOTAL MEANI DEGREES1 I WIND

N I .2 .5 .8 5 . .3 .0 .8 6.7

NNE I 1.0 1.2 .6 .1 .0 2.9 5.1

NE I 1.0 1.6 .8 .5 .0 3.9 6.2

ENE I 1.3 1.2 1.0 .81 8.0 5.9

E I 2.3 1. .8 .3 8.7 81.6KESE I 1.1 .9 .8 .0 2.s mi. 4

SE I .8 1.3 .9 .2 3.2 5.5

SSE 1.0 2.1 1.8 .8 .1 8.9 6.1

S I 1.8 3. 6 2.5 1. 1. .2 .1 .0 8.9 7.0

SSW 1.2 2.T 2.5 1.7 1.0 .5 .1 9.7 9.8

SW 1 .3 2.8 3.0 3.2 .9 .8 .1 11.7 9.8

WSW I .8 2.1 2.2 2.9 1.1 1.0 .1 10.0 11.6

W I .9 1.9 8.2 3.2 1.8 1.0 .1 13.0 11.6

WNW I .8 1.11 1.8l 2.0 .8 .6 .1 7.0 10.8

NW I .6 .8 .7 .7 .1 .3 3.0 8.1

NNW I .4 .6 .8 .7 .1 .0 2.6 8.3

...........................................................................................................................................VARIABLE I 1.8 3.8 1.1

TOTALS I 18.9 26.p 28.9 18.0 5.8 3.6 .6 100.0 8.3

..........................................................................................................................................


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE MIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEE NL PERIOD OF RECORD: 60-86MONTH: OCT MOURSiLSTI: 0000-0200

.........................................................................................................................................I WINO SPEED IN KNOTS

DIRECTION | 1-3 4-6 7-10 11-16 17-21 22-:7 28-33 34-40 41-47 48-55 GE 56 TOTAL MEANIDE GRIESE | WIND

N 1.7 -q .7 .2 2.q 4.5

NNE .4 .2 .7 .6 1.8 7.9

NE .6 1.7 .6 .2 2.9 5.4

ENE 1.7 2.2 1.1 .2 5.1 4.9

E 2.0 2.0 1.8 1.1 7.0 6.1

ESE .7 .9 .2 1.8 4.4

SE 1.3 .2 .9 .6 2.9 7.1

SSE 1.I .7 1.5 .6 .2 4.0 7.0

S 1.3 2.6 3.7 3.3 .7 .2 11.7 9.4

SSW 1.7 1.5 4.2 3.1 2.0 .4 12.8 10.6

Sw i.3 1.5 6.4 5.1 .7 .7 15.8 10.4

WSW .4 1.1 2.2 2.8 .7 1.7 8.8 13.6

M .2 .4 1.8 1.8 1.3 1.1 .9 7.% 25.9

WNW .9 1.5 2.9 1.7 1.S .9 .2 9.0 11.S

NW ,4 .9 .2 .4 .2 2.n 1.8

NNW .9 .2 .6 .4 2.13 S.8

VARIABLE .9 .9 1.2

CALM .7 t11111//I Il/////l///////l III lI/I//I//Il//I //I/I//l///////l///Ii ilJ/i////lI/////// .7 Il/tll

TOTALS I 17.2 il.m 29.0 21.8 7.2 5.1 1.1 100.0 9.5

.. . .. e. . . . ... .. .. . ... . . . . . . . . . .............. ..... ........ ..ee ...... ... ..... ......... .... ~ . . ..


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOENCY OF OCCURRENCE OF SURFACE MIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRON HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION MUNBER* 063250 STATION ANE ZI RIXZE- ML PERIOD OF RECORD: 80-86

MONTH: OCT HOURSILSTI: 0300-0500

...............................................................................................................................................I WIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 1-10 11-16 17-21 22-?? 28-33 34-40 41-47 48-SS GE 56 TOTAL MEANIDEGRESP I M WINO

..............................................................................................................................................N .8 .2 .9 .q 1.8 7.1

NNE .8 .8 .S .2 1.5 6.1

NE 1.3 2.5 S .6 .5 6.0 S.9

IWE 1.1 1.8 1.3 .S 8.7 5.8

E 2.4 2.C 2.8 3.8 8.5 b.8

ESE .9 .5 1.5 3.1

SE .9 1.8 .2 2.9 8.6

SSE .S .8 1.8 .8 .2 .2 3.5 8.9

S .8 2.2 3.S 3.6 1.1 10.7 1O.0

SSW I.S Z.9 8.8 3.8 1.6 .2 18.8 9.6

SW ,8 1.3 5.8 S.3 I.S 1.1 15.3 11.9

WSW .S .? 3.3 2.8 .8 .5 .9 6.7 38.3

W.9 1.5 3.6 .9 1.8 . 9.1 15.6

NNW .7 I. 2.0 2.7 I.s .2 8.9 Ia.8

NV .2 .7 .2 .7 3.8 7.9

NNW . -S . .9 2.2 8.6

VAIBL ,. 2 2.0

TOTALS I 12.0 20.7 27.6 26.9 7.1 8.0 1.3 300.0 9.9

TOTAL NUMBER OF OBSERVATIONSt 550

I-J m ,am nm mI m

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED

USAFEIAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PEDIOD OF RECORD: 77,79-56MONTH: OCT HOURS(LSFI: 0600-0800

WIND SPEED TN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-?? 28-33 34-40 41-47 9B-Ss GE 56 TOTAL MEANIDEGRES| % WIND

• N I .7 .2 3.0 .7 2.5 7.6

NNE .3 .7 1.0 .2 2.1 7.1

NE .7 1.3 .2 2.1 9.5

ENE 1.0 1.0 2.0 .3 9.3 6.S

t 2.0 2.5 1.3 1.6 7.9 6.9

ESE 1.2 1.2 .3 2.6 9.6

SE 1.0 1.3 2.3 .2

SSE .2 1.8 2.3 1.2 5.9 8.0S I .2 2.3 3.9 5.4 .8 .2 12.8 10.6

SSW .3 3.3 9.0 9.9 1.8 5 15.6 10.9

SW 1.0 9.1 3.9 9.9 3.S .5 16.3 9.7

WSW .3 .7 1.8 2.1 .S .5 5.9 11.9

N .3 1.2 2.5 2.8 Ito 1.6 9.4 13.9

Nkw .3 .7 .7 2.1 1.2 1.3 S.9 11.S

NW .2 .3 .5 .2 1.2 9.9

NNW .5 .8 .3 1.0 .2 2.9 8.3

VARIABLE I .9.8 1.0

CALM li,,,i//I///i iii/i/////I///Ii// ///I////fI///I// ///Ii/////////////////////I ,5 lll

TOTALS 1 jj.1 23.2 26.0 27.3 1 .3 100.0 9.7

...............................................................................................................................................

TOTAL NUMBER OF OBSERVATIONS1 608

.,

1* ±

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUTNCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD or RECORO: 77,79-e6MONTH: OCT HOURSILS 1: 0900-1100

I WIND SPEED IN KNOTSDIRECTION 1-3 1-6 7-10 11-16 17-21 22-27 28-33 34-1D NIl-4 No-SO GE 56 TOTAL MEANIDEGR£E$I S WIND

........................... ...... ..................................................... . .N,2 .0 .2" . .2. .. . .. . .. . ... . .. . .. . ... 7.3

NNE . .3 1.0 .7 2.6 8.3

NE .3 .3 .8 .3 1.8 7.8

FNE .5 1.0 1.2 ,S 3.2 6.90E 1.3 2.2 2.0 1.0 6.6 6.5

0 ESE .5 .8 .3 .3 2.0 6.1

SE .7 1.7 1.7 .2 6.2 5.8

SSE .7 1.6 1.0 1.0 .2 6.7 7.5

S .5 2.5 5.6 5.2 .3 .2 14.1 9.6

SSW .8 1.7 6.0 6.1 1.7 1.3 15.6 12.0oSW .7 2.9 1.5 6.7 1.5 1.2 IS.S 11.6

WSW .3 1.8 3.0 1.5 .2 6.9 13.2

B .3 2.0 2.0 2.7 2.0 .2 .2 9.6 11.8

MNW 17 3.2 2.7 1.2 1.2 6.9 |%.S

NB .2 .8 .3 1.0 2.6 8.6

NNB .z .1 .7 .2 1.3 12.3

VA I B E I . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .7 1.3

CALM /i////I// I////// .S //I///

TOTALS I 7.9 20.2 21.9 30.6 8.6 6.2 .3 100.0 10.2

TOTAL NUMBER OF OBSERVATIONS: 59S

LIn

GLOBAL CLIMAIOLOGY BRANCH PERCENTAGE FREUU[rCY Of OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROq HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIFRIKZE- NL PEPIOD OF RECORD: 77,80-R6MONTH: OCT HOURS(LSrI: 12oo-IRCo

..........................................................................................................................I WINO SPEED IN KNOTS

DIRECTION I 1-3 1-6 1-10 11-16 17-21 22-7 28-33 316-40 61-47 16-5S GE 56 TETAL MEANIDEGR:ESI I I hIND

...........................................................................................................................h . e.1 .5 .2 2.46,*.

NNE .2 * .8 .6 2.1 .2

NE . .6 .5 1.7 8.3

ENE .5 *" 1. 1.1 3.% 9.7

E .2 1.2 1.3 2.1 4.6 9.5

rS I .5 1.1 .6 2.2 5.6

sr .2 1.9 1.3 .3 3.7 7.0

SSE .8 2.2 2. .8 6.2 6.8

S 1.1 3.8 1.8 3.7 1.0 14.3 8.8

SSW 1. 1 F4 3.3 19. I.q .5 12.2 1J3.I

SN .5 .3 3.0 1.9 .8 *5 .3 10,S 12.3

WSW .8 1.6 3.2 2.5 1.7 .6 .2 10.6 11.6

.3 1.6 5.1 5.1 2.7 1.3 .3 .2 16.5 13.16

VN .2 :3 1.9 2.5 1.0 .5 6.3 12.9mv 7 . .2 .8 .2 1. 3 12.0

NNW .2 .5 .5 .6 1.7 13.3

TOTALS 5.1 17.5 32.5 29.2 9.5 16 .1 1.1 .2 .2 100.0 10.9


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAF, T aC FRO4 HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 77,79-86MONTH: OCT HOURSILSFI: 1500-1700

...............................................................................................................................................I WIND SPEED IN KNOTS

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-?? 28-33 3%-40 NI-47 48-5s GE 5b TOTAL MEANIDEGREESI gI WIND

............................ ........................................................................... .....N 11. .9 .5 .4 .2 3.3 9.9

NNE .7 1. .7 3.2 7.7

NE .2 .7 .9 .2 1.9 6.7

ENE .5 .7 1.9 .2 2.8 9.8

K'E .2 1.2 3.0 1.8 6.2 8.8

ESE .5 .5 .9 .2 2.1 6.2

SE .4 1.. .7 2.5 5.7

SSE .9 3.5 1.8 .5 .9 7.0 6.9

S .5 2.1 2.5 2.8 7.9 8.9

SSW ,9 3.3 5.6 1.8 .2 .5 .? 12.5 12.9

SW .2 1.1 3.0 3.9 1.4 .7 .S 10.7 13.1

WSW .9 1.9 2.1 2.1 1.8 .7 9.0 11.9

W .2 2. s 3.5 6.7 1.2 1.6 .s .7 16.3 13.0

WNW .5 .5 2.3 3.3 .9 .7 .4 .2 8.8 13.7

"W .2 1.1 . ., .2 2.1 6.0

NNW .9 .9 .7 .7 3.2 7.1

SVARIARLF I .4. "

CALM Ij i//I//I//Ii/I ///////i///I////IiI//I////Ii///I//////////I////II////////////I////// .2 l//l

TOTALS 6.7 19.9 27.9 30.4 8.1 4.3 1.6 .7 .2 100.0 10.8


-4

IC) wwm - immmim

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY Of OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFET AC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC©STATION NUMBER: 063Z5 STATION NAME: ZIERIKZE7 NL PE

0IOD OF RECORD: 77,19-86

MONTH: OCT HOUqsILSrI: 1800-2300

I WIND SPEED IN KNOTSDIRECTION I 1-3 8-6 7-10 11-16 17-21 22-?7 28-33 34-4O 41-17 8-55 GE 56 TOTAL MEAN

DE GRrES I % WIND. . .. ............ ;........ ........ ........ 7........3........................... . . .......... ................. . ..• • • . o .

N1.5 . .8 .7 .3 . o

NNE .8 1 . ) .8 .3 3.0 6.3

NE 1.0 1.0 .2 .3 2.5 5.7

ENE I.5 .7 .7 1.3 .2 6.9

E 1- 3.2 1.s .5 6.s 5.B

ESE .2 1.3 .3 1.8 5.0

SE .3 1.7 1.0 .3 3.3 6.3

SSE 1.0 2.2 2.5 1.0 .5 .2 7.3 8."

S 1.5 2.0 2.2 3.0 .6 9.5 9.3

SSU .5 2.2 3.0 6.7 1.2 .3 .3 .2 14.3 11.8

S I .s 2.3 2.0 3.8 1.3 .1 .2 11.0 12.0

WSW o7 2.2 2.7 1.3 .2 7.n 12.5

V 1.9 .R 2.0 4.0 .8 .9 .2 10.5 11.6

WNW .8 1.2 2.3 1.7 .7 .8 .2 T.7 11.3

NW S.7 5 8 ,7 .3 3.0 9.8

NNW 1.0 .5 1.2 .2 2.8 5.6

TOTALS I 5.3 21 . 23.5 27.7 7.0 3.9 .8 i! 100.0 9.5

oo .. .*..... ........... o .. ,,. oo.. ... ..o~ .o. . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . .

IOTAL NUMBLR Of OTISERVATIONS: 600

e

rd

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063253 STATION NAME: ZICRIKZEZ NL PERIOD OF RECORD: 77,80-86MOHIH OCT HOURSILSiT: 2100-230D

.................................................................................................................................................I WIND SPEED IN KNOTS

DIRECTION J 1-3 9-6 7-10 11-16 17-21 2 2

-27

28-33 34-40 41-47 48-55 GE 56 TOTAL MEANIDEGREES) | I WIND

........ ....... ....... ....... ....... ....... .. . . . . . .. . . . . .

N 3.0 6.5

NNE 3.1 .1 .2 .7 2.3 6.2

NE I .4 2.5 .7 .7 5.3 5.6

ENE 1.2 1.2 .4 .5 3.3 5.2

E 1.9 2.3 2.6 1.9 8.2 7.4

ESE .9 .5 .4 1.8 9.5

SE .. . .9 .2 .2 .2 2.3 8.6

SSE .2 1.1 2.1 .9 .2 .2 4.0 8,3

S .9 3.0 2.3 3.3 .9 . 10.7 9.9

SSW 1.8 1.9 3.0 5.8 1.6 .S .4 14.9 11.4

SW .S 1.9 9.9 4.0 .9 5 12.8 10.6

WSW .4 1.6 2.1 2.1 .7 .9 .2 7.9 12.0

A . .2 2.3 2.3 3.1 .9 1.9 8.9 16.0

VNW .7 .5 1.8 1.8 5 1.1 .2 .2 b.7 13.7

NW ,. ,5 .7 .5 .2 .2 2.6 8.7

WNW .7 .9 .9 .2 .2 2.8 6.4

VAIBL 232.1 1.3

CALM | .9 lll

TOTALS I 14.9 20.7 25.4 24.7 6.3 4.7 1.8 .5 100.0 9.8

................................................................................................................................................


mi.L

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEI NL PERIOD OF RECORD: 77,79-86MONTH: OCT HOURSILSF): ALL

... ... ... ... ... ... ... .. ... ... ... ... ... ... . . ,..,.. .. .. . .o .... . . °...o....,..o.. .. ....... ,.....o..

I WINO SPEED IN KNOTSDIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-0 41-47 46-5S GE 56 TOTAL MEAN

I0EGR-E(S I 2 WIND

N N .6 . .o .N .1 .0 2.7 7.5

NNE .S .5 .8 S1 2.3 7.2

NE .7 1.3 .7 .3 3.0 6.0

ENE l.0 .r 1.1 .7 .0 3.9 6.6

E 1 I3 2.1 2.0 1.5 6.8 7.1

ESE .7 .9 . .1 2.0 5.0

SE .6 1.8 .8 .2 .0 .3 3.0 6.2

SSE .7 1.7 1.9 .7 .2 .1 5.3 7.6

S .8 2.6 3.5 3.8 .7 .1 11.5 9.6

5SW .3 1.9 3.9 8.9 1.6 .6 .2 .1 14.1 ll.S

SW .1 1.9 .2 9.5 1.2 .8 .1 13.4 I.3

WSW .8 1.0 2.1 2.5 1.1 .6 .1 .( 7.9 12.S

I.8 3.Z 2.6 3.6 1.8 3.2 .5 .0 .0 11.n 13.6

WNW .S .9 1.B 2.3 1.0 .8 .1 .1 .0 7.5 12.8

NW .1 .6 .3 .6 .1 .1 2.n 8.9

NNW .6 .5 .6 .6 .I .3 2.N1 8.0

VAR|ABLE .7 .7 3.3

TOTALS 11.3 20.2 27.5 27.8 7.6 8.3 1.0 .2 .0 .t 300.0 10.0

TOTAL NUMPER OF OBSERVATIONS: 8667

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEfMAC

STATION NUMBER: 063253 STATION NAME: ZIERIKZE NL PERIOD OF RECORD: AD-86MONTH: NOV HOURSILSTI: 0000-0200

WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-40 41-47 8-55 GE 56 TOTAL MEAN

IDEGREESI I WIND

.................................................................................................................................................N .2 .e .2 .2 .4 .2 .2 2.2 12.9

NNE I .2 .6 .2 .2 1.2 7.0NE 1.0 .2 .2 1.4 4.9

ENE I .8 8 .6 1.8 .4 4.5 9.6

L .6 3.1 3.3 1.2 .6 8.8 8.0

ESE 1.2 .2 .6 .6 2.7 10.8

SE I .4 • 2.0 1.2 .2 4.5 9.0

SSE .4 .6 1.2 1.0 3.3 8.0

S .6 1.0 3.3 1.6 1.8 .4 9.4 11.2

SSW .6 4.1 6.7 2.2 1.4 15.1 13.6

SW .6 1.8 8.0 7.2 1.0 .4 19.0 10.7

WSW .2 1.? 1.6 2.2 1.2 .6 .2 .4 7.8 14.2

W 1.0 .1 1.6 Z.Z 1.2 1.2 .2 8.0 1j.6

NNW .8 1.2 2.2 1.8 .6 6.3 13.2

NW .2 1.2 .6 .2 2.2 6.2

NNW .2 1.6 .2 .8 2.9 7.1

VAIBEI . .6 1.3

CALM4 1 .0 l/I

TOTALS I 7.2 16.6 26.6 29.7 11.0 8.9 .6 .4 100.0 10.9

.........................................................................................................................


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZET NL PERIOD OF RECORD: 80-84,86MONTH: NOV HOURSILSTI: 0300-0500

I BIND SPEED IN KNOTS

DIRECTION I 1-3 A-b 7-1O 11-16 17-21 22-ZT 28-33 3R-40 41-47 48-55 GE 56 TOTAL MEANIDEGRrESJ % WINO

N .4 .9 .7 .4 .4 .2 3.1 11.3

NNE .7 .4 1.1 9.2

NE .2 .7 .2 .2 .2 1.6 7.6

ENE .9 .4 .9 .7 .4 .4 3.8 10.2

E .4 2.7 2.7 1.8 7.6 7.9

ESE .7 . 2 .9 1.1 .2 3.1 9.7

SE .2 2.7 .4 .2 3.6 9.4

SSE .4 .9 1.1 2.4 9.8

S .9 1.6 3.3 1.8 2.7 .4 .2 10.9 11.8

SSW .4 .4 5.3 6.2 1.1 1.1 .2 .2 15.1 13.0

SW .4 3.1 5.8 8.0 1.8 .2 19.4 11.2

WSW .2 • .9 2.9 .2 .4 .2 .4 .2 S.8 16. 3

W 1.3 1.3 2.7 2.0 .7 .9 .2 .2 9.4 11.4

WNW .7 1.1 1.8 .9 1.3 9.8 10.9

NW .2 .7 .9 1.1 2.9 A.9

NNW .9 .4 .7 .4 .2 2.7 7.6

V 1. 0

CALM l iiiii iiii i/i ii I//I/I/Il/Il/I i/,/I//IIIIII//I/////Ii//Ii.'II/Ii,/I/.'I//II///I////I///I ,.7 l/llI

TOTALS I 9.4 14.7 30.3 29.6 9.1 3.8 1.1 .9 .4 100.0 11.0


0do-

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 063250 STATION NAME: ZIERIK7E ML PERIOD OF RECORD: T7 79-86

MONTH: NOV HOURSILSfI: 0600-0800


DIRECTION I 1-3 9-6 7-10 11-16 17-21 22-7 28-33 39-40 41-47 98-SS GE 56 TCTAL MEANDIEGRES3 I % WIND

N .6 1.1 .4 .9 .6 .4 3.9 I.S

NNE .2 49 .2 .7 6.3

NE I .2 .2 .6 *6 1.5 30.0

ENE .9 .2 .9 .9 .9 .9 3.7 13.2

E . 2.2 2.6 1.3 6.6 8.2

ESE .4 1.7 1.5 .2 3.7 10.1

SE .9 .2 2.1 .9 3.0 8.1

SSE .9 .2 1.3 .7 .9 3.6 9.3

S .4 .7 3. 3.0 .9 .7 9.2 1.5

SSW .4 1 9.7 8.1 2.2 .9 17.8 12.5

SW .9 1.7 5.6 6.0 2.8 .2 17.2 11.3

WSW .6 .7 1.3 .9 .2 .9 .2 .4 .4 .9 6.0 18.9

W .6 .9 1.3 1.3 2.6 1.3 .9 .9 8.9 1S.8

WNW .2 2.1 1.5 1.5 1.7 .4 7.3 11.1

NW .6 .2 .2 .1 .2 1.9 9.0

NNW .4 .6 .7 .6 .2 2.9 8.3


TOTALS I 8.8 13.3 28.3 28.7 12.9 5.8 .6 .7 . .4 100.0 13.5

..........................................................................................................................................


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUNCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED

USAFET AC FROR HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZET NL PERIOD OF RECORD: 17,79-94,86

MONTH: NOV HOURSILS||: 0900-1100...........................................................................................................................

I WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 1-10 11-16 17-21 22-?? 28-33 34-40 41-47 48-55 GE 56 TOTAL MEANIDEGREESI 2 WIND

N .6 .4 1.3 .4 2.7 10.0

NNE 1.0 .2 .2 .2 .6 2.3 8.5

NE 1.5 .6 1.0 3.1 6.5

ENE .2 .6 .4 ti .6 2.3 10.5

E .6 1.3 1.5 1.1 .2 .2 5. 9.7

ESE .z 1.7 .6 1.9 .2 4.6 9.5

SE .6 1.3 8 2.7 8.3

SSE 1.0 .6 .8 .4 2.9 10.3

S I . 3.8 3.1 1.3 9.4 13.0

SSW 1.9 .4 2.9 7.9 2.7 1.7 17.6 13D2

SW 1.0 1.3 4.2 8.2 2.3 .6 17.6 11.8

WSW .6 ,8 3.3 2.9 1.0 .6 .4 9.8 12.4

W .2 1.0 1.0 2.5 1.0 I.? .4 .4 8.4 16b.6

NW .2 .8 1.9 1.T .8 .6 6.1 12.0

NW .2 .6 .6 .8 2.3 9.2

NNW .2 .6 .8 .6 .2 2.5 9.6

..............................................................................................................................................VALIARLE I .2 .2 . g ~.

2 .2

1 .0

TOTALS 6 13.t 23.6 36.0 11.7 5.6 .6 .4 100.0


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MACCSTATION NUMBER: 063250 STATION NAME: ZIERIKZEE NL PRIOO OF RECORD: 77,79-sb

MONTH: NOV HOURSILS : 1200-1400.............................................................................................................................................

WINO SPEED IN KNOTSOIRECTION 1-3 q-6 1-10 11-16 17-21 22-27 28-33 34-0 41-47 98-55 GE 56 TOTAL MEANODEGREES) I B WIND

.............................................................................................................................................N .2 .7 1.6 .9 .S 3.4 9.s

NNE .7 .5 .7 .2 2.1 9.8

N E .4 1.2 .9 2.5 9.7

ENE .2 .4 1.2 .9 .7 3.4 1!-Z

SE .2 .5 .5 2.8 .5 41.6 12.0

ESE .5 .5 1.9 2.S 1o.

SE .9 1.9 .9 1.2 .z 9.1 F.?

SSE .9 .5 2.5 1.1 S.0 8.0

S .5 1.2 3.7 2.0 .5 .2 6.2 9.7

SSW .4 .s 3.9 S.0 2.9 1.% 19.0 13.6

SW .9 1.2 3.0 7.9 2.1 .1 .9 IS.2 13.1

WSW 1.9 2.6 9.9 2.9 2.0 .4 12. 191.1

W .2 1.4 2.0 3.9 3.2 2.1 22.2 19.6

WNW .2 .7 2.6 .9 4. 3.s

M. V .4 .7 .9 .2 ,S 2.1 13.4

NNW . 1.6 5 .2 Z 21 10.0

.... VARA. L|*' ''' '''........ ......................................................................................................

VARIABLE I 1.0

CALM w I it I I /// / / // / /I II// ,f or/ /II/I/ I 1.0 11 I I I I I I /,pII 1,111/i I/o I

* TOTALS I 3.7 21.9 27.S 3s.8 I.s 6.9 .1 I00.0 2.?


o .. mo m ~immmmdl I II l ll mm

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS MIND SPEEDUAAFET AC FROM HOURLY OBSERVATIONSAIR WEATHER SERVXCE/"AC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE! NL PEOIOO OF RECORO: 77.79-8 86MONTH: NOV HOURSILSTI: 1500-1700.................................. ,................. ............. ...........................................................

I WIND SPEED IN KNOTSDIRECTION 1 1-3 1-6 7-10 11-16 17-21 22-z7 28-33 34-4o NI-N7 44-5S GE 56 TOTAL MEANtOEGR.ESP | WINO

N .6 .8 1.2 .8 .2 8.7 8.8

NNE .2 .7 .N .2 1.0 8.4

NE 7 . ? .6 1.0 Z.0 9.3

ENE .2 *N .2 1.N .2 2.5 10.9

E 1.0 1.8 . 2.7 .8 6.7 9.9

ISE *2 12 1.0 1.0 1. .2 3.5 9.N

SE .2 .6 1.0 .6 2.5 8.2

SSE 1.0 .8 2.5 .6 .2 5.1 7.6

S I N 1.2 2.9 .8 .N .N 6.1 10.1

SSW 1.0 5.3 7.0 2.2 .8 16.8 1 2 -.

SW 1.0 1.2 2.9 6.3 .8 .6 12.9 11.5

WSW 1.6 3.3 3.7 1.N 1.6 .N 12.1 13.5

.*N 1.0 1.6 3.3 1.N 1.2 9.0 13.7

N NW .2 .8 1.N 2.5 2.9 1.u 6.N 15.1

Nt .N 1.2 .8 .2 .2 2.9 11.8

&Nk .8 . 1.6 1.0 1.3 7.7

VARIABLE I

TOTALS I 6.5 1.7 27.6 3N.8 11.0 5.9 .N 100.0 II.5

TOTAL NJ RSI OF OBSERVATIONS: f89

0

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQU1NCY Of OCCURRENCE OF SURFACE WIND DIRECTION VERSUS MIND SPEEDUSAFETAC FROQ HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063253 STATION NAME: ZIERIKZET NL PERIOD OF RECORD: 77,79-66MONTH: NOV HOURSILSTI: 100-Z000

I WIND SPEED IN KNOTSDIRECTION I 1-3 9-6 7-10 11-16 17-21 22-?? 28-33 34-RD 91-47 46-55 GE 56 TOTAL MEANiOEGRESI bIND

.................................................................................................................................N " .7 1.6 .7 .9 .2 .2 9.5 8.0

NNE .2 .4 .2 .7 8.5

NE .2 .9 1.1 1.6 10.0

ENE .9 1.1 1.8 .9 .7 5.S 9.1

E .5 2. 1.1 2.5 .9 6.5 9.9

ESE .2 .9 1.1 .9 3.1 8.5

SE .7 .9 2.9 .7 4.7 7.z

SSE .2 .9 1.8 .9 2.7 8.3

S .5 .7 3.3 2.2 .5 .9 8.2 l1.4

SSW .7 2.0 9.0 7.1 1.6 .9 .2 16.5 12.1

53u 2.r 5.5 9.2 3.3 .2 13.1 11.7

'WSW .4 1.s 2.7 2.4 1.5 2.0 10.4 13.S

W .9 .4 1.6 1.6 1.1 1.3 .9 6.7 14.6

WNW ,. .5 1.6 3.1 2.5 .5 .2 8.9 19.0

NV I . .9 9 .2 .5 .2 2.S 9.7

NNW .9 .9 1.1 .9 3.3 6.7

.................................................................................................................................................VARIABLE .2 .2 .0

CAL14 .7/ / / / ?lll

TOTALS | 7.3 16.S 29.5 28.5 10.S 6.0 .9 300.0 11.0

.................................................................................................................................................


piLa-

0 GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUINCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUS AFETAC FROM HOURLY OBSERVATIONS.*IR WEATHER SERVICEIMAC

STATION NUMBER: 063253 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 77.80-84,B6MONTH: NOV HOURSILST): 2100-230D.........................................................................| WIND SPEED IN KNOTS

DIRECTION I-3 4-6 7-10 11-16 1-21 22-27 28-33 34-NO 41-41 48-55 GE 56 TOTAL MEAN

IDEGRCESI I WIND

N .4 1.1 .9 .9 .2 3.4 8.9

NNE .4 .6 .4 1.5 13.0

NE .6 .4 .4 1.5 8.1

ENE .4 .2 .4 1.5 .2 .4 3.2 12.1

E 1.3 2.8 .9 3.2 .4 8.5 8.8

ESE .4 1.1 .9 .9 .6 3.8 9.4

SE .4 1.1 2.8 .9 5.1 7.8

SSE .2 .2 1.5 .9 2.8 9.2

C) S .6 2.1 1.1 2.1 .9 6.8 9.8

SSW .6 .9 3.4 6.0 3.4 1.1 .2 15.6 13.5

SW o 4 2.1 7.9 5.8 1.9 18.1 10.6

C WSWI .9 .4 1.7 4.3 .6 1.1 .6 .4 10.0 15.5

W .4 .4 1.1 2.8 1.7 .4 6.8 13.9

WNW .6 .6 1.1 2.1 1.5 .6 6.6 12.9

NW .9 .8 .2 .2 .6 .2 2.6 9.8

NNW 1.7 .9 .2 2.8 6.7

....V RIA E ....... . .....................................................................................................

TOTALS F 8.1 15.8 24.9 32.6 12.4 4.1 .9 .4 100.0 11.3


9L-

GLOBAL CLIMATOLOGV BRANCH PERCENTAGE FRLOIUNCI OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEO

USAFETAC FRON HOURLY ORS(RVATInNS

AIR WEATHER SERVICEIMAC

STATION NUMRER- 063Z50 S$r S ION NAME: ZIERIK 21 NL PERIOD OF RECORD: 77.79-86MONTH: NOV HOURs(LSiI: ALL

........... o................o.....o.....................o.....o.......o.o....e...o....................o...............o....

WIND SP[EO IN KNOIS

DIRECIION I 1-3 4-6 7-10 11-16 11-21 22-27 28-33 34-40 41-.1 98-SS GE 56 TOTAL MEANtf FGR: E S I % WIND

NNE .3 . .2 .3 .2 1.3 9.1

NE , . .5 .7 .0 1.9 8.3

ENE I .S .5 .8 3.1 .5 .2 3.6 10.7

E ,b 2.0 1.6 2.2 . .1 6.8 9.3

ESE .z .9 .9 1.2 .2 3.8 9.7

SE I . .6 3.9 .0 .2 3.8 8.3

SSE .S I 1-b .8 .1 3.S 8.6

S s 1.2 3.1 2.1 1.0 . .0 8. 10.9

SSW I . .9 9.2 6.1 2.3 1.2 .1 . 16.0 13.0

Sw 6 1.8 S.3 6.6 1.8 .3 .1 .0 36.5 11.8

WSW . 1 3.0 2.2 3.0 3.0 1.2 .3 .1 ,1 .1 9.1 14.4

W .5 .9 1.6 2.9 1.? 3.3 .z .1 8.7 38.8

WNw .3 .8 3.9 2.1 1.6 5 .0 6.9 12,9

NW , *6 6 .6 .2 .2 2.S 2O.0

NNW .4 .9 1.0 6 .1 .0 2.9 1.9

TOTALS I .8 194.91 1.6 33.9 31.6 6.4 .1 .7 .1 .1 300.0 3.

.............VA I O ( i........;.....................................................................................................

TOTAL NUMBER OF OBSERVATIONS: 93220!

-K&S | 7q I* l~ 19 |, , ? 7 , ||OO |.

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY Of OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO" HOURLY OBStRVATIONSAIR WEATHER SERVIC(/MAC

STATION NUMBER, 063250 STATION NAME- ZIERIKZE-- NI PEPIOD OF RECORD: SO-86M ONTH: DEC HOURSILSTI 0000-0200

I MINO SPEED IN KNOTSDIRECTION 1 -3 14-b 1-10 I1l 17-21 2?-?? 28-33 34-40 14I-47 1 88-66 GE 66 TOTAL ME ANIOEGR.CSI I WIND

N . 2 .7 .5 .5 2.6 8.

NNE .7 .7 .2 1.2 8.6

NE I .7 .9 .7 .2 2.6 b.8

ENE I .5 .2 .2 .2 1.? 6.8

t .7 .S 3.6 1.2 S.8 8.6

E SE 1 7 .2 .Z.6 8.6

SE I 7 1.2 l.A .5 .0 10.2

SE.2 .! 1.8 1.4 .5 3.7 1.

S I .6 2.1 3.1 3.5 1.9 .6 52.1 11-2

SSW I1.2 3.7 8.7 2.3 Z.3 .2 181.8 18.6

SW I 1.2 1I.2 3.5 7.0 .9 .6 .21. 11 .3 #

WSWi .9 1.8 3.5 3.6 1.6 1 .8 .65 . 13.7 1 3.6

W : I 2 17 1 . 1 6 - 9 1 . 8.%7 . 1 . 6

N W :6 . 1 . 2 .5 1 .6 .9 .6 1 2 . ?7

N .6 2. 1 1.8 1.2 .5 .2 6.51 6.S

NNW I .7 I. . 7.3 6

CAL" //iDI~II .2 11,111

TOTALS 9.1 38.7? 1. 27.% 1. 11.2 1.4 k. .6 S 10.f 31.4

TOTAL NURSER Of OflsERVATioNSt 830

C GLOBAL CLIMAIOLOGY BRANCH PERCENTAGE FREOUCNCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATION NAME: ZIERIKZE! NL PEqIOD OF RECORD: 80-84,86

HONTH: DEC HOURSILSTI: 0300-000

................................................................................................................................................I WINO SPEED IN KNOTS

DIRECTION | 1-3 %-b 7-10 13-lb 17-21 22- ? 28-33 34-40 41-47 48-55 GE 5b TOTAL MEANIDOGR!ESI I 1 WIND

N o.8 .8 03 1.8 8.6

NNE .3 .3 .8 .3 1.6 13.5

NE .3 1.6 .3 2.1 5.0

ENE -3 .8 .3 1.3 2.6 9.1

E .8 1.6 4.2 .3 6.8 7.5

FSE .3 .8 2.1 .3 3.4 7.6

SE ,5 1.3 .5 1.0 .5 3.9 8.7

SSE .8 1.3 1.0 .8 3.9 10.6

S .5 3.3 2.1 2.9 2.4 9.7 11.7

SSW I .5 1.8 2.1 3.9 3.7 .8 .3 11.1 13.4

SW .3 2.9 4.5 6.6 1.8 1.3 .3 17.6 Ii.?

WSW .3 1.6 1.3 2.4 1.3 .5 ,3 7.6 14.0

W .8 *4 3.0 2.6 .8 .3 1.0 7.3 13.8

WNW 1.3 1.3 1.6 2.4 1.6 .3 8.7 10.8

NW I.8 .0 2.4 .3 .5 .3 5.2 8.9

WNW ,S 1.0 .8 .8 .3 3.4 8.5

VARIABLE 1.3 1.3 11.

TOTALS I 8.4 19.7 25.5 26.5 12.9 4.5 2.1 .3 100.0 10.9

TOTAL NUMBER OF ORSERVATIONS: 381

GLOBAL CLIHATOLOG BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE UF SURFACE WINO DTRECTION VERSUS WINO SPEEDUSAFEIAC FROM HOURLY O8SERVATION%AIR WEATHER SERVICE/HAC

STATION NUMBER: 063253 STATInd NAME: ZVrRIKIE NL P19100 OF RECORD: ?7-8bPfNTH: DEC HOURSfLST): 0600-0600

I WIND SPEED IN KNOTSOIRLCTION 1 1-3 6-b 1-0 11-16 17-21 22-?7 26-33 36-60 41-67 -18-55 GE S6 TOTAL MEANOEGrSI I a WIND

N I *b 6 . 1. .23.n 9.3

NNE I 6 2 b .6 .6 .6 2.6 II.?

NE .6 .2 . .2 1.6 5.6

ENE . 1.6 1.8 7.3

Sb Z.6 . 3.8 .6 7.6 7.6

(SE I . 1 .6 1.0 1.0 3.8 7.6

St I . 1.2 1.2 l.b .2 4.6 6.9

SSE .2 .6 2.0 1.6 .6 6.6 9.6

.,? 2.6 2.6 3.0 2.8 .2 11.2 11.5

55W 1.0 .6 2.2 S.6 6.6 1.3 15.0 13.6

SW 1.0 .0 6.6 5.8 1.2 .6 1b.2 jO.7

WSW .6 .2 1.? 2.6 1.2 1.6 .8 .2 6.6 16.6

W .4 .6 1.6 1.8 .8 3.6 .8 7.2 16.1

WNW b.6 p 3. 2.2 .6 .6 6.0 11.5

NW .2 .6 .9 .6 ,z 2.0 13.6

NNW .2 1.6 .4 .6 2.6 ?,3

VAR....E 3.2 .. 1.6 1.9

TOTALS I 8.6 16.2 2S.S 28.? 12. 6.0 1.6 .2 100.0 11.3

TOTAL NUMBER Of OSERVATIONS: 699

dk_

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINO SPIEDUSAFETAC FRO4 HOURLY OBSERVATIONS


STATION NUMBER: 063253 STATION NAME: ZIERIBZE- NL PEPIOD OF RECORD: 7T-84,86MONTH: DEC HOURSILSTI: 0900-IICO


DIRECTION I 1-3 10-6 T-10 11-lb 17-21 22-71 28-33 34-40 41-07 48-55 GE 56 TOTAL MEANC0OEGR.(SI I WIND

N .7 .* .9 .9 .7 3.6 9.9

NNE .9 1.1 .2 .2 2.5 6.8

NE .7 .7 1. 7.3

ENE .2 .7 1.1 2.3 6.5

E .7 2-1 2.5 1.6 7.7 7.1

ESE .t 2. Z.S .5 6.1 6.5

SE .2 .2 1.1 2.0 3.6 10.4

SSE .2 .2 1.6 2.7 .2 5.0 10.8

S .5 1.8 2.5 .9 1.8 .5 7.9 11.1

SSW .7 2.0 0.5 S.6 97 2.0 19.6 1. 3

SW .2 1 .6 1.1 2.9 1.1 .9 10.8 11.1

WSW .2 1.1 2.7 2.9 .9 .7 .5 9.3 132.

I 1.6 .7 2.5 2.3 .5 .9 ,7 9.D 12.1

WNW .5 .7 1. 1.10 1.6 5.1 I.?

NW I* 1. . .5 .2 3.2 11.9

NNW t7 .5 .9 .2 2. 10.8

TOTALS 7.2 17.3 1.1 25.7 12. S.7 1.1 100.0 I0.9


J L.

I I I

6LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRCCTION VERSUS WIN0

SPEEDUSAFtTAC FRO HOURLY OBSERVATIONAIR WEATHER SERVICE/AC

STATION NUMBER: 063250 STATION NAME: ZIrRIKZEr NL PERIOD Of RECORD: 77,79-86MONTH: DEC HOURSILSr): 1200-100


DIPECTION 1 3-3 4-6 7-10 11-16 17-21 22-?7 28-31 34-40 4I-N7 48-55 GE 56 TOTAL MEAN

(DE GR-E SI a WIND

.2 .9 .4 .9 2.4 8.6

NNE .2 .2 1.5 1.9 7.2

NE .9 .9 1.9 6.5

ENE .4 .7 1.3 .4 2.8 7.2

E .7 .9 2.6 1.1 5.4 T.4

ESE .4 1.1 1.3 .2 3.0 6.9

SE .4 1.3 2.6 .6 .2 5.0 8.1

SSE .2 .8 1.9 1.1 .9 8.5 11.I

S .2 2.6 2.6 2.8 1.7 .8 10.3 10.9

SSW ?.1 5.14 b.5 2.b 2.8 .2 19.2 13.2

SW .7 1.7 2.8 2.4 2.1 2.1 11.8 l3.1

WSW . .9 1.9 8.3 1.5 1.? 10.6 I.1

w .9 .7 2.4 1.1 2.1 .7 8.0 17.1

WNW I * 1.1 .9 2.8 3.1 .6 6.9 12.4

NMw .2 .6 .9 1.1 .9 3.7 12.3

NNW * .7 .9 .2 2.2 10.8

VARIABLE .2 .2 1.0

CAL" .# / / / / 2 !1

IOTALS 8.5 lb.F 28.S 27.6 12.1 9.3 .9 100.0 11.8

..........................................................................................................................


m .... nm.m-'- mm,,,,u mmmmm lmm

GLOBAL CLIMATOLOGY BRANCH PERCENIAGE FREOUNCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERTKZE NL PERIOD OF RECORD: 77.0-B4,86MONTH: 0EC HOURS(Lsri: 1500-1700


DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-?7 28-33 34-40 41-47 48-55 GE 56 TOTAL MEAN£OEGR'ESI I WIND

...... N...............;........;........;........;...... i.........................................................;........;......

Ii .9 I.? .7 .9 .z 4.0 7.5

NNE .9 .9 .7 2.6 4.7

NE .2 .7 .9 4.3

ENE .9 .7 .9 2.6 5.4

E .9 2.6 2.1 2.1 7.7 7.s

ESE .7 .9 1.9 .5 4.0 6.8

SE .2 .7 1.9 .7 .2 3.7 8.8

S5E 1.6 .7 .5 .2 3.0 8.2

S .7 1.9 1.2 4.2 .7 .7 9.3 11.4

SSW .7 1.6 3.7 6.5 3.3 .2 16.1 119.

SW .2 .7 1.9 3.3 2.8 .9 9.8 14.4

WSW 1.4 3.5 4.9 2.6 .7 .7 13.8 13.6

w .9 .9 2.6 2.8 1.6 1.9 .2 11.0 13.7

WNW .2 .5 .9 2.3 .7 4.7 12.2

N4 .5 , .2 1.9 .2 3.3 10.4

NNW 1.2 1.2 .2 .2 2.8 8.4

VARIABLE I .9 .9 1.3

CALM | III

TOTALS I 9.1 17.9 24.0 30.9 12.8 q.4 .9 100.0 10.9

TOTAL NUMBEP OF OBSERVATIONS: 429

-- aIlll i t i m i l lD mlDK

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFEAC FROR HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 77.79-86MONTH: DEC HOURSILSII: IRU-2000

WINO SPEED IN KNOTSDIRECTION J 1-3 N-6 7-10 11-16 17-21 22- 7 2a-33 34-40 41-47 48-55 GE 56 TOTAL MEAN(OEUR:E SI I W MIND" EN .2 .' 1.0 1.0 .2 WIN2.5 1C.3

NNE 1.0 119 3.6

NF 1.2 .6 .4 2.1 4.5

ENE .8 .2 .4 .2 1.6 6.6

E 1.6 1.4 3.5 1.6 .2 82 7.9

FSE .4 1 . 2 1.7 .6 .2 4.1 8.4

SE .4 .8 2.9 1.2 5.2 8.7

SSE .4 .2 1.2 1.7 .2 3.7 10.2

S .8 3.1 3.5 2.9 1.0 11.1 9.4

SSW .4 1.4 2.9 3.9 2.3 2.1 .2 13.2 13.8

SW .4 2.3 3.5 4.7 1.7 1.0 13.6 11.8

WSW .2 1.6 1.7 4.5 1.9 .6 .6 .6 11.7 14.9

W .6 .6 2.1 3. 3 1.4 1 . 9.3 13.6

WNW .5 .4 1.6 1. 7 .8 .2 5.4 11.2

NW .4 1.6 .6 .6 3.1 10.9

NNW .6 1.0 .6 2.1 8.3

TOTALS I 0.1 15.1 28.9 28.2 10.3 5.6 .6 .8 100.0 11.0

....... o. .. .. . .. .... , . ....* .. ,... . . . .. . . . .. . .............. ..... .... ................................... , , . , . . . . ° ° °.. . ,

TOTAL NUMBER OF OBSERVATIONS: sib

0,t.t

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO4 HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE NL PERIOD OF RECORD: 77,79-04,86MONTH: DEC HOURS(LS[|: 2100-2300

I WIND SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 1T-21 22-27 28-33 34-ND 41-47 48-S5 GE 56 TOTAL MEANIOEGREES1 I 2 WIND

N .2 1.1 .5 .7 .2 2.7 8.1

NNE .7 .5 .5 1.6 4.9

NE .5 .5 .2 3.3 4.4

ENE 1.1 1.1 .7 .5 3.4 5.7

E .9 .7 3.2 2.3 7.1 8.6

ESE .5 1.4 1.8 .5 4.1 7.0

SE .5 .7 1.6 1.1 3.9 8.4

SSE .7 1.4 1.1 2.1 .5 S.7 9.2

" S .2 1.6 3.8 2.7 2.1 .2 8.7

SSW .7 1.C 1.6 5.3 1.8 1.6 12.8 12.8

SW .5 2.7 4.1 5.3 1.6 .2 .5 14.9 i1.5

WSW .2 ,Y 3.7 4.1 .2 1.6 .7 .7 1l.7 15.2

w 1.4 1.8 1.8 2.3 .7 8.0 13.4

WNW .5 1.1 2.1 2.3 .9 .9 T.8 1.9

N ,5 . 1 .4 1.3 .2 3.7 9.6

NNW -.5 .2 .9 .2 1.8 6.5

............................................................................................................................................VARIABLE .5 .5 1.0

CALM /II/I/I iIUI/I/I hj/I j///0/ .5 Il//i/

TOTALS 8.5 17.2 27.0 30.0 9.6 5.5 1.1 .7 100.0 10.9

............................................................................................................................................


H

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SPEEDUSAFEI AC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 063253 STATION NAME: ZIERIKZEE NL PERIOD OF RECORD: 77-SbMONTH: DEC HOURSILSTI: ALL

WINo SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-0 43-NI 48-55 GE 56 1T14L MEAN(DEG6R-ES I 2 WIND

.........................................................................................................................................N *N .7 .7 .8 .2 2.8 8.8

NNE .5 • .6 .2 .1 .! 2.0 7.4

NE .4 .7 .5 .0 .0 1.7 5.7

ONE .5 .6 .8 .3 .0 2.3 6.7

E .9 1.6 3.2 1.8 .0 .0 7.0 7.8

ESE . 1. 1.7 .5 .1 3.9 7.3

SE .3 .9 1.7 1.2 .2 .3 8.9

SSE .2 .7 1.8 1.5 .5 4.3 10.1

S .8 2.2 2.5 2.9 I.8 .3 10.1 11.1

SSW .5 1.6 3.3 5.3 3.2 1.6 .1 .0 15.5 13.3SW .6 2.0 3.6 4.7 1.7 1.3 .1 13.6 11.9

" WSW .3 1.1 2.4 3.7 1.3 1.? .5 .3 10.8 38.8

W .5 .8 1.7 2.3 1.2 1.3 .5 8.8 lN.8

WNW .6 . 1.4 2.0 1.1 .8 6.3 11.8

NW .3 .7 1.2 .9 .5 .1 3.7 10.%

NNW .3 .7 .7 .6 .1 .3 2.4 8.

VARIABLE //.8 .0 .8 1.6

TOTALS I 8.1 16.8 27.3 28.2 11.7 6.1 1.2 .3 100.0 11.2


*f

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUINCY Or OCCURRENCE OF SURFACE wIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO" HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063253 STATION NAME: ZIERIKZE[ NL PE9100 OF RECORD: 77-B?MONTH: ALL HOURS(LSTI: ALL

I WINO SPEED IN KNOTSOIRECTION 1-3 4-6 ?-to 11-16 17-21 22-27 28-33 30-10 41-47 48-55 GE 56 TOTAL MEAN

0D GRlF ESI I WIND....................... . ... ....... 1:. ..... ... ..... ... ....... .......... .......... .......... ., ..o ... . ..N IN .8 I., 2.2 2.0 .8 .1 .0 1.0 9.2

NNE .6 1.2 1.2 .7 .1 .2 .0 3.8 7.7

NE .6 1.2 1.8 1.0 .2 .3 8.S A.3

ENE .7 1.2 1.7 1.% .4 .1 5.7 9.10E 1.1 1.9 2.1 1.8 * .1 .0 7.8 8.S

ESE .5 1.1 .9 .4 .1 .3 3.1 6.9

SE .5 1.1 1.1 .1 .1 .0 3.2 71

S5S .6 1.3 1.3 .6 .1 .0 3.9 7.3

S .9 2.3 2.2 1.5 .8 .1 .0 7.2 8.8

SSW .7 1.6 2.4 2.5 .9 .p .1 .0 0 8.5 10.9

sM .6 1.8 3.0 2.9 .9 .3 .1 .0 .0 9.7 10.6

WSW I .5 1.8 2.8 2.7 1.0 .7 .3 .1 .0 .0 9.0 IZ.5

A .7 1.8 3.3 3.1 1.2 .8 .3 .1 .0 .0 11.2 11.8

WNW .6 1.3 1.7 1.b .6 .3 .0 .0 .0 6.1 10.3

NW .5 .9 1.0 1.0 .3 .1 .0 .0 3.8 9.9

NNW .6 .9 1.4 1.0 .2 .1 .0 .0 9.2 8.8

............. ;........;.....................................................................................................,..TOTALS I 11.E 22.9 29.9 29.4 7.2 3.3 .8 .3 .0 .0 100.0 9.6

TOTAL NUMBER or OBSERVATIONS: 53936

* K

GLOBAL CL3MAIOLOGV BRANCH PE:FCINTAGE FREQUJ NCY OF OCCURRENCE OF SURFACE WINiD DIREACTION VERSUS WIND SPEEDUSAFLI AC FRO4 HOURLY OBSrRvAvioNsAIR W[ATHfR S[RVICE/MAC

STATION NUMBER- 0632503 STATION NAME: ZIFR3AZE: 4L PERI0D OF RECORD: 77-A?M0O9TH: ALL NOUSILSTY: ALL

CEILINGS ,orT 10 1400 FEET WITH VISIBILTIES 112 PILL UR "ORE

CEILINGS 2(,0 FEET OR MORE WI1TH VISIRILIIES 1/2 TO 7-1,2 MI1LES

MINO SPEED IN ANOTSDIRECTION 1 -3 A -6 7-1D Il-lb I17-21 22-?1 ZAJI3 34-90 4 t-% 7 96-55 GE $6 31361 MEANIDE GRr E S I I 111p0

KNE I .6 1. 1.3 .8 .1 .3 .0 4.0 7.6

NE 1 .7 1.3 1.9 1.3 .3 .1 S.? 8.4

IN 10 3.0 3 .3 2.9 3.4 .4 .1 6.5 8.7

L 1.8 3.9 3.1 1.8 .3 .3 10.6 7.4

ESE I .6 1.6 1.2 .3 .1 4.r 6. 3

SE I .6 1.6 1.2 .3 .1 .0 3.9 6.7

SSE 1 .0 I.g 1.9 .5 .1 .0 4.A 6.6

s 1.1 2.6A 2.5 1.5 .S .2 A.?7 A.3

SSW I .8 6 2.6 2.5 1.0 A8 .1 .0 .0 9.s 33.5

ShE .8 1.5 3.3 2.9 1.1 .5 .2 .r .0 30.0 11.2

WSW1 .E. 3..j 2.9 2.5 1.0 .6 .3 .1 .f .0 9.2 12.S

W .8 1.6 2.0 1.9 .5 . .1 . .0 6.5I 9.8

WNW~d .5 3. .8 .9 13 .2 .0 V0 3.3 8.2

NW .5 .6 .5 .94 .2 .3 .0 .0 2.3 3.6

NBA a . .7 .9 S5 .2 .3 .0 3.2 8.3

TOTALS 1 5.1 216. A 29.2 19.7 6.2 3.3 .9 .3 .0 .0 300.0 8.9

TOTAL NUMBER OF OBSERVATIONS: - 2318L 1

GLO3AL CLIMATOLOGY BRANCH PERCENTIGE FRN[UENCY OF OCCUR9ENCE OF CEILING VERSUS VISIBILITY

USAFEIAc FROM HOURLY ObSERVA7lONSAIR w(ATHt[R $(RVICE/MlAC

STATION NUMBER: 06325D STATION NAME: ZIt9IKZEE NL PEQIOO OF RECORD: 81-81MONTH: JAN HOURSILSTI: 0001-0200

CE ILING 9ISIRILIIT IN STATUTE MILLS

IN I GE GE G( GE GE G: GE GE GE GE rL GE GE GE GE GEFEES I 11 b 5 8 3 2 112 2 1 1/2 1 1/4 1 3/4 S/8 12 56/lb I/ 0

No CEIL I 16.6 26.6 Z .9 32.2 31.7 31.6 3S.0 35.9 35.9 36.3 36.3 36. 3 36.3 16.3 36.3 36.5

GE i00001 11.5 29.2 31.3 3%.b 36.1 37.6 38.2 39.1 39.1 39.5 39.5 39.5 39.5 39.5 39.5 39.7GE 38100 17.5 z9.4 32.S 38.8 36.9 31.8 38.9 39.3 39.3 39.7 39.7 39.7 39.7 19.7 39.7 80.0GE 160001 11.5 29.8 31.S 38.8 36.9 37.8 38.8 39.3 39.3 39.7 39.7 39.1 39.7 19.1 39.1 80.0GE 18o 17.S 29.8 31.S 38.8 36.9 37.8 3".8 39.3 39.3 39.1 39.7 39.7 39.7 39.7 39.7 80.0GE 12000i 17.S 29.6 31.1 35.0 37.) 38.0 38.7 39.5 39,5 80.0 41.0 80.0 80.0 80.0 83.0 80.2

br 10000 17.9 30.9 33.0 36.5 38.7 39.7 80.6 81.9 93.9 82.3 82.3 42.3 -2.3 82.3 42.3 Se .5GE 95001 18.1 31.5 33.1 37.4 39.5 80.6 81.7 83.0 83.0 83.8 83.9 83.8 83.8 83.8 3.8 83.6GE 80001 18.8 32.2 38.8 I8.8 80.6 81.1 82.8 88.1 95.1 96.0 86.0 #6.

0 86.0 86.0 86.0 86.2Gt 700 1 39.0 33.0 35.6 39.5 811,7 82.8 83.8 46,0 86.8 87.5 87.1 87.7 87.7 87.7 81.1 87.9GE 6C00 19.2 33.3 35.9 39.7 81.9 83.0 89.1 86.2 46.7 87.1 %7.9 87.9 87.9 87.9 87.9 8b.2

GE S^00J I0.1 35.6 39.3 88.1 86.2 87.3 88.8 50.5 S1.0 2.1 52.3 52.3 52.3 52.3 57.3 52.s(.E 8609 21.8 37.1 80.8 f5.8 87.9 89.0 50.1 52.3 62.7 %3.8 58. 68.0 58 .0 58.0 $6.0 58.2

GE %OUCI 23.8 81.5 85.8 51.2 53. 58.8 55.S 57.7 58.1 S9.2 69.9 S9.8 69.8 S9.8 59.8 59.bGE 3SO0 28.8 83.6 81.1 53.3 66.S 56.6 57.7 59.8 60.3 61.3 61.6 61.6 61.6 61.6 63.6 63.8GE 30009 25.9 87.5 6Z.3 58.1 60.1 61.3 62.8 66.0 65.1 66.5 66.1 66.7 66.7 6' .1 66.7 67.0

3 2SO01 27.0 S.3 66.1 60.9 63.3 68.8 6s.8 68.3 68.7 69.8 70.0 70.0 70.0 70.0 70.0 IU.2GE 2(001 27.8 51.6 56.8 62.9 65.7 66.7 68.0 70.8 71.9 73.0 73.7 73.2 73.2 73.2 73.2 73.8GE 18001 27.8 62.5 59.1 64.8 67.9 69.1 70.8 73.2 78.3 75.8 15.6 75.6 75.6 15.6 78.6 76.8bE 15001 27.8 68.0 60.3 67.2 70.8 71.9 73.2 76.6 l7.5 78.6 79.8 18.8 78.8 78.8 18.8 ?9.06.E 12U0 27.6 S.8 61.1 69.1 72.6 78.3 75.6 79.S 81.8 82.S 82.7 62.7 82.7 82.7 82.7 82.9

GE 10001 27.6 58.9 61.6 69.5 73.? 7.1 76.S 80.3 82.3 83.8 81.6 83.6 83.6 83.b 63.6 83.8GE 9001 27.6 58.9 61.6 70.2 78.1 75.6 77.3 81.8 83.8 89.9 8S.1 85.1 85.3 85.1 85.1 86.3GE t00l 27.6 65.1 62.0 70.b 78.6 76.2 78.8 82.7 85.5 86.3 &7.0 81.0 87.0 61.0 87.0 87.36E 7001 27.6 55.3 62.8 71.3 75.? 77.S 79.7 88.2 87.0 88.6 88.8 88.8 88.8 88.8 88.8 89.0GE 6U0l 27.6 55.3 62.8 71.3 ?5.2 77.5 80.1 85.3 86.3 89.8 9".1 90.6 90.5 90.5 90.5 90.7

GE 5009 27.6 55.3 62.8 71.3 76, 78.0 60.6 85.7 89.2 91.1 91.6 92.Z 92.2 92.2 97.2 92.86E 8009 27.6 55.3 62.8 71.3 75.2 78.0 80.6 86.2 89.8 92.2 92.7 93.3 93.7 93.7 93.7 98.0GE 3001 27.6 55.3 62.8 71.3 15.2 78.0 80.6 06.8 90.1 92.1 93.1 93.7 99.8 98.8 98.8 98.6GE 2001 27.6 55.3 62.8 71.3 75.2 78.0 80.6 86.6 90.s 93.S 98.0 99.6 95.1 96.1 96.3 96.8GE 2009 27.6 55.3 6Z.4 71.3 16.2 78.0 80.6 86.6 90.5 9..5 98.0 98.8 95.9 97.0 97.2 99.6

GE 09 27.6 55.3 62.8 71.3 15.2 76.0 80.b 66.b 90.5 93.s 98.0 98.8 95.9 97.0 97.2 100.0....... .... .. .. .. .. ... . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . ..............°.°....... . . e~ . .e.. ....


46-

- IUnm•mnmnnnm n n m

GLOBAL CLIMATOLOGY BRANCH P(CENTAGE FR7GUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAF TAC FROM HOURLY OBSERVATIONS

AIR W(ATHER SERVICEI/AC

STATION NUMBERs 063250 ST ATION3 NAME: ZIERIKZE: NL PERIOo Or FECORO: 61-6S.B7MONTH: JAN HOURSILSI: o3Uo-0OSj

LEILING VISIBILITY IN STATUTE MILLS

IN I GE GE GE GE GE G- GE GE G( GE GE GE GLE GE GE I.FEET I 10 b 5 N 4 2 112 2 1 ifZ I 1/ 1 3t SIe 1l2 5/lb 1/ 0

. .°....'.°....°.....°......'.......°.................'......*................... ° ....... °...'.................

NO CElL I IS.] 28.2 Z9.9 j.7 36. J7.N j7.9 38.0 i8.7 39.2 19.0 39.6 39.9 39.9 39.9 40.1

GE 200UO1 15.9 3U.5 31.9 37.1 0. 3 i.8 0.8 N1. N2.1 12.6 %2.8 N3.1 93.3 93.1 93.3 93.5GE 181001 I5.9 30.8 32.1 317. 90.6 93.0 1.0 91.7 12.9 92.8 91.1 93.3 93.6 93.5 93.5 93.7GE lbr00 15.9 0.8 32.1 37.9 90.6 91.0 11.0 91.1 2.9 92.8 913.1 93.3 43.S 93.6 93.6 93.7GE 1400n1 15.9 30.8 32.1 37. 903. 91.0 93.0 i1.7 929 92.8 91.1 3.3 93.5 93.6 93. f3.1GE 12n0o1 IS.9 31.0 32.3 37.6 90.8 91.2 91.2 93.9 92.6 93.3 93.3 93.5 9$.1 93.7 93.Y 99.0

GE 100001 16.4 33.0 31.6 O0.1 %3.5 44.0 44.0 9N.6 96.6 46.0 94.' 96 . 96.7 b.7 46.7 %b.9

GE 9o00 36.9 33.1 3tN .9 9. 5 N9.0 99. .N 04.9 15. 3 46.z 96.7 96.9 97.2 Nl.9 41.9 N47.% 47.6

GE 80001 16.9 33.7 36S .6 3.2 9.6 96.3 9S.3 96.7 98.1 98.5 99.7 99.0 99.2 99.2 99.2 99.96EI 7301 36.9 33.9 556.8 91.5 9. 95.3 6.3 96.9 98.3 99.7 49.0 99.9 99.7 99.1 99.? 99.9bE 60001 16.9 34.9 36.2 43.9 1S.3 95.8 9S.8 97.6 99.0 99.9 9 9. 50. 3 01 60.3 67.3 0.6

GE 600| 17.5 31.1 39.6 96.3 98.7 99.2 992 53.3 62.6 53.1 63.3 63.8 S9.0 59.0 69.0 69.IE 96001 j8,0 38.3 90.8 96. 99.9 60. 60. 52.9 3.b 69.1 69.9 69.9 66.. 6.1 6.0 C1.9

3E 00 20.0 92.3 99,9 53,3 69.6 65.9 66.6 57.9 69.2 69.7 69.9 60.9 60.6 60.6 60.6 60.96F .00I1 21.0 99.6 91.9 5.0 67.6 58.1 58.8 61.0 62.9 62.9 6'.1 63.6 63.8 63.8 63.8 69.0.[ 300|01 2.3 99.9 52. 9.2 62.9 63.3 6.O0 66.3 6.9 68.6 69.8 69.2 69.5 69.5 69.5 69.7

GE 2-001 23.2 1.5 59.7 61.5 65.1 65.6 66.3 68.8 10.6 71.3 71.6 72.0 72.2 72.2 72.2 72.9GE Z(00 1 2-.9 53.6 56.9 69.0 67.9 68.3 69.0 11.5 13.3 71.0 79.3 79.7 79.9 74..9 19.9 75.2bE I ,P 21.9 S4.2 69.1 656 69.6 69.9 70.6 73.1 7.9 75.6 76.9 76.3 76.6 76.S 16.S 76.6

GE I U1 21.1 56.1 69.0 66.6 13.9 73.8 1Z. 76.9 77.2 11.9 719.1 78.6 78.8 76.8 7R.8 79.0

I.E l1001 29.1 565 63.9 68.8 72.9 79.6 76.6 78.8 80.9 81.8 62.0 82.5 82.7 92.7 82.7 82.9

,E 10001 2q.1 56.7 61.0 69.5 73.6 76. 9 16.8 80.0 82.0 P2.9 81.1 83.6 63.8 43.8 83.8 89.1

Gf 901 29.1 6.9 63.3 69.9 7, 76.1 77.9 80.6 82.7 93.8 89.3 89.6 89.7 89.7 A9.1 85.0GE 001 2 . b7. 6. 702. 16.5 77.9 83.3 83.9 9s.0 6 .% 86.9 86. 96.3 86.1 96.3

E 7001 29.1 57.2 63.6 70.8 7,9 1.7 79.3 83.1 6.9 07.0 87.7 9.2 68.9 R.9 8.9 P8.6GE f0r l9.1 67.9 63.7 73.1 76.6 78.9 80.2 85.0 87.2 88.8 89.7 90.9 90.7 90.7 90.7 90.9

G.E Su00 29.3 51.9 61,7 T.3 76.6 78.6 60.6 66.6 88.2 89.7 9n.9 91.6 91.8 91.8 91.8 92.0GE 9001 29.1 17.9 61.7 71.1 76.9 79.0 813 86.3 88.6 90.9 97.3 93.2 93.9 93.9 93.9 93.6G! 3001 24.3 67.9 61.7 73.1 75.9 79.0 63.5 86.6 89.3 91.3 97.7 99.3 99.S 99. 99. 99.8.. 2U01 29.1 57. 63.7 73.3 15.9 79.0 83.5 66.6 89.5 91.6 93.2 99.5 95.0 95.2 9S.2 96.1GE 1..01 2.1 S7.9 63.7 713.1 76.9 79.0 83.6 86.6 89.5 91.6 93.2 99.S 95.0 9S.9 96.9 99.5

IE nj 29.1 S7.9 611 73. 1S.9 79.0 83., 86.6 89. 91.6 93.2 9%.S 9S.0 9s.4 96.9 300.0

TOTAL NUMBER Of OBSERVAIIONS: 939

G.LOBAL CLIMATOLOGY RRANCH P(EIE4EAOE FR OQUEEECY Of OCCURDEAILf Or CfIINJ AfilSUS V15361t177USAFEI AC FROM 9400917 ObSLRVATIONSAIR WEAT7949 SFE4VIC(/1460

STATION NUH8LR: 063253 STI ON316 NAPIE 7I[6I67t1 41 9313300 3Or ECORO: 16.80-61"0N4394: JAN NOURSILS,33: 3-06('0DGV

CE I16 ISIPIL IT? Y Ift SIATUI F *04I3L S .IN GE (.E GE GF GE 6: GE GE G 61 (it f, 09 63 E .OF t

FEET I 3 6 ; z U~3 2 1132 1 1/4 1 1"4 , /a li2 %116 1/4 II

NO CEL 1 114.9 'S.4 I's.4 27.6 29.. 50. 1 30.3 10.9 1.1 12. 3 &1 .3 12?. 3 12.5 32 .5 311'. . li.9

6,E 200001 is I.3 ? 7. 4 1.6 10.5 32.S 33. 1 33.9 34.4 34.6 N5.6 IS .a '5.6 36.3 16.3 36.0 1 C. -CGE 1s0001 15. 3 21.4 21.6 30.5 32." 33.17 31.9 34.4 14.6 15.6 315.4 it 3%.6 36.0 16.0 36.0 '6.4(A 1bC00 I IS. 3 27.4 21.6 30.5 32.11 13.17 33.9 34.4 314.6 35.6 st5 .A Is .A 16.0 16.0 16.3 6 .4(.t I4nao IS 153 27 .41 ZI .6 30.5 j?.' 13. 7 33.9 34.4 34.6 15.6 15 Vk sr..a It b. 0 16.G 16.0 3b.4GE 120001 IS.13 21.b 211.1 31.1 S3.1 34.4 34.6 35.2 35 .4 36.6 S6.6 16.6 36.6 16.6 36.6 '. .

GI 100001 IS*.9 29.2 Z4 .4 33.1I 35.4 36.6 36.6 31.4 1.6 16.9 3K6.9 IA .9 19.1 39.1 39.1 !9.S(,E 9n(301 16.2 30.1 132.3 341.6 3.' 6S.4% 301.6 39. 3 39.1 41.1 %3. 3 431.3 41.5 N1.5 43.5 411.9C;f 6(1003 *6.6 12. 5 J1.5 37.2 39.5 it 10. 7 40.9 41.17 4#2.1 43.4 413.6 43.6 43.6 43.6 4 1.6 04..E 1000 I 6.4 IN . 9 33.9 311.0 40. 1 41.5S 41.9 42. 1 43.1 44.4 -44. b 44.6 44.6 44.6 144.8 4 5.

f.E 6000O1 11.0 33. 1 34 .1 361.2 40. 5 41.1 ? 42 .1 42. 9 14 3.2 4 4.6 44.41 44.6 45.0 45.0 45.0 '.4

G-E 000 I1: 376 IS. 36.:4 40 43. 44.2 44.6 45.4 415.8 41 4 1. 1.4 41:6 47.6 I:.6 4 1.9GE 4#*;00 8 A6. 36. 3a . 43. 46. b1. 49 46. 49. ~05 '11 S. 50.9 039 53. 51GE 40001 d10. 5 41.9 44.U 49.1 51.1 S2.6 S3.2 541.0 54.4 55.0 56.0 56.0 56.2 ';b.2 56.2 56 .6GE 35001 21. 3 44.6 46 .3 S3.4 56."1 ST1I 51.5 56. 3 56.1 60.1 6 . 3 60.1S 60.5 60.5 60.5 6L.96r 3ro00I 2Z. 7 46.1 6 2.4 51.1 60. 3 62.41 61.6 62.8 6.3.2 64 .6 64l.4 64.6 65.3 65.0 b65.0 b, .4

GE 25001 23.7 52.3 56.2 61.6 64.6 65.6 66.3 61.3 61.1 69.5 69.1 64.1 b9.9 69.4 69.9 10.14E 23001 24.3 54.0 51 .9 64.2 66.9 66a.5 66.9 70.5 73.0 72.6 71.0 73.0 13.2 13.2 11.2 1 3.6GE 14001 1%.17 56.4 60.3 66 .S 69.3 70. 713.6 13.2 13.6 15 .5 15.17 ? 1.1 15T.9 15.9 75.9 lb6.3GE 15001 24.1 51.9 62z.2 66 .9 11.91 13.6 714.6 11. 1 1?.? ?9.5 19.6 14.6 19.6 19.6 79.6 GL6E 12001 24.0 -4 .5 63.2 10.3 13.1 15.5 16.5 19.1 19.6 62.0 62.2 62.2 OZ.% 02.4 62.4 62.4

GE1 131001 2%.f) 58.9 64.0 13.0 14.2 16.5 11.5 60.0 60.& 63.0 63.4 63.4 63.6 63.6 63.6 64.0(IE 900 1 2S.1 56S.9 64.0 71 .% 15.3 ?7.13 16.3 611.2 62.2 64 .3 64.7 641.1 64.4 44.9 64.9 05. 1GIf sool 25.0 59.31 69.6 72 . 4 T59 re. 5 79.6 62.6 63.6 46.3 66.1 86.1 ? 6.9 46.9 66.9 61I. 3bE 100n 25. Sa 9. 65.l 4 13:. 11:.1 19. 6 60.6 64.5 65.S9 46. 69. 49.:0 69. 69. 69. 6,09.6

GE 6001 25.0 59.1? 65. 13. 11. 79. 63. 65.1 61.3 *. 93.6 a 6 92 932 3.2 13.b

bE ! Oo 25.31 59.7 65 .4 13.4 11. 3 60.2 62.6 66. 5 66.5 93.6 92.2 92.2 92.6 91.0 93.0 9 3 . 3GE 4001l 2 .0 n 9.7 65.4 13.4 1o7.' 4 0.2 62.6 66.S 69.0 92.8 91.S 91. 7 94.3 94. 7 941.1 9S.3GE 33301 25.0 59.1 65.4 73.4 17.3 60.2 62.6 66.7 69.? 93.0 91.9 9%.3 99.9 95.3 9%.3 9S.7AE -001 25.0 59.1 65 .4 73.4 71. 3 40.2 62.8 66.1 69.2 93.0 91.9 94.3 95.3 95.1 91;.1 96.9

GE 100)1 2ts.0 59 .1 65b. 4 73.% 71.1 60.2? 62.6 66. 7 69.2 93.0 93.9 44.3 95.1 916.3 96.5 94.6

GE at 2S.0 59.1 65.41 13.4 17. 3 60.2 a2.6 46.1 6 9.2 91.0 94.9 946.3 95.7 96.3 96.5 100.0

TOTAL. NUMBER OF I6(6705 1

63.0763 CLIHAIOLOGV BRANCH4 PE147 1571tf FR:QUI9CY Or OCCLJRPII4L Of CF11361 .76515 915381L337USAF I 7 aC FROM 140093. 08519taTOSAIR 016419 SER663CIPAC

STATI0N N131999: 065732 SA 1319 MkNAME : 27I R A 'l '4L "L POU 07 937090 : 76.'60-45.S8790679. JAN 340USI1Tl7: J91V1-33I.I

V*l I9 V5S" @I SL* I I' '' 0 S ITUII L'5I o it 61 5f 61 GE( I, r 1 G .te GE 6 r It Gr .1 6 (Ij u

11( I I3 6 5 3 12 2 1 112 13/9 1 -/" . /a 112 '/It 1/9

NO CEI11 15.5 711.9 23.6 2%.2, 2%." 1S.2 2S." .2.3 di.7 '6.b 2A.? .9.l 29.1 79.3 .9.3 V.

61 1U0003 17?.9 01 6. 1 24.31 I 3. 2 30.1 It. 2 33.9 1S. 3 33.9 39. 7 3.9 iI IS. 3 %S*5 S, S C, I.1 3&000l I31.0 26.7 Z9 .3 3S. 30.9 it 3.2 33.9 13. 3 33.9 39.7 1 39.9 'S.3 Ss.3I qs.s 3-.1 35.

LE IbroO I 37.9 28.1 29. 3 30 .2 so. 31. 2 31 .9 33. 3 13.9 14.71 1' q... 35. 35 3 IS".7 -1.1I 3con II 7. 6 .'6.9 29.1 30.9 I~ 31. 4 33. 3.6 33.S 319. 1 39.9 P 1113.5 35.s IS.71 51.1 'b.LG )o I200 137.9 '9.5 53 .1 31.0 31 .6 'RiO 321.2 lot.t o.1 3 % 3.S 3.7 1 6.2 16.? s8.9 36.9 'b.b

E. L UI 03.3 C0.71 33. 3 9.1 4.3 3i. 3 36.9 37.94 37.6 39.5 S 90. 3 9I.3 q. 1 9131.7 1 931.7? 91.9 431.9 4,.1"t 90001 20.1 39t.5 35.3 37.0 is .2 319. 3 39.7 93.7 9 2.b 93.9 %1 .6 A.9.0 %%..1 99.9 of9.. %t.sLf a83i0I . I. 1 5. 16t,. Z 3f.% 39. 90.9 93I. 3 93 .9 99%.2 95.0 4,.5 - 9It. 9 96.3 96.35 -t t8* 9.5LIE it13 21I I. I 3i. 7 36,.6 39 910.6 %3.5 91.9 9i. 2 915.0 4s.9 4f,.. 9 6.7 96.9 . I.a '.1 ft7I.3I6F 6CU001 23.3 1 76., it..6 39.0 90.7 9Il.71 92 .1 44-1 95.2 4b. I 9%h.5 96.9 %9I.3I .7I.3 94. 3 7 .5S

I.1 5720 1 2.9 39.2 39.0 93.9 93 . 9 5.0 95.5 ft?. 7 99R.6 99.% 4'. .4 1. ? 51,.%9 6.8 b S .6 b C .61,L-i 9u081 22.5 39.7 1 93.7 93.6 95s. 4. 9 97.3 99.6 so0.91 S 3.2 " 3.7I -?. 52. 3 12.S -,.'. 15 5.I61 4101 DoI21. 3 921.9 4 9.3 97. 3 99.9 So.* 5.9 S53.9 55.0 %5.6 56 . 2 s6.6 56.3 671l S ?.0 G I7..,61 31 ,30 291.9 45.c 96.7 I 5S.2 S3.11 55.0 55.0 56.31 59.3 60.31 b' . S 63 .0 63.2 b3. 63.9 II.bLE 30LD I2I.9 97I.7? 53 .Q 59.6 57.0 56'.5 59.3 6Z.0 6. .2 691.0 b-. 65 #%.3I b 5. I b5. 6." 65.3I

.1 z5001 27.5 50.3 S2.9 57.9 60.' 63.6 63.0 65.7 66.9 67.3 6-.6 69.0 b9 69.9 b9.9$ 69.6bI 1'31 2 9 i.3I 62 55.7 60.5 b63.1 691.9 66.1 66.6 10.0 70.9 r73.7 72I. I .3 72. S2. ?.S '2 -I 3601 26.7I 55.3 57.6 63.0 65.. 67.3 b9.2 72.1 791.0 75.L 7t,.0 34.1 1. 6.9 16.Q 76. 7. 31.I I % onj i.. % 5%.9 63 .5 66.3 66.- 73. 3 72.7 76.71 76.5 79.S Sn.6 013.0 63I.2 Z 63i.9 63 .9 p3.6

6[ 31 30r]l.6 56 a.51 b 6.? 66.9 73.? 73. 3 79.6 76.7 1 31.0 02.11 934 1.1 3.9 go.3 I of.3I 69.3 99.5

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GLOBAL CLIMATOLOGY RRANCH PERCENTAGE FREGUENCY OF OCCURPENCE OF CEILING VFRSUS VISIBILITYUSAFEI aC FROM HOURLY OBSERVATIONS

AIR EATNER SERVICE/MAC

STATION NUMBER: 063250 %1ATIO NAME: ZILRINZEE NL PERIOD OF RECORD: 7880-87MONIt]: JAN HOURSILSTI: 1500-1700

oCEILING G GE G GE G G VISI8ILITV IN 5rirurf MILLS

GN GE GE GE GE GL GE GE GE GE GEFEE? 10 6 5 3 2 112 2 1 112 1 1 / 1 3,1 5 8 12 516 l I6 0

NO CEIL 11.8 16.8 17.9 19.5 20.6 20.8 21.2 3.0 a 2..9 25.2 25.2 25.2 25.2 25.2 25.2 25.2

LE 20001 36.7 22.1 23.2 25.4 26.7 27.1 27.6 29.5 31.:5 I.7 31.7 31.7 1.? 31.7 31.7 33.7G£ 160001 I6.7 22.1 23.2 25.6 26.7 27. 1 27.8 30.0 32.2 12.6 32.6 32.6 32.6 12.6 32.6 32.6

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rrt NuMptW Of ofSFIVAItOms: 457

liii

GLOBAL CLIMATOLOGY ARANCH PERCENTAGE FREQUENCY Of OCCURRENCE oF CEILING VERSUS VISIILITYuSAFETAC FROM HOURLY OBSERVATIONS

AIR WEATHER SERVICEIMAC

S1AION NUMBER: 063250 STATION NAME: ZIRIKZEi NL PERIOD OF RECORD: 78,80-B?MONTH: JAN HOURSILSTI: 1800-2300

CEILING VISIBILIFY IN STATUTE MILESIN GL GE GE GE GE EE GE GE GE GE GE GE GE GE GE bE

FEET lo 6 5 . 3 2 112 2 1 112 1 1/4 1 3/8 5/8 112 5/16 1/4 3. . . . . . . . . .........j .. . . . . . .. . . . .. . .............. ... ... * . . ... . . ..... . . .. ... .. . ... ..... .

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G[ 0001 28.2 37.6 43.6 48.9 18.5 49.9 51.3 53.5 54.2 Ss.3 55.6 55.8 56.3 56.5 56.5 56.7

u[ 25001 26.2 42.8 46.0 50.6 54.5 56.1 57.6 59.7 60.4 61.5 61.9 62.2 62.7 62.9 62.9 63.1GE 2C00 26.8 83.9 47.8 52.9 57.2 58.8 60.4 62.7 63.5 64.5 8.9 65.2 65.8 66.0 66.0 66.1GE 18001 26.9 85.6 49.7 58.9 59.7 61.5 63.1 65.6 66.3 67.4 67.7 68.1 68.6 68.8 69.8 69.0GE 15001 27.1 47.2 51.5 57.0 62.7 64.7 66.3 69.2 69.9 71.1 71.7 72.0 72.5 72.7 72.? 72.9lE 1203I 28.0 *9.2 53.7 59.9 65.6 67.7 69.3 73.3 74.0 75.4 76.3 76.6 77.4 77.5 77.5 77.71

GE ln003 28.n 89.4 53.8 60.2 66.3 68.4 70.1 74.3 15.0 76.6 77.5 77.9 78.6 78.8 7q.8 79.0

6E 901 28.0 49.7 54.5 61.5 67.4 70.2 72.0 76.8 77.5 79.1 83.0 80.4 81.1 81.3 81.3 81.5

.. AD0 28.7 90.1 55.4 62.7 69.2 12.0 74.0 79.5 80.6 82.4 83.2 83.8 88.5 84.7 84.7 88.8G 7001 28.0 %0.3 55.6 63.6 70.6 73.8 75.8 83.6 82.7 88.8 85.7 96.5 87.2 87.3 87.3 87.5GE 6201 28.0 ;t.% 56.3 64.0 70.9 74.2 76.1 82.2 83.4 96.1 87.3 88.1 88.8 88.9 88.9 89.1

GE 5001 28.0 50.8 Sb. 64.3 71.S 75.0 77.0 83.2 84.8 87.5 89.3 90.8 91.1 91.3 91.3 91.4GE 8CO1 28.0 50.6 56.3 68.3 72.1 75.2 77.2 83.4 85.0 88.2 90.2 92.0 92.9 93.6 93.6 93.8G Tool 2P.0 50.8 56.3 64.3 72.0 75.2 77.2 83.6 85.8 88.8 91. 93.2 95.2 95.9 9S.9 96.3GE 20191 8.0 n s.8 S&.3 64.3 72.J 75.2 77.2 83.8 85.6 88.9 91.6 93.8 95.7 96.6 96.6 97.5

GE 31301 2.0 60.8 56.3 64.3 72.0 75.2 77.2 83.8 85.6 88.9 91.6 93.8 95.7 96.8 96.8 99.1

GE 01 28.0 50.9 56 .3 64.3 12. 1 75.2 77.2 83.8 85.6 88.9 91.6 93.8 95.7 96.8 96.8 190.0

10TAL NUMBER OF OBSERVATIONS: 56i

GLOBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

J$AFE IC FROM HOU9LY OBSERVATIONSAIR WEATHER SERVICI/MAC

STATION NUMBER: 063250 STATION NAME: ZIERI8ZEr NL PEQIO OF RECORO: 78,81-87

MONTH: JAN #4OURSCLSTI: 2302-2300

CEILING VISIBILII Y IN STATUTE MILESIN I GE GE G E GE GE G- GE GE GE GE G.0 GE GE GE GE 6E

FEEr I Io 6 5 N 1 2 112 2 1 112 1 1/4 1 3/N 518 112 5/16 1/4 0

NO CEIL I 16.8 Z3.1 Z4.6 27.2 27.8 29.3 30.1 31.N 32.1 32.5 32.5 32.5 32.5 32.5 32.5 32.5

GE 200001 16.8 2%.C 25.9 29.3 29.9 31.8 32.5 33.8 38.6 35.0 3S.0 35.0 35.0 35.0 35.0 35.UGE 180001 16.8 28.8 z6.3 Z9.7 3D.8 32.3 33.5 34.8 35.5 36.1 36.1 36.1 36.1 36.1 36.1 36.1LE 160001 16.8 28.4 26.3 29.7 30.9 32.3 33.5 34.8 35.5 36.1 36.1 36.1 36.1 36.1 36.1 36.1GE 140001 16.8 24.8 26.3 29.7 30.R 32.3 33.5 38.8 35.5 36.1 36.1 36.1 36.1 36.1 36.1 36.11E 120O01 16. Z8.6 26.5 29.9 31.0 32.5 33.8 35-0 35.9 36.7 36.7 36.7 36.7 36.7 36.7 36.7

GE 100001 17.8 26.1 28.0 31.6 32.9 364. 35.7 36.9 37.8 38.9 31.9 38.9 38.9 T8.9 38.9 36.9GE 9C00 17.8 26.5 28.7 32.7 38.0 35.5 36.7 38.0 38.9 40.1 NO.3 90.3 N0.3 N0.3 40.3 40.3bE BE000 17.6 27.N 29.5 33.5 38.A 36.3 37.6 38.9 39.9 I .6 42.0 42.0 82.0 82.0 82.0 42.0bE 7rUOl 16.0 27.6 29.7 3N.2 35.% 36.9 38.2 39.5 60.6 62.5 N?.? 92.7 '2.7 82.7 N2.7 82.7GE 60001 18.0 27.8 Z9.9 38.4 5.7 37.2 38.8 39.7 80.8 82.7 82.9 82.9 82.9 92.9 92.9 92.9

GE 50001 18.9 29.1 31.8 36.9 38.4 39.9 41.2 92.9 83.9 85.9 96.1 46.1 86.1 '.6.1 '6.1 66.1bE 89001 19.5 30.8 33.1 38.4 39.9 81.8 82.7 48.8 45.9 87.3 4.7.6 91.6 67.6 417.6 87.6 97.6GE 2COOl 22.3 34.6 37.6 82.9 68.4 85.9 97.1 88.8 69.9 52.0 52.2 52.2 52.2 52.2 52.2 52.2bE 35001 24.0 38.2 81.8 87.6 89.3 90.7 52.0 53.7 S8.8 56.9 571 57.1 57.1 57.1 57.1 57.1,E 30001 26.3 83.1 47.1 S3.1 55.0 56.7 58.0 59.7 60.7 62.8 61 63.1 63.1 63.1 63.1 63.1

E0 Z,01 27.C 97.3 51.6 58.2 60.9 62.6 63.9 65.6 66.9 69.0 69.2 69.2 69.2 69.Z 69.2 69.Z

GE ZOO 27.0 48.6 5Z.9 60.1 62.p 68.5 65.8 67.7 69.0 71.1 71.3 71.3 71.3 71.3 71.3 71.3

bE 18001 27.0 89.3 53.5 60.9 63.9 65.6 66.9 68.8 70.1 72.2 72.8 72. 72.9 72.9 72.4 72.9LE IS001 27.0 S.5 55.6 63.7 66.9 68.8 70.1 72.0 73.5 75.6 75.8 75.8 75.8 75.8 75.8 75.8GE IooI 27.0 53.6 56.7 68.8 68.- 71.3 72.6 75.2 76.6 79.0 79.2 79.2 79.2 79. 2 79.2 79.2

GE 1i00 7.0 53.6 56.9 65.8 69.8 72.0 73.2 16.0 77.5 80.0 80.3 80.3 60.3 80.3 80.3 60.3GE 9002 27.0 51. 57.3 67.1 733 78.1 75.1 78.1 79.6 82.2 8.8 82.8 82.8 82.8 82.6 82.8.E 9001 27.0 52.0 57.7 67.7 72.r 78.7 76.0 79.2 80.7 83.q 86.1 t9.1 88.1 88.1 88.1 89.1GE 7001 27.0 "2.2 59.2 68.8 73.2 16.2 77.5 80.9 62.1 85.8 86.8 86.8 86.6 86.6 86.9 86.8GE 601 ZT.C 5.2 58.. 66.6 7.7 77.3 78.6 82.8 88.3 87.7 89.3 88.5 88.S 88.5 88.9 88.5

GE SOO 2T. 52.4 58.6 69.0 7. 78.1 79.6 84.5 86.8 91.7 92.6 92.8 93.0 93.0 93.0 93.0GE 0o 27.0 52.8 58.6 69.0 78.5 78.1 79.6 88.9 87.0 92.8 91.8 98.1 94.5 98.5 98.9 98.5GE 1002 27.0 92.8 58.6 69.0 78.5 78.1 19.6 85. 3 87.5 93.8 9S.| 95.3 96.0 96.0 96.0 96.0GE 2002 27.0 92.6 58.6 69.0 7.5 78.1 79.6 85.1 87.5 93.8 9".1 95.3 96.0 96.2 96.2 96.6GE 3002 27.0 52.8 58.6 69.0 78.5 78.1 79.6 65.] 87.5 93.8 9S.1 95.3 96.0 96.6 96.8 99.6

rE 02 27.0 52.8 58.6 69.U 74.5 78.1 79.6 85.1 87.5 93.8 9S.1 95.3 96.0 96.6 96.8 100.0

TOTAL NUMMER OF OBSERVATIONS: 811

' ..

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUE4CY OF OCCURRENCE OF CEILING VENSUS VISIBILITYUSAFET AC FROM HOUQLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 SIA7ION NAME: ZIERIKZEE NL PERIOD OF RECORD: 78.80-87MONTH: JAN HOURS(LSTI: ALL

...... ;....................................... I. . . . . . . . ...............::: : :: :: : :: :............................................

CEILING VISIBILITY IN STATUTE MILLSIN I GE GE GE GE GE G G E GE GE GE GE GE GE GE GE GE

FEET I 10 6 5 4 3 2 I2 2 1 1/2 1 1/4 1 /4 S3/8 112 5/16 1/4 0

NO CEIL 1 14.9 22.7 23.6 25.8 27.1 27.8 28.2 29.5 30.0 30.6 30.7 30.8 31.0 31.0 31.0 31.1

GE 200001 16.3 26.0 27.2 29.9 31.5 32.3 32.8 34.2 34.8 35.4 35.5 35.6 35.8 35.8 35.8 35.9bE 180001 16.3 26.1 27.3 30.0 31.7 32.6 33.1 39.5 35.1 35.8 35.8 36.0 36.1 36.1 36.1 36.3GE 160001 16.3 26.1 27.3 30.0 31.7 32.6 33.1 39.5 35.1 35.8 35.8 36.0 36.1 36.1 36.1 36.3GE 14000 1 16.3 2b.2 27. 30.1 31.9 32.6 33.2 34.6 35.2 35.9 35.9 16 1 36.2 6.2 36.2 36.9GE 120OO1 16.9 2b.5 27.a 30.7 32.9 33.3 33*9 35.3 35.9 36.6 36.7 36.8 37. 0 37. 37.0 37.2

GE 100001 18.0 29.3 33.8 33.9 35.9 36.9 37.5 39.0 39.7 9.4 40.5 40.7 4O.8 90.9 40.9 41.0GE 90001 18.2 29.9 31.5 34.9 36.8 37.9 38.6 90.2 90.9 9.1 :7 43 8 42.0 42.2 92.2 47. 2 92.4GE 80001 18.5 30.9 32.7 36.3 38.3 39.4 90.2 92.0 42.9 43.8 41.0 49.2 99.9 99.4 44.4 44.6GE 7n0 18.7 31. 3 33.1 36.9 38.9 90.0 90.7 92.6 43.5 99.5 44.7 44.9 95.1 95.2 45.2 55.3bE b100 18.8 31.6 33.5 37.3 39.3 9009 41.1 93.1 99.0 95.0 45.2 45.9 95.6 45.7 4.7 45.8

GE 5-001 19.5 33.5 35.7 39.8 42.0 93.2 4.0 96.0 97.0 48.0 48.3 48.5 48.7 98.7 48.7 46.9GE qsoo 20.7 35.0 37.4 91.6 43.9 95.2 96.0 98.0 99.0 50.0 5).3 50.5 50.7 50.7 50.7 50.9GE 9 001 21.9 38.4 92.1 95.8 98.7 99.6 50.9 52.5 53.5 59.6 59.9 55.1 55.3 55.3 55.3 55.5GE 35001 23.1 90.9 93.9 99.0 51.5 52.9 53.9 56.0 57.0 58.1 59.9 58.6 58.8 58.9 58.9 59.0GE 30OO1 29.9 49.8 98.1 53.9 56.0 57.5 58.5 60.8 61.9 63.0 63.3 63.5 63.7 63.8 63.8 63.9

GE 25001 26.2 98.0 51-5 57.2 60.1 61.8 62.8 65.2 66.9 67.5 67.9 68.1 68.9 68.9 69.4 68.6GE 2ro00 26.9 99.8 53.5 59,6 62.7 69.5 65.7 68.2 b9.5 70.6 71.0 71.2 71.4 71.5 71.5 71.6GE 19001 27.3 51.3 55.3 61.5 69.1 66.8 68.1 70.8 72.0 73.2 73.6 73.9 79.1 74.1 74.1 74.3GE 15001 27.8 53.1 57.4 69.0 67., 69.8 71.2 79.2 75.6 76.9 77.4 77.6 77.9 77.9 77.9 78.1GE 12001 29.1 59.2 58.6 65.6 69.5 72.0 73.5 76.9 78.6 80.1 81.6 81.0 81.2 81.3 81.3 91.9

GE 10001 28.2 S4.4 59.0 66.1 70.1 72.7 79.3 77.9 79.6 R1.1 81.9 82.2 82.9 82.5 82.6 82.7GE 9GO 1 28.2 59.6 59.? 66.8 7).9 73. 7 75.3 79.1 80.9 82.5 83. 3 43.7 83.9 8.0 89.0 84.26E 8001 28.2 59.9 59.7 67.5 71.7 79.6 76.9 80.6 82.6 89.9 85.3 85.7 86.0 86.0 86.1 86.2fE 7001 28.2 55.1 63.1 68.0 72.7 75.7 77.6 82.1 89.1 86.2 87.1 87.6 87.9 88.0 88.0 88.2LE 6CO1 29. 2 55.2 63.2 68.3 73.0 76.2 78.2 83.1 85.3 87.5 89.7 89.3 89.8 89.9 89.9 9U.1

6E 5001 28.2 S5.3 63.4 68.5 73.3 76,6 78.8 83.8 86.2 88.7 90.2 91.1 91.7 91.9 92.0 92.2GE 9001 28.2 55.3 63.5 68.5 73.5 76.8 79.0 89.1 86.6 89.6 91.3 92.9 93.3 99.0 99.1 99.3GE so0 28.2 55.3 63.5 68.6 73. 76.8 79.0 84.3 86.9 90.1 93.0 C3.3 99.5 95.2 95.3 95.6GE 2UO 1 29.2 55.3 63.5 68.6 73.5 76.8 79.0 89.9 87.0 90.2 92.3 93.6 95.1 96.2 96.9 97.3GE IO 28.2 55.3 60.5 68.6 73.; 76.8 79.0 84.9 87.0 90.2 9?.3 93.7 95.9 96.7 97.1 99.5

GE 01 28.2 55.3 63.5 68.6 73.5 76.8 79.0 89.9 87.0 90.2 92.3 93.7 95.4 96.7 97.1 100.0

TOTAL NUMRER OF OBSERVAIOS: 3937

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATION NAME: ZIRIKZEE NL FEPIOD or RECORD: 80-87MONTH: FEF HOURS(LSTI: 0000-0200

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FELT I 10 6 5 4 1 2 1t2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 9/16 I/4 0

'40 CELIL I 5.0 24.3 21.3 34.4 36.R 18.7 40.5 42.0 43.1 44.3 44.6 44.8 45.0 45.0 45.0 4b.0

GF 200001 5.6 25.7 33.7 35.9 39.1 41.3 43.1 45.0 46.2 47.4 47.7 47.9 48.1 48.3 48.3 49.3bE 18CO0 I S.6 25.9 33.9 3b.1 39.? 41.5 43.2 45.1 46.4 47.6 47.9 4a.1 48.3 4S.4 4.4 49.5GE 1600b0 5.6 75.9 33.9 36.1 39.2 41.5 43.2 45. 1 46.4 476 47.9 481 48.3 48.4 48.4 49.5GE 140001 5.6 25.9 33.9 36 . 1 39.? 41.5 43.2 45.1 46.4 47.b 47.9 48.1 48.3 48.4 4P.4 49.5GE 12000 S.6 25.9 33.9 36.1 39.2 41.5 43.2 45.1 46.4 47.6 47.9 48.1 48.3 48.4 48.4 49.5

GE 100001 S.7 27.3 32.5 38.5 41.7 44.1 45.8 47.7 49.0 50.3 50.7 50.9 51.0 51.2 51.2 52.3oE 900GI S9 77.6 32.8 38.9 42.4 44.8 46.5 48.4 49.7 51.0 51.4 51.6 S.? 51.9 51.9 53.0GE 80001 5.9 28.5 33.9 43-1 43.6 46.2 479 50.0 51.2 52.6 53.0 53.1 53.3 53.5 53.5 S4.5GE 70oo 5.9 29.2 34.7 41.0 44.4 47.0 48.8 50.9 52.1 53.5 53.9 90.0 54.2 54.3 54.3 55.4GE 6001 9.9 29.3 34.9 41.1 44.6 47.2 49.0 51.0 52.3 53-6 54.0 54.2 54.3 54.5 59.5 56.6

GE SOUI 6.4 30.b 36.3 42.7 46.2 48.8 50.5 53.1 54.3 55.9 56. 3 56.4 56.6 56.8 56.8 S7.8GE 4'C00 6.6 31.4 77. 3 43.9 47.4 50.0 51.7 54.3 55.6 57.1 57.5 57.6 57.6 58.0 58.0 59.0GE 40031 8.9 35.4 47.7 50.2 54.0 56.6 58.5 61.3 62.5 64.2 64.6 64.9 65.1 65.3 65.3 66.3GC 35001 9.0 36.6 44.1 52.6 56.8 59.4 61.3 64.2 65.5 67.2 67.5 67.9 68.1 68.2 69.2 69.3GE 3001 9.' 38.0 96.0 54.7 59.4 62.3 64.6 67.9 u9.1 70.8 71.2 71.5 71.7 71.9 71.9 72.9

GE 25001 9.9 78.7 46.7 55.4 60.6 63.5 65.8 69.1 10.3 72.0 72.4 72.7 72.9 73.1 73.1 74.1GE 20T 10.2 39.6 47.6 57.3 63.4 66.7 68.9 72.2 73.4 75.2 75.5 75.9 76.0 76.2 76.2 77.3G E I00 10.2 40.1 44.3 58.3 64.4 67.7 70.0 73. 4 74.7 76.4 76.7 77.1 77.3 77.4 77.4 78.5uE 15001 10.2 40.6 49.0 59.7 66.3 70.1 72.4 76.4 77.S 79.5 79.9 80.2 80.4 80.6 83.6 81.6

E 12005 10.6 41.5 53.2 61.1 68.6 72.4 74.7 79.3 81.1 82.8 83.Z 83.5 83.7 83.9 87.9 84.9

GE 10010 10.6 41.5 53.9 61.8 69.5 73.4 75.7 81.1 83.0 R4.7 95.1 85.4 85.6 45.8 85.8 56.8E q3oI 10.6 41.7 51.0 62.3 70.1 74.0 76.2 82.1 84.0 85.8 86.1 96.5 86.6 86.8 86.8 87.8

bE 8001 10.6 41 . 7 51.0 62.5 70.8 74.8 77.3 83.7 85.6 87.3 87.7 88.0 88.2 88.4 88.4 89.4' 7001 10.6 41.4 51.4 63.5 72.4 76.6 79.2 86.1 84.2 90.5 90.8 91.1 91.3 91.5 91.5 92.5GE 6001 10.6 43,B 51.6 63.7 72.7 77.1 79.7 86.8 88.9 S3.8 97.2 92.5 92.7 92.9 92.9 93.9

GE SUO|I n1.6 41.8 55.6 63.9 72.9 77.4 80.0 87.3 89.4 92.5 9.31 93.4 93.6 93.8 93.8 94.8GE 4005 10.6 41.8 51.6 64.1 73.1 77.6 80.2 87.5 89.6 93.1 97.6 94.3 94.3 94.4 94.4 95.SGE TOO 10.6 41.8 51.6 64.3 73.1 77.6 80.2 87.5 90.1 93.6 94.1 94.6 95.0 95.1 95.1 96.4

cU OO1 10.6 43.8 51.6 64.1 73.1 77.6 80.2 87.7 90.3 03.8 94.3 94.8 95.3 96.2 96.2 97.4

bE 1001 Ifl6 41.8 51.6 64.1 73.1 77.6 80.2 87.7 90.3 93.8 94.3 94.8 9S.3 96.2 96.2 99.0

GE 01 10.6 41.8 !3.6 64.1 73.1 77.6 80.2 87.7 90.3 93.8 94.3 94.8 95.3 96.2 96.2 30OO


GLOBAL CLIMATOLOGY BRANCH PERCENTASE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USAFET AC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZILRIKZET NL PEPIOD OF RECORD: 78-BTMONTH: FEB HOURS(LSTI: 0300-0500

• o , .. . ... . ...... ......... ..... ..... ..... ,.............. ............. ,..,..,.

CE ILING ISIBILITY IN STATUTE MILESIN I GE G GE GE GE GT GE GE GE GE SE GE GE GE GE GE

FEET I 10 6 5 4 7 2 112 2 1 112 1 1/ 1 3/4 5/8 112 5/16 1/4 0.. . . . . . . . . . . . . . .................. ...... ... . . . . . . . . . .. . . . . . . . .....- .* .o. .... ... ....

NO CELIL 4 .5 20.5 25.3 31.9 34.2 36.5 38.7 42.0 43.4 43.9 44.1 44.3 44.4 45.0 45.0 46.0

GE 2COO0 4.9 21.0 25.9 32.6 35.4 37. 8 40.8 44.3 45.7 46.2 46.4 46.5 46.7 41.4 47.4 48.4GE 18000 1 4.9 21.0 25.9 32.6 35.4 37.8 40.8 44.3 45.7 46.2 46.4 46.5 46.7 47.4 47.4 48.4

GE 16000I 4.9 21.0 25.9 32.6 35.4 37.B 40.8 44.3 45.7 46.2 46.4 46.5 46.7 47.4 47.4 4B.4GE 14C00 4.9 21.0 25.9 32.6 35.4 37.8 40.8 44.3 45.7 46.2 46.4 46.5 46.7 47.4 47.4 48.4GE 120001 4.9 21.2 26.0 32.8 35.6 38.0 41.0 44.4 45.8 46.4 46.5 46.7 46.9 47.6 41.6 48.6

GE 10C001 5.6 24.1 29.3 36.3 39.1 41.5 44.4 48.1 49.5 50.0 50.2 50.3 50.5 51.2 51.Z 52.3GE 90001 5.7 24.5 29.7 36.6 39.5 42.0 45.0 48.6 50.0 50.5 50.7 50.9 51.0 51.7 51.7 52.8GE 81Oi 5.9 25.0 33.2 37.2 40.1 42.5 45.5 49.1 50.5 51.0 51.2 51.4 51.6 52.3 52.3 53.3

GE 70001 5.9 25.0 33.2 37.2 40.1 42.5 45.5 49.1 50.5 91.0 51.2 51.4 51.6 52.3 52.3 53.3GE 60001 5.9 25.0 33.2 37.2 40.1 42.5 45.5 49.1 50.5 51.0 51.2 51.4 51.6 52.3 52.3 53.3

GE 50001 6.3 25.7 31.1 39.4 42.4 45.0 47.9 51.6 53.0 53.6 53.8 54.0 54.2 54.9 54.9 %5.9GE 4,001 7.1 27.1 32.6 41.5 44.6 47.4 50.3 54.0 55.4 56.1 56.3 56.4 56.6 57.3 57.3 58.3GE 4o001 8.7 30.7 36.6 46.2 49.3 52.1 55.2 S8.9 60.2 60.9 61.1 61.3 61.5 62.2 62.2 63.2GE 35001 9.n 31.4 37.5 47.2 so.7 53.5 56.8 60.6 62.0 62.7 67.8 63.0 61.2 63.9 63.9 64.9fE 30001 9.2 33.7 39.8 51.2 55.0 58.0 61.3 65.3 66.7 67.4 67.5 67.7 67.9 68.6 6P.6 69.6

GE 26001 9.4 16.3 42.9 54.5 58.0 62.0 65.6 70.1 71.5 72.2 72.4 72.6 72.7 73.4 73.4 74.5GE 20001 9.5 31.0 43.8 55.7 60.2 63.5 67.4 71.9 73.3 74.0 74.1 74.3 74.5 75.2 75.2 76.2UE 18001 9.5 37.3 44.3 56.4 61.1 64.9 68.8 73.6 75.0 75.7 79.9 76.0 76.2 76.9 76.9 78.0GE 19001 9.5 37.7 45.0 57.8 62.7 67.4 71.2 76.0 77.4 78.1 78.3 74.5 78.6 79.3 79.3 80.4GE 12001 9.5 38.0 45.5 59.0 64.6 69.8 73.8 79.2 80.6 81.3 81.4 81.6 81.8 82.5 82.5 83.5

6E 10001 9.5 38.0 45.7 59.5 65.5 71.0 75.3 81.1 82.5 83.2 83.3 83.5 83.7 84.5 84.5 85.66E 90t1 9.5 38.2 45.8 59.9 66.3 71.9 76.2 82.1 83.5 44.2 84.4 84.5 84.7 85.6 85.6 86.6

GE AUDI 9.5 38.2 45.8 60.2 66.7 72.2 77.1 83.7 85.4 86.1 86.3 86.5 86.6 87.5 87.5 88.5GE 7001 9.5 38.5 46.2 61.1 67.9 73.3 78.3 85.b 87.3 88.2 88.4 88.5 88.7 89.6 89.6 90.6GE 6001 9.5 38.5 46.2 61.1 67.5 73.6 78.8 86.5 88.4 49.6 89.9 90.1 90.3 91.1 91.1 92.2

GE 9001 9.5 38.5 45.2 61.1 67.r 73.6 79.7 87.8 90.1 91.3 91.7 91.8 92.0 92.9 92.9 93.9GE 4001 9.5 38.5 46.2 61.1 67.5 73.6 79.7 87.8 90.1 91.5 97.4 92.5 92.7 93.6 93.6 94.6GE 3001 9.5 38.5 46.2 61.1 67.7 74.0 80.0 88.4 90.6 72.2 93.1 93.2 94.1 95.1 95.1 96.4GE 2001 9.5 38.5 46.2 61.1 67.7 74.0 80.0 88.4 90.6 92.4 93.2 93.4 94.3 95.7 96.0 97.2Gr 1001 9.5 38.S 46.2 61.1 67.7 74.0 80.0 88.4 90.6 92.4 9!.2 93.4 94.3 96.0 96.4 99.5

GE aI 9.5 38.5 45.2 61.1 67.7 74.0 80.0 88.4 90.6 42.4 93.2 93.4 94.3 96.0 96.4 100.0

TOAL NUMBER OF OBSERVATIONS 576

J

1*

2 GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

uSAFETAC FROM HOUqLY OBSERVATIONSAIR WEATHER SERvICE/MAC

STATION NUMBER: 063250 SIAIION NAME: ZIERIKzE: NI PEPIOD OF RECORD: 78-87MONTH: FEB HOURSILSTI: 0600-0800

C . . . . . ..ILI. . . . . . . . . . . . . . . . . . . . . . . . . . .CEILING VISIBILITY IN SIATUIE "ILES

IN GE GE GE GE GE GE GE GE GE GE GE GE GE GE Gf GEFEET 1C 6 5 4 5 2 iV2 2 1 IV?2 1 1/N 1 3/N /8 1/2 5/16 1/ 0

NO CEIL 1 4.4 18.2 21.9 28.9 31.1 33.1 3N.7 37.3 39.0 N0.5 N0.8 41.1 41.1 41.5 41.5 N2.1

GE 200001 S.2 20.2 24.0 31.5 3N.4 36.3 37.9 N0.8 27 44.5 44.8 45.2 N5.2 4S.S NS.5 4b.1GE 180001 5.2 20.3 21.2 31.6 34.5 36.5 38.1 N1.0 82.9 4N.7 45.0 45.3 NS.3 45.6 5.6 Nb.3GE 160001 5.2 20.3 24.2 31.6 3N.5 36.5 38.1 1.0 82.9 4N.7 N4.0 N5.3 85.3 85.6 85.b N6.3GE 14COBI 5.2 20.S 281.4 31.8 34.7 36.6 38.2 41.1 43.1 44.8 45.2 4S.5 5.5 85.8 S.8 46.5GE 12C0DI 5.2 21.1 25.0 32.4 35.5 37.4 39.0 41.9 43.9 45.6 46.0 N6.3 46.3 86.6 86.6 47.3

GE 100001 5.5 22.7 26.8 38.8 37.6 39.7 41.3 44.5 46.6 N8.5 4R.9 49.2 N9.2 N9.5 49.5 50.2bE 90001 5.5 22.7 26.8 38.5 37.7 39.8 N1.5 NN.7 46.8 88.7 N9.0 49.4 N

9.4 N9.7 49.7 50.3

GE 800O1 4.6 23.2 27.4 35.2 38.4 40.5 42.1 4S.3 87.4 49.4 49.7 50.0 SO.0 50.3 50.3 51.0GE 70001 5.6 23.2 27.N 35.2 38.N NO.5 82.1 45.3 N7.N N9.4 49.7 50.0 50.0 50.3 50.3 51.0GE 6r00I S.6 23.2 27.4 3.2 38.4 40.5 42.1 45. 3 N7.N 89.8 89.7 SO.0 50.0 50.3 50.3 51.0

.E 50o00 5.8 24.0 28.9 36.8 80.3 1 2.N 84.0 N7.N N9.7 51.8 52.2 52.8 52.N 52.9 52.9 53.5Lt N5001 5.8 24.2 29.2 37.4 41.3 43.5 85.2 48.5 60.8 52.9 5.? 53.5 53.7

5N.2 5.2 S4.8

GE 40001 6.6 27.1 32.3 40.6 Ns.0 47.6 N9.N 53.1 55.5 57.6 58.1 S8.N 58.S 59.0 59.2 59.8GE 35001 7.6 29.0 38.8 82.9 87.3 N9.8 51.8 5S.6 58.1 60.2 60.8 61.1 61.3 61. bi .9 62.6GE 30001 8.5 31.0 36.9 NS.8 50.f 53. 8 55.5 59.8 61.8 63.9 68.5 68.8 65.0 65.5 65.6 66.3

b E 25001 8.7 '2.3 38.5 88.4 53.2 56.1 58.5 62.7 65.2 67.6 68.8 68.7 68.9 69.8 69.5 70.2G E 20001 8.9 33.5 83.2 S.5 56.- 59.7 62.6 67.1 69.5 71.9 72.7 73.1 73.2 73.7 73.9 78.5GE 1802 9.0 38.2 81.1 52.6 58.5 61.5 64.8 68.9 71.3 73.7 78.5 7N.8 75.0 75.5 75.6 76.3GE 15002 9.0 34.8 82.1 53.9 60.5 63.6 66.5 71.3 73.7 76.1 77.1 77.8 77.6 78.1 78.2 78.9GE 12001 9.2 35.5 42.7 55.0 62.1 65.8 68.7 73.7 76.3 78.7 79.8 80.2 80.3 80.8 61.0 81.6

GE 10001 9,2 35.5 8 .9 55.3 62.7 66.9 70.3 75.6 78.2 80.6 82.8 82.1 82.3 82.7 87.9 S3.5GE 9001 9.2 35.5 43.1 55.5 63.8 67.7 71.5 77.3 80.0 82.4 83.5 83.9 88.0 84.5 88.7 85.3GE 8002 9.2 35.5 43.1 55.6 63.7 ba.2 71.9 78.7 81.8 88.8 85.8 86.1 86.3 86.8 86.9 87.6GE 7002 9.2 35.6 43.5 56.1 64.4 68.9 72.6 80.0 83.N 86.0 87.8 By.? 87.9 88.8 88.5 89.2G f 001 9.2 35.6 83.5 56.1 64.4 68.9 72.6 80.2 83.5 86.3 87.9 88.2 88.8 88.9 89.2 89.8

6E s0u 9.2 35.6 43.5 56.1 6q.4 69.0 72.9 81.0 AN.4 87.8 89.2 89.5 89.T 90.2 90.5 q1.3GE 8002 9.2 35.6 83.6 56.1 68.5 69.8 73.2 81.5 88.8 86.5 91.0 91.6 91.9 92.8 92.7 93.5GE 3001 9.2 35.6 83.5 56.3 68.7 69.5 73.4 81.6 85.2 89.7 92.3 92.9 93.8 98.0 98.8 95.2GE 2001 9.2 35.6 83.5 56.3 68.7 69.5 73.8 81.6 85.2 89.7 92.3 9209 93-5 98.8 95.2 96.6GE 1002 9.2 35.6 83.5 56.3 68.7 69.5 73.8 81.6 85.2 89.7 92.3 92.9 93.5 95.Z 95.6 99.5

GE 01 9.2 35.6 83.S 56.3 68.7 69.5 73.4 81.6 85.2 89.7 92.3 92.9 93.5 95.2 95.6 100.0

TOTAL NUMBER OF OSERVATIONS: 620

ldo-

6LO1AL CLIMATOLOGY BRANCH PERCENTAGE rRQUENCY OF OCCURPENCE OF CEILING VERSUS VISIBILITYUSAFET AC FROM HOURLY O8SERVATIONSTAIq EATHER SERVICE/MAC

STATION NUMBLR: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORO: 78-87MONTH: FEP HOURSILSTI: 0900-1103

CE LlT 0 VISIBILITY IN STATUTE MILES

IN I GL GE SE GE GE Gr GE GE GE GE GE GE GE GE GE GEFEET | 10 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/8 112 5/16 1/4 0

NO CElL 5.1 14.1 18.8 23.2 26.q 29.1 29.9 33.2 33.7 34.5 35.2 35.2 35.2 35.2 3S.2 35.5

GE 20001:.:b.7 17.4 22.7 27.6 31.7 34.2 35.4 40.0 40.8 41.9 42.6 42.6 42.6 42.6 42.6 42.9GE 180001 6.7 17.4 22.1 27.6 31.7 34.2 35.4 40.0 40.8 41..9 42.6 42.6 42.6 42.6 42.6 42.9GE 16OU0I 6.7 17.4 22.7 27.6 31.7 34.2 35.4 40.0 40.8 41.9 42.6 42.6 42.6 42.b 42.6 42.9

GE 14000 6.7 17.4 22.7 27.6 31. 7 34.2 35.4 40.0 40.8 41.9 47.6 42.6 42.6 42.6 42.6 42.96E I00$ 6.9 17.8 23.J 28.0 32.1 34.5 35.7 40.5 41.3 42.6 43.3 43.3 43.3 43.3 43.3 43"6

GE ICOUO1 6.9 20.4 25.4 31.b 36., 38.7 39.8 44.6 45.6 47.2 4P.0 48.0 48.0 48.0 48.0 48.4GE 90001 6.9 20.7 26.2 31.9 36.5 39.3 40.6 45.6 46.5 48.2 40.0 49.0 49.0 49.0 49.0 49.3GE 80001 6.9 21.9 27.3 33.1 38.? 41.0 42.3 17.4 48.4 50.0 50.4 5. P 0.8 50.8 50.8 S0.8 51.2GE 700 6.9 22.0 21.5 33.6 38.5 41.4 42.8 47.9 48.8 50.7 51.5 51.5 51.5 51.5 51.5 51.8GE 6 00 6.9 22.0 27.5 33.6 38. 41.4 43.1 48.2 49.2 1i1.0 51.8 51.8 51.8 91.8 51.8 52.1

GE 5oo 6.9 22.4 25.0 34.5 39.6 42.8 44.4 49.8 50.8 52.6 S3.5 53.S 53.5 53.5 53.5 -3.8GE 45001 7.6 23.8 29.6 36.5 42. 45.4 47.0 52.5 53.5 55.6 56.7 56.7 56.9 56.9 56.9 57.2GE 40001 8.4 26.3 32.6 39.8 45.9 49.2 50.8 56.7 57.7 59.9 61.0 61.0 61.2 61.2 61.2 61.5GE 35001 9.2 28.3 34.7 41.9 48.2 51.5 53.1 59.4 60.4 62.5 63.7 63.7 63.8 63.8 63.8 64.1

GE 30001 10.0 29.9 36.5 43.9 51.2 54.6 56.7 63.5 64.5 66.6 67.8 67.8 67.9 67.9 67.9 68.3

GE 25001 10.5 30.9 37.7 45.6 53.1 56.6 58.7 65.6 66.6 68.8 69.9 70.1 70.2 70.2 70.2 70.6GE 20001 10.7 31.9 38.8 47.j 54.9 58.2 60.4 67.3 68.4 70.7 71.9 72.0 72.2 72.2 72.2 72.5GE 19001 11.3 32.6 39.6 48.2 55.9 59.4 61.5 68.8 70.2 72.9 76.2 74.3 74.5 74.5 74.5 74.8GE 15001 11.5 33.6 43.8 49.3 57.2 60.9 63.5 70.9 72.5 75.3 76.6 76.8 77.1 77.1 77.1 77.5GE 1200$ 11.7 34.0 41.4 SO.2 5.7 62.5 65.5 73.4 75.2 78.0 79.6 79.9 80.3 80.3 80.3 80.6

GE 100 11.7 34.0 41.4 50.2 58.4 62.7 65.8 73.8 75.7 78.5 80.4 80.8 81.1 81.1 61.1 81.4GE 9001 11.7 34.0 41.4 50.2 58.4 62.7 65.8 74.3 76.6 79.8 81.9 82.2 82.6 82.6 82.6 82.9GE 800$ 11.7 34.2 41.6 50.5 59.2 63.5 66.6 76.0 78.9 42.4 85.f 86.0 86.3 46.3 86.3 86.7GE 700$ 11.7 34.4 41.9 51.2 59.9 64.3 61.8 77.3 80.6 84.4 8'.5 88.S 88.8 88.8 84.8 89.1GE 600$ 11.7 34.5 42.1 51.3 60.0 64.5 67.9 77.6 80.9 84.7 84.0 89.0 89.3 89.3 89.3 89.6

(E SOOI 11.7 34.7 42.4 52.0 60.7 65.1 68.6 78.5 81.7 85.5 89.0 90.3 90.8 90.8 90.8 91.1GE 400$ 11.7 34.7 42.4 52.0 60.7 65.1 68.6 78.5 81.7 46.0 90.0 91.3 91.8 91.8 91.8 92.1GE 3 U0 11.7 34.7 42.4 52.0 60.7 65.1 68.6 78.5 81.7 86.8 91.0 92.6 93.3 93.4 93.4 93.8GE 2001 11.7 34.7 42.4 S2.0 60.7 65.1 68.6 78.5 81.7 46.8 91.0 92.6 93.4 94.6 94.7 96.9bE 100$ 11.7 34.7 42.4 52.0 60.7 65.1 68.6 78.6 81.9 47.0 91.1 92.8 93.6 94.7 9S.. 99.8

GE 0$ 11.7 34.1 42.4 52.0 60.7 65.1 68.6 78.6 81.9 87.0 91.1 92.8 93.6 94.7 95.2 100.0

IOTAL NUMBER OF OBSERVATIONS: 608

GLOBAL CLI14AOLOGY BRANCH PEkCENTAGE FREQUE4CY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOUQLY OBSERVATIONS


STATION NUMBER: 063253 StATI100 NAME: ZlIERIKZE- ML PEOIOD OF RECORD: 78-87MONTH: FEB HOURSfLST): 1200-1400

IN GE GE GE GE GE GE GE GE GE GE GE GE GE I.E GE GEFEET | 10 b 5 8 3 2 112 2 1 112 1 1/0 1 1/4 5/8 112 5/16 1/4 0

NO CEIL 1 7.9 17.b .2 26.6 30.3 31.2 32.1 3M.8 36.3 37.6 38.3 38.3 38.5 38.6 38.6 38.6

I.E 200U01 9.3 19.8 Z3.5 31.2 35.1 36.8 38.6 43.3 .1 . b.4M 47.1 47.1 47.4 47.6 47.6 41.66E IACOaI 9.3 19.8 23.5 31.4 35.4 37.1 38.9 43.6 45.4 46.7 47.4 47.4 47.8 47.9 47.9 47.9

GE 16!00 1 9.3 19.8 23.5 31.4 35.4 37.1 38.9 83.6 4S.8 46.7 47.4 47.4 87.8 47.9 47.9 M7.9

I.E ITMu0 9.3 19.8 23.5 31.4 35.8 37.1 38.9 43.6 45.4 M6.7 47.4 47.4 87.8 87.9 47.9 47.9

A..E 120 CCI 9.4 20.1 23.8 32.3 36.J 37.7 39.6 M.2 86.1 47.3 48.I 48.I N8.N 48.5 49.5 46.5

IbE 10000| I0.( 22.4 27.0 35.4 39.6 41.4 3.7 88.5 50.7 51.9 5Z.7 52.7 53.3 53.2 S3.2 53.2.iE 90001 10.2 22.7 27.4 35.7 39.9 o1.7 84.2 89.0 S|.2 5Z.4 53.2 53.2 55.5 53.6 53.6 53.6I.E BtU() 10.4 23.5 28.3 36.8 81.1 83.1 45.6 50.4 52.7 S3.9 S4.9 S4.9 55.2 55.3 55.3 55.3GE 7C001 10.' 23.6 29.6 37.2 41.6 83.6 86.1 50.9 53z S4.4 SS.3 55.3 55.6 55.8 55.8 55.8UE 6C00 10.7 28.1 28.9 37.6 42.0 44.0 86.5 S1.b 53.9 SS.3 56.3 56.3 Sb.6 %6.7 56.7 56.7

IE 5Po0 10.7 24.8 29.7 38.6 43.6 45.9 48.8 53.9 56.3 57.7 59.6 %9.6 58.9 59.0 59.0 59.0I.E 4S00I 11.3 26.3 31.7 41.3 46.4 48.7 51.6 56.9 59.4 60.9 61.8 62.1 62.8 62.6 62.6 6Z.6bE OU01 12.1 28.1 34.0 88.2 49.8 52.1 55.3 60.6 63.1 64.9 66.0 66.3 66.6 66.8 66.8 66.8I.E 3S0on 12.7 29.7 35.9 86.2 51.8 58.1 57.3 62.8 bS.2 67.1 68.2 8.5 68.8 68.9 68.9 60.9

IE 3OO1 13.4 31.8 38.3 48.7 54.6 57.2 60.8 65.8 68.5 73.3 71.4 71.7 72.2 72.3 72.3 72.3

I.E 25001 13.6 32.5 39.7 SO.4 56.4 59.2 62.8 68.3 70.9 73.1 74.3 it.7 75.1 75.3 75.3 75.3I.E 2C00 13.9 33.5 41.1 52.1 58.1 61.2 64.6 71.1 73.9 76.2 77.6 71.9 78.4 78.5 78.S 78.5

I.E 1P0O1 14.1 34.0 41.7 52.9 59.4 62.4 65.8 72.5 15.4 77.7 79.q 79.8 63.2 80.8 80.8 80.86E 1-001 14.2 34.2 4?.3 53.5 60.3 68.5 68.8 7S.8 78.7 81.0 82.7 83.0 83.5 83.6 63.6 83.b

IE 12(101 14.8 34.5 82.7 S3.9 60.7 65.5 70.0 76.6 80.2 82.S 84.4 84.7 85.2 85.3 85.3 85.3

I.E IC0O1 14.4 34.5 42.6 54.1 61.2 65.8 70.5 77.4 81.0 83.3 85.3 85.8 86.2 R6.4 86.4 86.4

.E 9001 1Q.4 34.8 43.3 58.b 61.8 66.5 71.1 78.7 82.2 880.7 86.9 87.3 87.8 87.9 87.9 87.9IE POOl1 1.4 34.9 43.6 54.9 62.6 67.2 71.9 79.6 83.6 86.8 88.7 89.5 90.1 90.3 90.3 90.3I. 7oI1 l. 4 35.1 43.7 55.0 62.9 67.5 72.2 80.2 84.4 87.3 9j.0 90.7 91.5 91.7 91.7 91.7GE 601 18.4 35.1 43.7 55.2 63.1 67.7 72.3 80.5 84.9 R.! 90.7 91.5 92.3 92.8 92.4 92.8

GE 001 14.8 35.1 83.7 55.z 63.3 67.7 72.3 80.5 84.9 08.M 92.0 92.9 93.8 94.3 94.3 94.3bE 401 18.8 35.1 43.7 SS.2 63.1 67.7 72.3 80.5 84.9 88.9 92.9 93.8 95.1 95.7 95.8 95.8IE '001 14.4 35.1 43.7 55.Z 63.1 67.7 72.3 80.5 84.9 89.0 93.2 98.4 95.8 96.8 96.9 96.9GE 2001 18.4 35.1 43.7 55.2 63.1 67. 7 72.3 80.5 84.9 89.0 91.8 98.6 96.0 97.7 98.3 98.3

GE 100 14.8 35.1 43.7 55.2 63.1 67.7 72.3 80.5 85.0 89.3 93.7 98.9 96.3 98.0 98.6 100.0

IE 0 14.8 35.1 43.7 55.2 63.1 67.7 72.3 80.5 8S.0 .89.3 93.7 98.9 96.3 98.0 98.6 100.0


GLOBAL CLIMATOLOGY BRANCH PEfCENTAGE FREQUENCY Of OCCURRENCE OF CEILING VERSUS VISIBILITY

USAF E7 AC FROM HOUL ObSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIIRIXZEE NL PERIOD OF RECORD: 78,8r-87MONTH: FEB HOURS(LSTI: 1500-1703;c l l ...................................................................... E. ....... . .... .. .. ..... .....

CEILING VISIBILITY IN STATUTE MILESIN GE GE GE GE GE G- GE GE GE GE GE GE GE GE GE GE

FEETCC 10 6 5 4 2 112 2 1 112 1 1/4 1 3/4 5/8 112 5/16 1/4 0•,... . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . ............................' o .o .. ~ o . ~ t... . . e ~. ...o .. .. .. ..

NO CEIL 1 6.9 IS.R 17.8 23.2 26.7 28.6 29.3 32.7 33.7 35.5 36.0 36.2 36.2 36.2 36.2 36.2

GE 20000 8.6 20.6 22.9 30.4 34.5 38. 2 38.8 443.3 444 46.5 47.0 47.2 47.2 47.2 47.2 47.4GE 180001 8.6 20.6 22.9 30.4 34.5 38. 2 38.8 43.4 44.6 6.7 47.2 47.4 47.4 47.4 44 47.5GE 161001 8.6 20.6 22.9 30.4 34.5 38.2 38.8 43. N 44.6 46.7 47.2 47.4 47.4 47.4 47.4 4 75GE 14000 V.6 20.6 22.9 30.4 3.5 36.2 38.V 43.44 :4 .6 6.7 47 : 2 7 .:47.4 7.4 47.4 47.5GE 12000 V.6 20.7 23.0 30.6 3N7 38.3 39.0 43.6 4.7 46.9 47.4 75 47.5 47.5 47. 47.7

GE 100001 9.4 23.0 25.5 33.4 37.7 413 N2.3 4472 NB.A 51.2 51.6 51.8 51.8 51.8 51.8 52.0,E 9coO 9.4 23.0 25.7 33.7 38.3 41.8 42.8 .7.9 49.5 51.b 52.5 52.6 52 6 52.6 52.6 52.8

GE 8000 9.5 23.2 26.0 34.2 3C.8 42.6 43.6 48.8 51.0 S3.3 53.9 54.1 54.1 54.1 54.1 544.3GE 7000: 9.5 23.2 26.2 344.5 39.1 43.1 444. 993 51.5 53.8 5444 544.6 54.6 54.6 54.6 5 4.GE 6000 9.5 23.2 26.3 34.9 39.5 434 4 .4 49.7 52.0 54.4 5.1 55.3 55.3 r5.3 55. 3 554

GE 50001 10.2 24.2 27.6 37.0 41.6 45.6 46.5 51.8 54.1 56.6 57.2 57.6 57.6 S7.6 57.6 57.7GE 450o 10.4 26.0 29.8 39.1 43.9 48.0 49.2 54.6 56.9 59.4 60.2 60.5 60.5 60.5 b0.5 60.7GE 40001 10.5 28.0 32.2 41.9 46.7 50.8 52.0 57.6 59.9 62.3 63.2 63.5 63.7 63.7 63.7 63.8GE 35001 11.2 29.6 34.0 44.4 49.2 53.3 54.4 60.0 62.5 65.0 65.8 66.1 66.3 66.3 66.3 66.4GE 30001 12.5 31.7 37.0 41.7 53.1 57.6 58.7 644.3 66.9 69.6 70.4 70.7 71.1 71.1 71.1 71.2

GE 25001 17.0 32.9 38.8 49.7 55.3 59.7 60.9 66.8 69.4 72.0 72.9 73.2 73.5 73.5 73.5 73.7GE 20001 13.7 34.4 4.6 52.0 57.6 62.3 63.5 69.9 72.7 75.7 76.5 76.8 77.1 77.5 77.5 77.6GE 18001 13.8 344.7 41. 52.6 58.94 63.2 64.5 71.4 144.2 77.1 7R. 0 78.5 78.8 79.1 79.1 79.3bF 15001 14.1 36.2 42.9 55.1 60.9 66.3 67.8 74.8 77.6 80.6 81.6 82.2 82.6 82.9 82.9 63.1GE 12001 144.3 36.5 444.1 56.7 63.0 68.4 70.1 77.6 80.4 3.4 89.4 85.0 85.4 5.7 85.7 85.9

G.E IC001 14.3 36.7 44.2 57.1 63.5 68.9 70.7 78.5 81.3 R4.5 86.0 86.7 87.0 87.3 87.3 87.5GE 9001 14.3 36.7 444.2 57.1 63.5 68.9 71.1 78.9 81.9 85.4 86. 87.5 87.8 88.2 88.2 88.3GE A001 144.3 36.7 44.4 57.6 64.5 70.1 72.2 81.1 84.2 A7.8 89.5 90.5 90.8 91.1 91.1 91.3GE 7001 144.3 36.8 44.9 58.2 65.1 70.7 72.9 82.2 85.5 19.5 91.3 92.3 92.6 92.9 92.9 93.1GE 6001 14.3 36.8 45.1 58.4 65.5 71.1 73.2 82.9 86.3 90.6 92.9 93.9 94.4 95.1 95.1 95.2

IE 5009 14.3 36.8 45.2 58.b 65.6 71.2 73.5 83.6 87. 0 91.4 93.9 94.9 95.4 96.1 96.1 96.2GE 4400 14.3 36.8 45.2 58.6 65.6 71.2 73.5 83.6 87.0 91.4 94.2 95.2 95.9 96.9 96.9 97.0GE 3001 14.3 36.8 45.2 58.6 65.6 71.2 73.5 83.6 87.0 91.8 94.9 96.5 97.4 98.4 9.4 98.5GE 2001 14.3 36.8 45.2 58.6 65.f 71.2 73.5 83.6 87.0 91.8 95.2 96.9 97.7 99.0 99.0 99.2GE 100 14.3 36.8 45.2 58.6 65.6 71.2 13.5 83.6 87.2 91.9 95.4 97.0 97.9 99.2 99.2 99.7

GE 01 14.3 36.8 45.2 58.b 65.6 71.2 73.5 83.6 87.2 91.9 95.4 97.0 97.9 99.2 99.2 100.0TOTA.NUBE..O.FTSERVAYIONS: 6UV...°...o.... ....... ...

TOTAL NUMBER OF OB5ERVAIIo 5: hUS

GLOBAL CLIMATOLOGY BRANCH PE9CENIAGE FR UUENCY OF OCCURRENCE OF CEILINb VFRSUS VISIBILITY


STATICN NUMBER: 063253 STAT ION NAME: ZIERIKZEU NL PEDIOD OF RECORD: 78-87

MONT1: FEE HOURSILSTI: 1800-2300

CEILING VISIBILItY IN STATUTE MILESIN I GE GE GE GE GE Gi GE GE GE GE GE GE GE GE GE GE

FEET I 10 6 5 9 2 1,2 2 1 112 1 1,4 1 3/4 5/8 112 5/16 1/4 0

NO CEIL I 6.7 18.0 21.2 26.0 28. 29.6 30.7 39.1 35.8 36.5 37.3 37.7 37.7 37.7 37.7 38.1

GE 2UCOO1 9.0 22.1 25.7 32.1 35.b 37.1 38.1 42.0 43.7 44.4 45.5 46.0 46.0 96.0 46.0 4b.3GE 180001 9.0 22.1 25.7 32.1 33.q 37.1 38.1 92.0 43.7 44.9 93.5 9b.0 96.0 96.0 96.0 96.3GE 16000 9.0 22.1 25.7 32.1 35.- 37.1 38.1 42.0 93.7 99.4 45.5 96.0 96.0 96.0 96.0 96.3

GE 140001 9.0 22.1 25.7 32.1 35.P 37.1 38.1 42.0 43.7 49. 45 .5 46.0 96.0 46.0 96.0 96.3

bE 120001 9.1 22.2 26.0 32.9 36.1 37. 9 38.9 42.3 4.0 99.7 4 .8 46.3 96.3 96.3 96.3 46.6

UE 100001 10.0 25.9 30.3 36.7 90.8 92.2 93.1 97.3 49.3 50.1 51.1 51.6 51.6 51.6 51.6 51.9

GE 90001 10.7 26.5 31.1 38.1 42.3 93.7 94.6 48.9 50.8 S1.6 52.8 53.3 53.3 53.3 53.3 53.6GE 8E001 10.7 27.1 32.4 39.7 44.0 95.7 96.6 51.0 53.0 53.7 5.3 55.7 55.7 55.7 55.7 56.0GE 70001 10.8 27.2 3?.7 90.3 49.6 46.3 97.2 51.6 53.7 59.5 56.0 56.5 56.5 S6.5 56.5 56.8GE bO01 10.4 27.2 32.9 40.5 44.7 96.6 97.5 51.9 54.2 54.9 56.5 56.9 56.9 56.9 56.9 57.2

GE 50001 11.4 28.5 34.1 91.7 96.' 47.8 48.7 53.6 55.9 56.6 59.1 58.8 58.8 58.8 58.8 59.1

GE 95001 12.0 29.5 35.2 42.9 47.2 99.0 50.1 55.1 57.9 S8.1 SQ.7 60.3 60.3 60.3 60.3 60.6GE 4001 12. 31.1 37.0 45.2 49.b 31.6 52.7 57.8 60.1 61.0 67.6 63.2 63.2 63.2 63.2 63.5|E 35001 12.5 31.7 37.7 46.7 51.1 33.1 54.3 59.7 61.9 62.9 64.9 65.0 65.0 65.0 6!.0 65.3GE 3001 13.5 33.8 93.2 S0.1 55.9 57.9 58.6 63.9 b6.9 67.6 69.1 69.7 69.7 69.7 69.7 70.0

GE 25001 13.5 33.0 91.9 52.1 58.9 60.7 61.9 67.9 70.0 71.9 73.1 73.7 73.7 73.7 73.7 7.0GE 20001 13.9 35.8 93.1 59.3 61.2 63.6 69.8 70.6 13.2 79.7 76.6 77.2 77.2 77.3 77.3 77.6GE 18001 11.0 36.2 93.7 55.1 62.3 65.0 66.2 12.3 75.0 76.6 7q.9 79.0 79.0 79.1 79.1 79.5,E 15001 19.5 37.3 49.9 57.9 65.4 68.8 70.2 76.9 79.6 81.1 83.7 84.0 89.0 89.3 84.3 84.6

bE 1260 1 14.5 37.9 95.5 38.1 66.7 70.5 71.8 78.8 81.9 R3.7 85.P 86.6 86.6 86.9 86.9 87.2

UE 10001 14.5 38.1 95.8 58.8 67. 71.9 72.8 79.9 83.1 89.9 87.2 88.0 88.0 89.3 88.3 88.6GE 9001 14.5 38.1 95.8 58.9 67.7 71.6 73.4 80.8 89.3 A86.8 89.7P 89.8 89.8 90.1 90.1 90.9GE R001 14.5 38.2 96.1 59.5 68.5 72.6 79.1 81.7 85.5 P8.4 97.7 91.5 91.5 91.8 91.8 92.1GE 7001 19.3 38.9 96.3 S9.7 68.6 72.8 74.3 82.0 86.0 88.9 91.1 92.1 92.9 92.7 92.7 93.0GE 6001 14.5 38.4 96.! 39.7 68.6 72.8 79.3 82.2 86.8 99.8 97.5 93.6 93.9 94.2 94.2 94.5

GE 00 39.3 38.9 45.3 59.7 68.6 72.8 79.3 82.2 87.2 90.6 93.6 95.0 95.9 95.9 9s.9 96.2GE 4001 14.5 38.4 46.3 S9.7 68.6 72.8 79.3 82.2 87.2 90.7 93.8 95.1 95.6 96.0 96.0 96.3GE 3001 19.5 38.9 46.3 59.7 68.3 72.8 74.3 82.2 87.4 91.2 99.4 96.2 96.8 97.9 97.9 97.7GE ?JOI 19.5 38.9 Qb.3 39.7 68.6 72.6 79.3 82.2 87.4 91.3 94.7 96.7 97.3 98.5 98.5 98.9GE 1OOl 14.5 38.9 96 .3 59.7 68.6 1 . 8 79.3 82.3 87.7 91.6 95.0 97.0 97.6 98.8 98.8 99.5

GE 01 in.5 38.4 96.3 59.7 68.6 72.8 74.3 42.3 87.7 91.6 b 5.0 97.0 97.6 98.8 98.8 100.0


GLOBAL CLIMATOLOGY BRANCH PENCENTAGE FREQUENCY OF OCCURPENCE OF CEILING VFkSUS VIS181I|TYUSAFETAC FROM HOUL OBSERVATIONS

AIR hEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIFRIKE7 NL P[1OD OF RECORD: 74180-879tGTH: FEB OURSILl1|: 2]100-2300

CEILING VISIBILITY IN STATUTE MILESIN GE E GE GE GE Gr G1 GE GE GE r1E GE GE GE GE GE

FELT 10 6 5 4 . 2 102 2 1 1/2 1 1/4 1 3/4 5/8 112 1/16 1/4 0

NO CEILI 4.8 23.6 27.9 33.6 36.2 3.3 39.3 41.8 42.6 43.3 43.3 43.3 43.5 43.8 43.8 44.6

4E zOODoo 5.5 26.j 33.6 37.5 40.2 92.5 43.5 46.3 47.3 47.9 47.9 47.9 48.1 48.6 48.6 49.4GE 18 009 , Zb D 33-b 37.5 40.2 42.5 43.5 46.3 47.3 47,9 47.9 47.9 44.1 48.b 4A.6 49.4L 160009 5.5 26.0 33.6 37.5 40.? 42.5 43.5 46.3 47.3 47.9 47.9 47.9 48.1 48.6 48.6 49.4

GE 140001 5.5 26.U 3.6 37.5 40.2 42.5 43.5 46.3 47.3 47.9 47.9 47.9 48.1 48.b 4R.6 49.4uE 120009 5.5 26.1 3: .9 37.9 40.5 42.8 43.8 46.6 47.6 48.3 4q.3 43.3 48.4 48.9 4q.9 49.8

GE 1000 5.8 27.3 32.2 39.8 42.5 44.8 45.8 49.3 50.2 51.1 51.1 91.1 51.2 91.7 51.7 52.6GE 9nf00 6.0 27.4 32.b 43.5 43.3 46.0 46.9 50.4 53.4 52.2 5?.2 S2.2 52.4 52.9 5.9 53.7GE Spo01 6.1 27.9 33.6 4317 44 . ; 7.3 48.3 51.7 52.9 53.9 5.9 50.9 54.0 94.5 54.5 55.4

GE 70001 6.1 27.9 33.7 42.1 45.U 47.8 48.8 52.2 53.4 '94.4 54.4 54.4 54.5 55.0 5.0 95.9

.E 6'001 6.1 27.9 33.7 42.3 45.1 47.9 48.9 52.6 53.7 54.7 54. 54.17 54.9 S5.4 55.4 56.?

GE 5010 6.6 29.9 35.9 44.8 47.6 S0.7 51.7 55.9 52.0 58. 5R9.0 58.0 58.2 8.7 5R.7 59.SGE 45001 6.8 20.6 35.5 45.8 48.6 51.7 52.7 56.9 58.0 59.0 59.0 59.0 59.2 -9.7 59.7 60.5,E 40001 7.4 33.2 39.5 49.1 52.1 55.5 56.5 60.8 62.1 63.1 63.1 63.1 63.3 63.8 6X.8 64.6E 3500 l.8 34.4 43.8 50.9 54.3 97.5 58.5 62.8 64.1 65.1 61. 65.1 65.3 65.8 69.8 66.6

bE 313001 7.9 35.7 42.8 53.7 57.4 60.8 61.8 66.6 67.9 68.9 60.9 68.9 69.1 69.6 60.6 70.4

GE 25001 8.3 51.2 94.3 55.4 59.q 53.6 65.1 69.9 71.2 72.2 72.2 72.2 72.4 72.9 72.9 73.7GE 20001 8.4 38.5 46.0 57.7 62.1 66.8 68.1 73.1 74.4 75.4 75.4 75.4 75.5 76.0 76.0 76.9GE 1801 R.6 39.0 46.6 59.7 64.7 66.9 70.2 75.9 77.2 78.2 74.2 78.2 78.3 78.8 78.8 79.7LE 15001 q.8 40.0 47.6 62.0 67. 71.7 73.1 78.8 80.2 81.2 81.2 P1.2 81.3 41.8 81.8 42.6GE 12601 8.9 41.0 48.8 63.6 69. 1 74.7 76.0 62.1 83.5 84.6 84 .8 44.8 85.0 85.5 81.5 86.3

GE 20001 8.9 41.3 49.2 64.3 70.1 76.0 77.4 84.0 85.3 86.8 a6.9 46.9 87.1 87.6 87.6 88.4

GE 9001 8.9 41.3 49.1 64.3 70.2 76.7 78.0 85. 1 86.4 87.9 84.1 88.1 88.3 98.8 88.8 89.6L.E 8009 8.9 41.3 99.2 64.5 70.6 77.2 78.5 85.6 87.4 89.1 8).4 89.4 89.6 90.1 90.1 90.9bE 7O9 8.9 41.3 49.1 64.5 70.1 77.4 78.7 86.0 87.9 89.6 84.9 89.9 90.2 90.7 9o.7 91.6GE 6001 8.9 41.3 49.1 64.5 70.6 77.4 78.7 86.4 89.8 91.6 91.9 91.9 92.2 92.7 92.7 93.6

GE 500 8.9 41.3 49.3 64.8 71.1 71.9 79.2 87.8 91.4 93.7 94.0 94.0 94.4 9S.0

95.0 95.9GE 4U0 8.9 41.3 49.3 64.8 11.1 17.9 79.2 87.8 91.6 94.0 94.5 94.7 95.0 95.9 99.9 96.7

GE 300 8.9 41.3 49.3 64.8 71.2 78.0 79.7 88.4 92.2 99.9 95.4 99.5 95.9 96.9 96.9 97.7GE 200 8.9 91.3 49.3 64.8 71.2 7b 0 79.7 88.9 92.2 99.9 95.5 95.9 96.7 97.9 98.2 99.2GE 109 8.9 41.3 49.3 64.8 71.7 78.0 79.7 88.4 92.2 4.9 9%.5 96.0 96.9 98.0 98.3 99.7

,E . 9 8.9 41.3 99.3 69.8 71.2 78.0 79.7 84 9!.2 94:9 95. 96.0 96.9 98.0 98.3 100.0

TOTAL NUMBER OF OSERVATIONS: 605

GLOBAL CLIMATOLOGY BRANCH PkC(N3A5( FR-jUUN(Y Or OCCJiRRNPOL OF1f

I I 3. vI- V I PILITYU5AFETAC FRO" HOU9LY OSI VAITONSA;IR .(AT HER ASERVICE /;lfiC

STATION NUM3ER: 0632,3 ST ATION NAME: Z|I RIK.:1" NL P! 10( Of (30pu: 7l-S7

90136: Ftp HOURSIL91: AILL

..................................................... :::::::::::::::::::::::::::...........................................

CIILING 899131I T~I 1(IN I 61 67 2,E 01 (.E 3,. (it liT 5ii 3,7 r & (f c.( oJ i,

NO CLIL I . 1 9. 0 22. 7 28.9 31.2 33.1 31. 3 3t.1 38.4 19.4 39.9 4:).C %').1 4U. 3 4 . 1 .-

b. Oco0 1 6.9 21.9 2S.7 32.3 35.1 36. 0 39.S 913.1 99.5 9S.6 46.1 4b.5 96. 96.6 46.6 91.iLE 183001 6.9 21.6 25.? 32.9 3S.- '.1 39.5 Is3.Z 11.6 5..76.; 4 6 - 6.5 46.1 7 !.1 '1.3Gr 160001 6.9 Z1.6 Z9.7 32.9 35.q 38.1 39.S 903.2 919.6 9S.1 96.' 9 6 .6.9 ,b.T 96.1 9 1.36 1W000 1 6.9 71.b 29.i 32.9 35.- 38.1 39.6 9t3.2 99.6 95. 96. 3 46.9 96.5 96.? 97.1 1 .3GE 12CO0 1 6.9 21.9 26.0 32.1 36.? 38.94 39.9 93.6 99.9 46.2 96.6 96.6 96.9 e 1 91.1 47 .I

"6 10O0 1 7.1 29.1 26.6 35.1 39.9 9.? 93.3 197.2 4 .? 50.1 110.6 0.1 53.8 "1.1 3.31 1.6

GE 9000l 7.6 21.94 29.0 36.2 40l.) 92.9 1991.0 97.9 41.. S 3.8 93.9 .1.S 51.6 91.9 911.9 .2.4

.1 81001 7.7 75.0 29.4 31.2 41.1 93.6 4S.2 99.2 "1.9 S2.3 5'.9 93.0 3.1 9,3.9 511 53.9,I 7'UOI 7.7 25.2 3.1 37.6 411. 99.0 95.6 99.7 I.4 q2.7 53.3 53.5 5.6 ';3.b 9I.7 F ,9.4G3 6r(;O I 1.8 25.2 30.2 31.8 491. . 91.2 99.9 99.9 01.1 3.1 93.1 93.9 59.0 54.2 54.2 S4.7

07 5CO01 8.1 26.2 it.9 39.9 13. 96. 1 9?.8 52.2 53.9 55.4 56.01 96.2 56.3 96.9 16.9 7 .1(0 E4d01 8.5 27.3 32.7 11.0 95.' 98. 1 49.7 5.1 5S.9 51. 5-.I 1 8.3 58.5 9a.7 598.7 19.3ur 9400 9.9 29.9 39.3 99.6 49.r 51.9 53.7 56.3 60.1 61.8 67.9 62.7 62.9 63.1 (0.2 63.16E 35001 9.9 31.3 37.3 96.6 51.1 5.0 55.9 60.6 62.9 69.1 6%.P 65.1 65.2 65.9 s .9

, (16.u

oE 3900 1 0.7 33.2 39.6 19.9 59.S 57.6 59.6 69.5 bb. 68.1 6.9 69.1 69.3 69.6 69.6 7C.3

GE zco1 3.9 39.9 11 .2 S1.9 56.9 60.2 62.3 61.5 69.9 71.2 71.7 12 72.9 72.? 1 . 73.GE C001 33.2 '5.5 92'.6 93.4 59.3 62.1 6s.0 70.4 72.9 79.2 ?S .3 7S.9 7.6 1s.9 7%.9 7b.4UE 1800 11.9 36.0 93.3 S.9 6D. 69.1 66.9 12.1 11.1 76.0 76.9 7.3 ??.S 71.8 77.8 18.3GE 15601 1.6 36.1 19.3 96.0 62.'. 66.6 69.3 7.1 17.2 79.2 8"1.1 90.5 80.1 11.0 81.0 1.607 120n01 11.7 37.1 15.3 51.2 69.1 68.7 71.3 77.6 79.9 P3.9 8 3.0 93.3 83.6 A3.9 8.9 89.9

u1 10001 11.7 31.9 s.3 57.b 64.? 69.9 72.2 76.9 81.2 83.. 89.5 99.9 RS.2 95.9 81.5 r 6.3f,[ 9001 13.7 37.5 ?9.: 1. 8 69.3 70.0 72.8 79.9 2.9 *9.6 ,.29 96.3 16.5 96.8 16.9 97.9E 8001 33.7 31.9 99.5 98.1 69.8 70.7 13.6 81.2 691. 66.9 81.9 98.9 88.7 69.3 89.3 99.6

UD 701 11.7 37.1 9.6 56.6 66.9 1.3 19.9 82.9 89.% 86.0 89.6 90.1 9(1.9 99.8 9.6 93.6E 60 11.7 37.7 4s.9 56.7 66.5 71.5 7U..6 82.8 86.1 b9,U 9". 93.9 93.1 92 .1 92.1 92.?

(07 IC31 11.7 37.7 9l5.0 98.8 66.1 7 1.8 75.0 63.9 81.0 93.1 9'.1 92.8 93.2 93.b 93.7 94.I 91301 13.7 31.1 9. :3 98.9 66.1 71.8 15.0 83.6 6b.1 o0.: 92.9 93.6 99. 919.6 99.1 99.1

, .j01 13.7 7.? 9.L 98.9 66.o

73.9 75.3 83.1 67.3 91.1 93.9 99.5 9z.2 99.9 96.0 96.6E 7001 I31.7 31.7 96.3 58.9 66." 71.9 75.1 83. 1 87.3 *I.2 93.7 99.1 9S.5 96.8 97.0 '48.0

GE 1001 11.7 31.1 96b.0 96.9 66.o 13.9 7S.1 83.8 81.4 93.3 93.8 91.9 99.1 97.0 47.3 99.6

1.1 01 3 3.7 37.7 4".0 ".9 66. 71.9 7.1 83.8 81.9 P1.3 93.8 99 .9 99.1 97.0 97.3 I0.U

T0TAL NU8P8ER OF 0RS8[VATIONS: 9997

jo

_.

3,10,51 CIR*lrLO3,Y I'8ANCH P36C24918&C FR-QUENCY 0F OCCJ8PELE OF criILIMu VrRSus VISIBILITY

SIATIC'S NUPIOLP.: CV1753 Sf2871W 889: Z217826fl ML OFI0 (43.'3p39: 80-8790876: MAP H0URSILSTI: 1000-023'

13I 2. VISIILITY IN SlAIU73 91135IN rE G( SF3 (1E GE G- GE 02. ft G1 "I 'it GE 6f 61 L.(

'ItI I I f, 6 s 41 1 2 1.42 2 1 112 1 1/N 1 1/N 5/8 112 11/16 1/4 1)

Nn0 C IL1 I ~. . I. 1 21.' 2. 9 27. 7 29. 6 31 .1 35.71 36.8 77.6 37.6 '8 .2 38 .7 18.9 39.2

'9.6

61 214rjnI 2 0.~ 1 .7 23.2 6.9 29.q 32.0a 33.8 38.84 39.5 4O.6 4".6 4 1.4N 4 N. 9 N?.0 4N'.N N! 3. uA, f 10.01 11. j .. I 2.2 26.9 29.7? 32.0a 33.8 38.N 39.5 410.6 413 . h 2.4 82.9 q 82.0 8?.N 83.0j1 lbr'U1 I 23.. "j). 7 23 .2 26.9 29.9 q 2. ) 33.6 38.4N 39.5 40.6 N?1.6 N1 .8 821.9 142.0 42.4 N 3.01 L I 'C'O 10.7 Y 23. 9 is .8 21.*1 30. 1 31. 2 33.9 38.5 39.6 40.8 40.A 4I .6 N2.0 42.2? N2.5 83.ZG II, , 202 r?. 8 2 I. 2 23.71 27.8 30.4 32. 5 34.2 38.9 80.0 81 .1 481.1 4 1.9 82.8 42.S5 8.8 8 .3.S

(.1 lc"3301 12.9 So I 26 S.9a 3u. 1 34. 7 36. 3 38.1 8l2.? 8 3.8 44.9 44.9 A 9. T 14b.? 2 6.3 S b.7 N. 5(1r 91 .0121.9 '8. 5 17.i 3 2. 2 34.9 36.9 38.7 93. 3 88.8 '45.5 8 .5 86. 3 86.8 87.3 8 7. 3 87.94.1 rl 8047 I 1?.8 4 -3. 28?.2 32.6a 36.' - 9.0 810.8 85 . 5 86.7 87 .8 87 .8 48.6, 89.0 89.2 89.5 S5). 1

r It 20)1 17.8 2. 6 23.3 73.23 37. 3 39.5 824.2 846.0 87.1 88., 49.? 89.0 49.5 89.7 S11.0 HJ.b.2( 6" U I I2,2.8' ? 2. A 28.s 33.1 37.8 39.6 824.4 86. 2 87 .3 88.8 8R.4 89.2 89.7 89.6 11r.? '. 8

.1l ',7 onI 1'.' F, 6b. 0 2.5 . 38.8 3 9.., 8 1.6 87 .3 8.6 89.7 50.8 51 .0 51 .8 52Z.2 ; 2.8 52 ?. 7 3 .349 '100 1 18. L 29 . L 12.9 36.8 81 ."1 88.8 86.2 51.8 52.9 58.0 s8. I S4.9 sr5.% 55.6 55,.9 5.6.5

.7 %5077 25I. $ 3.8 16 .9 812.8 88.9 S1.0 52.7 58.8 59.6 60.8 61..1 61.9 62.8 62.b b,2.9 f37. 51 31 -^ 16.8 36 .j 83 .3 8 . 3 52.71 55.84 57.3 63. 1 68 .2 6S.8 161 . 66.6 b7.3 67.2 67.5 68.2

63 ]P5LO 1b2.7I I 7. b 87.8 48.b 5 %. 2 57. 8 59.7 66. 1 67.2 68.5 69.8t 69.6 73.2 7 0.1 70.5 11..2

,J 2.'I 27.( I 9. so !.4 53.3 5 6.9 5;9. 6 61.5 67.8 b8 .9 70.2 r".5 721.3i 71.8 72.3 77.3 72 .9"L 11 1 17 12.2 913. 5 .. 4 S1.9 58.6 61. 3 63.2 69.6 70.7 72.0 ?,,.3 7 3. 1 71.6 73.7? 78.0 78. 74,3 2*Lr) I7.2 4J.m 85 .3 W . 9 59.71 62.84 68.3 70. 7 72.2 73 .81 11.7 781.5 75.3 15.2 75 ,.5 76.21(,f2 2' 00 17.5S 82.5 89.3 55.7 1 2. 66.2 6 8.3 75.0U 16.6 77.9 7 A. ? 79.0 79.5 79.6 79.9 01.6'A I,, rI 271.m 473..5 53.6 580.3 0 bs 69.3 11.8 78.5 80.2 811.8 82 .7 82.5 83.0 P3.1 b63.8 88.1

1 10l 17.9 p, 83t.6 c> I. I1 5.6b b 6.5 69. 9 72.5 79. 1 80.7 42.2 p 1.5 a83. 3 83.9 88. 1 8.84 85.03 un 13 ?7.8 43.m L,21.9 r,9.I b 6, 7 ?1. 0 73.6 40.8 82.11 83.8 88.2 1 4-19 85.5 85. 7 66.0 86.6

'.f 1,01 27.8 81.9 52:. 6,2.4 68. 72.8 75.0 0 4 63. 85.8 86. : 9 87. 87. 87.9 8.5

.3 6,,I 17.8 88. 1 S?.5 61.3 70r.2 73.7 1 7.2 81.8 86l,.3 pi8. 7 b9., 90. 3 90.9 91.1 91.8 9i -)

4,2 U0 127.8a 81. 1 52. 62. 70 T. I.. 78. 78.0 85.8a 88.] .1 9 1 2.2 '42.0 92. 7 9Z.8 93.? 93.6a eUriI 27.a8 1 8.2 52 .1 6 . 5 70.3 78.5 78.3 86.6 89.? 91.9 9 ;' 93.8 94.4 98.6 98.9 95.5

3. 3101 1 7.A 88.21 52.5 62.5 70.9 M.7 78.5 86.8 89.5 92.8 91.S 98.8 95.2 95.80 9'.7 96.1'If ?or' 231.8 88.1 52 .5 61 .5 M. ) 78.71 78.5 86.9 89.6 92.71 931.8s 98.7 95.81 9b.0 96.3 97.3'.3 I10 onI7 .9 884.2 I S?.5S 62.5 70. 78?.71 78.5 8l.2 8 9.8 9?.6 9 3 9 981.9 95.5 9b. 3 9b.7 99.Z

01 1 27.8 884.1 S?7., 63.5 70.3 4 78.7I 8.5 87.2 8 9.9 92.6 91.9 04.9 95.5 96.3 98.7 100.0..............................................................................

73of At NUMBE3 0R Of FISF RVA I085 6,08

bLObAL CLIMATOLOL.Y BRANCH PNCENTAGF F5 RQUE9CY OF OCCJRPENLE OF CEILNGd v(RSUS VISIBILITYUSAF[TIA C FROM HOURLY OBSERVATION5AIR WEATHER SERVICL/MAC

51AlION NUi 'U4: 063253 Sf8TION NA ME 717[IKIf NIL p(r)Iu CF PECOPO: 90-@7MPNT4: "AP HOUQSILSII: 0107-35C0

ILIN& VlSIB9 IN SATUIN G 61 6F 77 13 GE 6. GL GE GE. GE GE GI GE 7 1( (

F(E IT 10 6 5 2 112 2 1 1/Z I I/i 1 1/9 S/8 1/2 1I16 1/,......... e........... .......... .......... .......... ........... .................... .......... .......... ..........

NO CElIL 1 9.7 19.9 22.4 26.1 30.3 32.6 39.2 36.8 37.6 39. S9.4 19.5 39.5 10.2 9j.7 91.5

(,E ,UCUOI 10.0 21.6 29.5 28.5 33.2 36.0 37.6 0. 2 41.2 92.8 4'.! 93.. 13.6 99.2 99.? 95.5(. 18oo01I 1

0.0 :1.6 24.5 28.5 33.? 76.0 37.6 90.2 41.2 2.8 91.1 43.4 93.6 99.2 99.7 95.5

b[ 1bo00I 1.0 71.6 29.5 26.5 33.? 36.0 37.6 0.2 91.2 42.6 4 3.1 9S.9 93.6 99.Z 99.7 91.S

('E le9oOI F).0 21.7 24.b 28.? 33. 4 3b.1 37.8 90.9 91.3 42.9 4!.3 93.b 3.8 94.4 4.9 95.?

6 120001 10.0 ?1.9 29.8 26.8 33.5 36.3 37.9 90.5 91.5 43.1 93.9 93.8 93.9 99.6 9-. 1 95.5

6C IUjOOC1 3.91 9.1 27.2 32.1 37.6 90.5 92.1 99.9 %5.9 97.5 ?.9 9.1 993 98.9 99.9 5.,(. 90001 31. .245 7.b 32.9 38.1 91.a 92.6 95.9 96.9 98.0 49.3 98.6 49.8 99.9 49.9 50.7

GE SPO J 11.2 25.6 28.8 33.1 39.. 92.6 9.9 917.2 98.1 99.6 5.1 5 (.9 50.6 11.Z 51. 75Z0

G(E 7UOl 11.2 25.8 29.c 33.9 39.7 92.8 99.6 97.3 98.3 99.9 5C.2 50.6 53.? 53.4 51.9 5.?

A 6E1001 11.2 26.3 29.5 39.9 90.5 93.8 5 5.5 98.3 99.3 50.9 51.7 51.5 51.7 -2.4 52.8 53.b

tA: 5rcol I I. 27.6 33.8 35.8 92.1 95.9 97.2 50.6 51.7 53.3 13.6 59.0 59.1 59.8 5o.3 6b.I11 9001 12.0 27.3 31.9 36.5 92.9 96.9 98.1 51.5 52.9 59.5 59.9 55.1 55.3 5.9 56.9 57.21.1 90001 13.1 31.9 36.0 91.1 99.3 51.9 53.6 57. 1 58.3 90.0 6b.6 60.9 61.1 11.8 62.2 63,JG.t 35o 1 13.8 33.9 37.9 93.6 5n.9 59. 1 55.9 59.3 60.6 62.2 62.9 63.2 63.9 69.0 69.5 65.3

GE 30001 19.9 35.8 93.9 91.0 59 . 57.1 59.6 63.7 65.0 66.8 67.6 67.9 68.1 68.7 69.2 70.0

(E 2; 0 15.1 37.9 93.1 99.b 56. 1 60.5 62.9 67.1 68.9 10.3 71.2 71.5 71.6 72.3 7 .8 73.b(A .0001 15.2 90.2 95.9 52.8 60.3 69.2 66.1 71.0 72.9 9.9 715.2 75.5 75.7 '6.3 76.8 77.6

(A: 18001 15.2 90.5 96.9 53.3 bo. 69.? 66.6 71.5 72.9 75.U 7.9 76.2 76.3 77.0 77.5 78.3Af 15s0 15.2 11.8 97.8 59.8 62.7 96.3 b68. 73.9 79.9 7?.0 77.8 78.3 78.3 78.9 79.9 80.2G E I20n 15.6 92.6 98 .9 56b 69.5 68.6 70.? 75.7 77.1 79,3 80.3 90.9 80.6 pI.2 81.7 82.5

(A 1r1 I 15.6 9Z.8 99.3 56.9 6%.3 69.0 71.2 76.5 18.0 O. q 9.3 8I9 81.5 -2.2 62.7 83.5

G6 OO31 15.6 92.8 99.3 57.9 65.6 69.? 71.8 71.l 78. P1.2 87.0 92.3 82.5 43.1 R3.6 P%.%

UE 'u0 1 15.6 92.9 99.6 58.5 66.9 71.2 73.9 79.3 60.9 96.6 89.9 99.6 89.9 95.6 86.1 86.9L, 7001 1'.6 93.1 53.2 59.3 b8.1 72.6 79.9 83.2 82.8 P5.7 96.5 86.9 87.0 7.1 8.2 99.0(A 601 15.6 43.1 53.9 59.8 69.9 73.9 76.5 83.8 85.7 38.8 139.6 90.0 90.1 90.8 91.2 9z.l

(. SGO 15.6 93.1 53.4 59.8 69.9 73.9 76.5 89.9 86.9 89.5 90.9 90.8 90.9 91.6 92.1 92.9L.6 9o0 15.6 93.1 53.9 60.0 69.5 79. 77.3 85.7 67.7 90.9 91.9 92.2 92.9 93.0 91.S 99.3

6E TO0 15.6 93.1 53.9 60.0 69.5 79.?7 1.3 85.9 67.8 91.1 97.2 92.7 92.9 93.7 94.3 95.1Gr 703 15.6 93.3 5.9 60.0 69.5 79.7 77.3 65.9 67.8 91.I 97.2 92.9 93.0 99.2 95.0 96.6

E( 3uoI 15.6 93.1 53.9 60.0 69.5 79.7 77.3 85.9 88.2 91.9 97.s 93.2 93.9 99.7 95.6 98.9

(A 01 1 .6 93.1 53.9 60.0 69., 79.7 77.3 85.9 88.? 91.9 92.5 93.2 93.9 99.7 95.6 103.0•....,...............,,..o,..,................o,..o,..... ,.,.......,...........,.......,........,..,......

I07L MU9ME R Of OBSCRVA ONS: 617

1 .__

0GlO81 CLIMATOLOGY BRANCH PERCENTAGE rR QUENCY OF OCCJRRENCE Of CEILING VFRSUS VISIBILITYUsAFf IAC FROM HOUTLY ObSERVAT3ONS

AIR WEATHER SERV1CE/MAC

.ATION NUMBER: 063750 3A1ION NAME: ZItRIKZE- NL P6310D OF RECORD: 78-81MONTH: MAR HOURSILSTI: 0600-O6CO

IN I G E G( GE GE rE G GE GE GL GE rE GE GE GE 6E GEFELT 9 10 6 5 N 3 2 112 2 1 112 1 129 1 319 5/8 112 S/16 1/4 L

NO CLIL I 8.6 36.2 17.5 19.7 22.3 23.3 29.2 26. 2 26.7 78.6 29.6 3J.3 31.2 1.4 31 .6 32.3

uE 200ci 9.3 18.7 20.3 22.8 25.9 27.2 Z.9 31.2 31.7 33.9 34.9 35.7 36.7 37.1 37.2 16.uGE 18co031 9.3 18.8 23.9 22.9 26.1 21. 9 28.6 31.3 31.9 3 .1 35.1 15.8 36.8 37.2 37.4 38.1

.E 3bC0)1 9.3 18.8 23.9 22.9 26.1 27. 9 28.6 31.3 31.9 38.1 311.1 35.8 36.9 X7.2 37.4 38.1UE ICO 1 9.3 39.8 23.9 22.9 26.1 17.9 28.6 31,3 31.9 39.1 3€.I 35.8 36.q 37.2 37.9 38.16F IOL1 9.9 19.3 23.9 23.3 26. 27.8 29.0 31.9 32.5 19.8 3. 9 36.1 S7.7 38.1 39.3 !,.l

GE 100001 -. 7 21.9 23.2 26.1 29.' 31.6 32.8 35.7 36.2 38.6 39.7 40.4 41.4 91.9 q2.O 92.86E 9(001 10.6 23.3 25.1 2b. 32.3 9.1 35.2 38.1 38.7 o1.0 9?.? 92.9 93.9 99.3 99.5 95.j

6E 8000 1 11. 29.6 26.9 30.1 39.1 36.1 37.91 0.9 91.0 93.3 99.5 95.2 96.2 96.7 46.8 97.5GE 70o00 33.2 29.9 26.7 30.9 39.3 36. 37.7 40.7 93.3 93.6 99.9 95.5 96.5 97.0 97.1 97.84E 60001 33.3 25.9 27.1 31.0 35.1 37.1 38.9 93.6 92.2 99.5 95.7 96.9 97.9 97.8 9A.0 98.7

GE 5O00 32.0 26.9 29.3 32.9 37.3 39.0 90.9 9.1 99.6 :7.0 99: . 99.4 99.9 3 . 50.6 1. : 3GE 950 DO 12.6 27. 33.3 39.6 38.8 91.0 92.5 96.2 97.0 9.9 51.0 5.7 52.8 533 5 ,5 9.2GE 9rUO 13.6 30.1 3?.8 37.5 91.7 99.2 95.8 99.7 50.6 53.0 59.9 55.7 56.7 .7.2 57. S 8,.1GE 3500 % . 32.0 39.8 39.9 99.3 46. 9 48.3 52.3 53.3 55.8 57.7 58.9 59.9 60.1 63.3 61.0Gr 30u01 35.9 33.9 37.0 92.3 96.7 99.3 50.9 55.7 56.7 59.3 61.2 62.0 63.0 63.9 b9.1 69.9

GE 2 UO 16.2 35.9 39.1 99.5 99.1 52.6 59.6 59.7 60.7 6j.3 bk°l 66.5 67.7 68.6 6R.7 69.9

GE 2CO1 16.5 37.L 43.3 96.2 53.? 55.2 57.5 62.8 63.8 66. 6A.9 69.6 70.7 71.6 71.7 72.5GE 18001 17.2 38.7 92.5 98.9 53., 57.5 59.9 65.1 66.1 68.8 7n.9 72.0 73.3 79.2 79.3 75.1UE 1009 17.7 59.6 93.5 99.7 55.? 59. 9 63.9 67.2 68.3 71.2 71.3 79.5 75.9 76.7 76.8 77.5rE 12001 19.3 1 %. 3 99.6 51.9 57.S 61.9 69.3 69.9 70.9 73.8 76.3 77.9 78.7 79.6 79.7 80.9

GE 10001 18.1 40.3 99.6 51. 58.0 62.6 65.1 70.7 71.7 79.6 77.1 79.9 79.7 A3.6 a9.7 81.9Gr 9OD 18.1 90.9 %9.9 2.5 58.9 63.5 66.1 71.9 73.0 75.9 7q.4 79.9 81.2 82.0 97.2 sg .9GE 9001 18.1 93.1 95.8 53.5 60.1 69.6 67.2 73.3 79.5 77.5 b'.0 93.6 82.9 A.9 89.3 95.1GE 7009 38.3 93.0 95.9 53.9 61.' 66.1 68.7 75.1 77.2 0., 9'.2 9.9 8b.2 97.9 87.5 89.6E 600 11 e. 1 413.' 96.1 54.3 61.1 66.7 69.6 76.8 78.9 R1.9 8.6 R6.5 8.0 19.3 89.3 90.3

LIE sool 1s.1 91.2 9.1 3S.5 62.2 67.1 70.1 77.5 19.1 92.8 RV.q 87.7 89.1 90.9 93.6 91.6GE 9jo 18.1 41.2 96.1 S4.5 62.7 67. 70.% 78.0 79.6 A3.3 8f1.5 98.6 90.1 91.9 91.6 92.b

GE 3001 19.1 1.2 96.1 54.5 67.2 67.9 70 .9 79.0 79.b 83.5 86.7 89.8 90.9 92.0 92.3 93.9Gf 7001 Is.1 1.2 95.1 39.5 62.2 67. 9 70.9 78.0 79.7 93.6 9a.9 A 9.0 90.6 93.0 93.3 95.9! F ol 38.1 1.2 96.1 S%.5 62.2 67.9 70.9 78.0 79.9 A3.8 87.1 9.3 99.9 93.6 99.1 99.1

GE 7I A8.3 93.2 9b.1 59.5 67.2 67.9 70.9 78.0 79.9 93.8 87.3 9.3 90.9 93.6 99.3 IrO.0

OTAL NU48ER Of OBSERVATI094: 69r

GLOBAL CLIMAIOLOGY 8RANCH PfRCINTAGI FR3iUECY OF OCCJRRENC OF CEILING VrRSUS VISIBILITY

USAFETAC FROM HOURLY OBSERVAIIONS


STAION NUMBER: 063250 STATON NAME: Z11RIKZ[E NL P(PIOD or RE.ORD: 78-87MONTH: MA& HOURSLST : D901-1100

............................................................*.*...........................................................

LE L1NG VISIBILITY IN STAUTF MILES

IN GE 6r GE GE 6 GE 6E GE GL GE rL GE GE GE n1 E IFEET I 10 6 5 3 3 2 112 2 1 112 1 1/4 1 3/4 5/8 112 5/16 1/4 0.... *.................*.*.......................................*..°.................°.........**...*....*................

NO CEIL 1 11.3 15.1 15.9 18.2 21.5 22.8 23.8 25.0 26.8 28.5 ?4.9 29.1 29.4 ?9.4 2Q.4 '0.0

r.E 210001 13.0 19.1 23.3 2-28 26.? 28.0 29.5 31.0 32.8 39.9. 35*,0 35.3 35.8 15.8 35.8 3b.4

G. 28300I 13.6 19.7 23.9 23.% 26.9 28.6 30.3 31.7 33.5 35.2 35.9 16.1 36.5 3b.S 36.5 7 .1fq 160001 13.6 19.7 20.9 23.9 26.9 28.6 3C.3 31.7 33.5 352 3,.8 36 .1 36.5 36.S 36.5 37.1

GC 1910001 13.6 19.7 23.9 23.9 26.1 28. b 3n.3 31. 7 33.5 5.2 3S.l 36.1 36.5 36.5 36.5 37.1GE 12rUa0 13.7 20.3 21.b 29.1 27.6 29.9 31.1 32.6 39.9 36.1 3s.8 37.1 37.6 37.6 37.6 78.2

6C l00001 19.0 21.6 23. 26.9 30.1 32.2 39.9 35.9 37.9 39.5 4r.2 -0.5 91.0 41.0 41.0 91.6GE 90031 19.5 22.8 29.9 28.3 32.2 39.3 36.S 38.5 90.9 92.2 92.9 93. 43.7 43.7 43.7 99.3(F 81001 19.S 23.9 25.3 29.7 33.A 36.2 38.5 90.9 92.3 99.3 r,.0 45.3 95.8 95.8 95.8 96.36E 7"00 29.5 23.7 25.6 30.1 39.3 36.7 38.9 90.8 92.8 99.7 45.5 5.8 96.2 96.3 46.3 96.9(,f 6D001 19.9 29.3 26.2 30.7 39.9 37.3 39.6 91.7 44.o 45.9 5,.6 96.9 47.4 97.8 97.8 98.9

bF SpOOl 1.2 5.8 27.7 32.3 36.9 99.3 91.9 99.0 96.2 98.1 4A.9 49.2 99.6 50.1 57.1 50.7SC q,o0 15.5 27.6 29.5 39.3 38.9 41.6 99.1 96.5 98.9 11.3 52.2 52.8 53.2 S3.9 53.9 54.7(.1 9000 16.9 30.3 32.5 37.7 92.R 95.6 98.3 50.8 53.4 56.0 57.1 57.8 5.3 59.0 59.0 59.8SE 33001 17.1 32.C 39.6 93.2 95.6 98.6 52.7 59.2 56.8 59.5 61.5 61.3 61.7 62.9 62.9 b3.2GE 370o1 19.0 39.6 37.9 93.2 99.3 52.2 55.4 58. 61.0 63.6 6.7 65.7 66.2 67.1 67.1 67.8

(.1 25001 19.2 16.8 39.6 95.8 51.7 55.1 58.6 61.7 b.9 67.1 681 69.9 69.9 7j.8 70.8 71.5..1 2300 1 q.8 38.2 92.3 97.7 53.9 57.9 61.0 69.2 66.9 69.6 70.6 72.0 72.9 73.3 7S.3 74 .6E I8U0 r3.6 39.3 92.9 99.2 55.6 59.2 62.7 66.0 68.7 71.9 7?.4 73.8 79.2 75.1 75.1 75.9GE 25SU0 21.2 90.9 93.9 53. 7 57. 1 61.0 69.7 68.9 71.2 79.2 75.6 76.9 77.3 78.2 79.2 79.0

I. -DOI 22.1 91.9 5.i 52.1 59.1 63.3 67.1 70.9 73.9 76.8 79F. 79.9 79.9 P0.8 80.8 1&..

,C 10001 .2.2 2.3 95.9 3. 1 60.1 64. 1 67.8 71.8 79.8 77.8 79.1 80.5 90.9 R1.8 81.8 82.6I7 9L0t 22.2 2.31 45.2 53.4 60., 69.5 69.3 72.9 75.9 78.9 79.7 91.1 81.5 pR2.4 82.9 83.2

"I7 900I 7. 2 93.2 117.2 .5 *7 62.1 66.3 73.2 79.7 77.6 90.8 827 89.2 89.6 85.5 85.5 S6.31C 700 22." 93.7 97.7 55.1 62.7 66.9 70.8 75.6 78.7 82.1 89.1 -5.8 86.3 97.2 57.2 87.9.[ 60 22.9 93.7 97.7 55.1 62.7 66.9 70.8 75.7 79.1 92.7 89.9 P6.7 97.3 88.9 48. 89.1

Il 1 2O ;2.9 93.1 97.7 55.3 62.9 67.2 71.1 76.0 79.9 P3.3 86.3 88.2 89.0 02 90.2 90.9v[ 9j 22.9 93.8 17.8 55.9 63.' 67.5 71.9 76.5 79.9 A3.9 87.0 89.1 90.0 91.9 92.9 92.1GE 300 1 22. 93.8 97.8 55 .9 ! 3. 67. 5 71. 76.5 79.9 93.9 97.V 99.1 90.2 92.1 92.1 92.8UF 2001 22.9 43.9 97.9 55.9 63.t 67.5 71. 76.5 80.0 9.2 87.3 99.1 90.9 99.0 99.2 96.0[ IUD0 22.9 43.A 97.8 SS.% 63.' 67.5 72.9 76.5 80.0 R9.2 87.3 89.7 90.9 99.0 99.2 98.9

(.7 1 22.9 93.8 97.b 55.9 63.3 b7.5 72.9 76.5 80.0 R9.2 87.3 89.7 90.9 99.0 99.2 100.0

10T*1At 9U99C80 OF OPS RVA I IONS: 672

* ..

GLOBAL CLIMATOLOGY BRANCH pERCENTAGE FREOUENCY OF OCCURRENCE OF CEILISG VFRSUS VISIBILITYUSAFET AC FROM HOURLY OBSERVATIONS


STATION NUMBER: U63250 STATION NAME: ZIERIKZE NL PERIOD OF PECODO: 78-87PONTH: MAP HOURSILSOI: 1200-1400

IN GL 6E GE GE GE G. GE GE GE GE GE G1 GE GE GE GE.FEET 10 6 5 4 1 2 1,2 2 1 112 1 114 1 3/4 5/8 1/2 9/16 1/4 3.... .................................................. ....................................... ..................

NO CEI L 7.9 12.9 14 .3 16.2 19.? 20.2 22.8 26.5 27.5 28.7 29.1 29.2 29.2 29.2 29.2 29.2

GF 20020 10.1 17.1 19.8 21.3 24.R 26.4 29.5 33.8 34.8 36.2 36.7 36.8 36.8 36.8 36.8 36.8LE 18E 001 10.4 17.b 19.5 22.1 25.6 27.1 30.2 34.6 35.5 36.9 37.4 37.5 37.5 37.5 37.5 37.5

GE 16000 10.4 17.8 19.5 22.1 25.6 27. 1 30.2 34.6 35.5 36.9 37.4 37.5 37.5 37.5 37.5 37.5GE 1400 10.5 16.3 19.9 22.5 26." 27.5 30.6 35.0 36.0 37.4 37.8 37.9 37.9 37.9 37.9 77.9G E I2GfO I 10.A 19.1 zI.1 23.6 27.1 28.7 31.7 36.1 37.1 78.5 3q.9 39.0 39.0 39.0 39.0 39.i

GE 100001 12.2 22.1 24.3 27.7 31.3 33.1 36.2 40.17 41.9 43.4 43.8 44.0 44.0 44.0 '44.0 44.0,E 90001 12.5 2Z.9 25.3 28.8 32.4 34.3 37.4 41.9 43.0 44.5 44.9 45.1 45.1 45.1 45.1 45.1

1E 8000 12.9 24.0 26.4 30.2 33.b 35.7 38.8 43.5 44.9 46.6 47.2 47.3 47.3 47.3 47.3 47.3

GE 71'001 12.9 24.2 26.5 30.5 34.1 36.0 39.2 84.1 45.5 47.2 47.8 47.9 47.9 47.9 47.9 47.9GE 60c0 12.9 24.2 26.5 30.5 34.1 36.0 39.2 4.2 45.8 47.5 4P.0 48.2 48.3 48.3 48.3 48.3

GE 5o00 14.0 26.4 29.1 33.3 36.9 38.9 42.1 47.3 49.4 51.3 51.8 52.0 52.1 52.1 52.1 52.1GE 45001 14.9 28.4 31.3 !5.4 39. 41.6 44.9 50.1 52.2 54.1 54.6 54.8 54.9 54.9 54.9 54.9UF 40001 16.4 30.9 33.7 38.1 42.4 44.7 48.5 53.7 55.9 58.1 58.4 59.0 59.1 59.1 59.1 5 .1FE 3500 1.3 34.0 36.9 41.4 45.4 48.0 52.0 67.2 69.4 61.7 62.5 62.6 62.8 62.8 62.8 62.8GE 37001 19.2 36.5 39.7 44.9 49. 52.7 56.7 61.9 64.2 66.7 67.6 67.7 67.8 67.8 67.8 67.8

GE 25031 20.2 40.3 4 .5 49.3 54.5 57.9 62.1 67.6 69.8 72.3 73.5 73.6 73.7 73.7 73.7 73.7(.E 2001 21.6 42.7 46.2 52.0 57.6 61.0 65.2 70.8 13.0 75.7 76.8 77.0 77.1 77.1 77.1 77.1(,F 19001 22.1 44.4 44.7 54.1 59.7 63.1 67.3 73.0 ?5.3 77.9 79.1 79.2 79.4 79.4 79.4 79.4

E IG001 23.3 46.S 5.3 56.9 62.6 66.2 70.9 76.7 78.9 81.9 81.3 83.4 83.6 R3.6 83.6 83.6

IF 12110 1 24.0 47.5 51.5 58.3 64. 67.7 72.8 78.8 81.5 84.4 86.0 46.1 86.2 86.2 86.2 86.2

6E 10001 24.0 47.5 51.8 58.8 b4.9 68.4 73.5 79.6 62.3 45.3 86.9 86.9 87.2 87.2 87.2 P7.26E QUO Z4.0 47.6 52.1 59.3 6S.4 6S.0 74.0 8 . 3 83.0 86.0 87.6 87.8 88.1 88.1 88.1 88.1(I P Oo 24.0 47.9 52.7 60.0 66.4 70.1 75.1 81.7 84.6 87.6 89.3 89.5 89.7 89.7 89.7 P9.7(E 70 1 14.2 48.7 5.9 60.4 67.4 71.1 76.4 83.0 86.0 89.0 9r.7 91.0 91.4 91.4 91.4 91.4

E 6001 24.2 48.0 53.1 60.5 67.6 71.5 76.8 84.0 87.1 90.7 924 92.8 93.4 93.4 93.4 93.4

LE 50E S Z4.2 48.0 53.1 60.8 68." 71. 9 77.2 84.4 87.5 91.2 93.4 94.0 94.7 94.7 94.7 94.7C[ 4001 24.2 48.2 53.2 61.0 68.3 72.2 77.5 84.8 88.1 91.9 94.1 94.8 95.4 95.9 95.9 95.9GE 7001 24.2 48.2 53.2 61.0 64.1 72.3 77.7 85.0 88.2 92.1 94.6 95.4 96.8 97.2 97.3 97.3G E ZOl 24.2 48.2 53.2 61.0 68.1 72.3 77.7 85.0 88.2 92.1 94.7 95.6 97.2 98.2 98.5 99.0bE I or 24.2 48.2 53.2 61.0 68. T 7.3 77.7 85.0 88.2 )2.1 94.7 95.6 97.2 98.3 98.9 100.0

bE 01 24.2 48.2 53.2 61.0 68.' 72.3 77.7 85.0 88.2 92.1 94.7 95.6 97.2 98.3 94.9 i00.0.....T. ... ... ... ...RT N ......... ........... ..... ... .... °. ... ...... .. ...... ... .. ...... .... .....

TOTAL NUMSR OF OR5LRVATIONS: 712

LOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE oF CEILIN VERSUS VISIBILITYUsAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMREP: 063250 STATION NAME: ZIERIKNZE NL PEIO OF PECORD: 78-87MONTH: MAF HOURSILSEI: 1430-1700

. ~ ... . . ... ° . o.. o. .. .... ... . . .o.. . ,. ................. o . ,.... ...... .... .... . .. ...... o.....,..o ... o. .......... ... °....

C ILING" VISIBILITY IN STATUTE MILES

IN .CE GE GE GE GE GE GE GE GE GE GL GE GE GE SE GEFEET 10 b 5 4 5 2 1/2 2 1 112 1 1/4 1 3/4 5/8 1/7 5/16 1/4 0

NO CEIL I 10.1 16.1 16.9 19.7 21.P 24.8 26.2 30.3 30.7 30.8 31.4 31.7 31.9 31.9 31.9 31.9

G 200001 13.2 22.3 23.4 26.9 29.6 33.3 34.7 39.0 39.3 39.6 41.2 40.6 40.7 40.7 40.7 45.7

,E 18000 1 1.2 22 3 23.4 26.9 29.5 T3.3 34.7 39.0 39.3 39.6 40.2 40.6 43.7 40.7 40.7 4L.7E 14000 I ,3 22.4 23.5 27.1 29.7 33.4 34.a 39. 2 39.5 39.8 4.4 40.7 43.9 40.9 40.9 40.9

UE 140O 13.6 23.4 24.5 28.0 30.7 34. 4 35.8 40.1 40.4 40.7 41.3 41.6 41.8 41.8 41.8 41.8GE 12301 14.4 24.8 25.4 29.4 32.J 35.9 37.3 42.0 42.4 42.7 43.3 43.3 43.8 43.8 43.8 43.8

'F 10J01 16.6 28.S 29.9 33.b 36.7 40.9 42.6 47.5 48.0 P8.3 49.1 44.4 49.S 49.5 49.5 49.5GE 9coo 16.9 29.6 31.0 34.7 37.4 42.0 43.7 48.8 49.2 49.7 59.5 50.8 50.9 50.9 50.9 50.9GE 1810 n 1.7. 9 31.0 32.4 36.4 43.4 44.6 46.4 S2.2 53.3 54.0 54.9 55.1 55.3 S5.3 54.3 S5.3

4f 70001 ".'C 31 1 3Z . 7 36.8 41.0 45.2 47.2 52.9 5.0 4,4.8 55.6 55.9 56.0 b.0 54.0 56.3bE bpoo 1I1 31.6 37.1 37.3 41.5 45.7 47.7 53.4 54.5 55.3 56.0 56.3 56.8 57.0 57. 0 47.0

E SO Ol 18.9 33.0 34.5 38.7 42.9 47.1 49.1 54.8 55.9 56.8 57.9 8.2 58.7 t8.8

58.8 5P.8

GE 453C$ 19.8 34.7 35.5 81.0 495.4 49.5 51.5 57.3 58.4 59.3 6).5 67.8 61.3 61.5 61.4 63.5GE 4000 21.8 38.2 4 .1 45.0 49.' 53.7 54.7 61.9 63.2 64,2 60.5 65.8 66.3 66.4 66.4 66.4(E 3500 23.4 40.7 47.0 48.1 52.6 57.0 59.0 64.2 66.6 67.6 68.9 69.2 69.7 69.8 69.8 69.8

S 3CO01 24.3 43.2 46.0 51.7 56.2 60.7 63.0 69.2 70.6 71.7 77.9 73.2 73.7 73.8 73.8 73.8

E 2E500 24.9 44.4 47.2 53.1 58.0 62.8 65.2 71.7 73.4 74.5 74.9 76.2 76.6 76.6 76.4 76.8uf 2 '0 U0 $ /5.9 46.3 489, 55.1 60.1 64.9 67.2 73.8 75.7 76.9 78.3 78.6 79.1 79.3 79.3 79.3GE IACOI 26.7 48.C 53.9 57.0 62.2 67. u 69.3 76.2 74.0 79.3 a.7 41.0 81.4 81.6 61.6 pI.6,E 300$ 27.7

50.

U 52.9 59.0 64.7 69.7 72.0 79.4 81.3 42.7 94.2 R4.5 85.0 P5.1 80.1 95.1

'4 120$ 27.9 50.8 54.0 63., 66.1 71.7 74.0 81.9 84.1 85.6 87.2 87.5 87.9 98.3 b . 6 8.I

GE 1I00 I 7.9 50., 54.0 60.2 66.7 72.3 74.9 83.0 84.3 87.( 8.7 49.U 89.5 99.6 89.6 99.F 9Uo 27.9 50.9 54.2 6.7 b7., 72.6 75.4 83.7 86.1 88.1 89.8 90.1 90.6 00.7 90.7 90.7

(E 900$ 29.0 51.1 54.5 61.0 67.' 73.2 76.2 84.7 87.0 89.8 97.0 92.3 92.7 92.9 92.9 92.,G E 00 28.0 51 .5 55.0 61.8 69.5 74.6 77.7 86.2 88.7 91.8 94.4 94.7 95.2 95.4 94.4 95.4

L T O0 28.0 '1. 55.3 62.2 69.2 75.2 78.3 87.0 69.8 93.0 94.7 96.0 96.4 96.6 96.6 96.6

uE 4301 R.0 51.5 $S,3 62.2 59.2 17.2 78.3 87.0 d9.8 93.5 95.1 96.4 96.9 97.1 97.1 97.1;,E 400$ 28.0 53.5 55.3 62.2 69.7 75.2 78.5 87.3 90.2 94.1 96.9 97.2 97.7 97.8 97.8 97.8' 3001 24.0 51.5 55.3 62.2 69.. 75.2 78.4 87.3 90.2 94.1 97.1 97.5 98.1 98.3 98.3 96.3

(E 200$ 29.0 51.5 55.3 62.2 69.2 75,Z 78.5 87.3 90.2 94.3 97.1 97.5 98.3 98.8 99.9 99.1F IuOI 28.0 "1.5 5.3 62.2 69.2 15.2 78.5 87.3 90.2 49.1 97.1 97.5 98.3 99.2 99.4 100.0

W. 0$ 28.0 51.5 55.3 62.2 69.2 75.Z 78.5 87.3 90.2 94.3 97. 97.5 98.3 99.2 99.8 3OG.0

TOTAL NUMPLR OF ORSERVATIONS: 646

ek-

(LOBAL CLIMATOLOGY BRANCH PEWCE41AGE FR- QUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFEIAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATI(ON NAME: ZIERIKZE- NL PEIOD OF RECORO: 78-87MONTH: MAR HOURSILSTI: 1800-2300

VEIN VI SI I*LIT Y**IN STATIUtE *MI LES ****,,**II*I**I**I*I- ** - * * - -IN I E GF 31E GE GE G- 6E GE GE GE GE GE GE GE GE GE

FEET I 10 f , 4 3 2 172 2 G 112 1 1/9 1 3/4 5/8 1/2 5/16 1/ 0

N3 CEIL 1 11.9 18.1 19.1 21.6 24.5 26.2 28.0 31.8 32.7 33.2 33.4 33.5 33.7 33.7 33.7 '4.1

bE 20000 15.6 24.2 25.6 28.4 31 . 33.8 35.8 39.9 40.7 41.9 42.4 42.7 47.9 42.9 42.9 43.3GE 181:0 15.6 24.2 25.6 28.4 31.5 33.8 35.8 39.9 4O.7 41.9 47 .4 42.7 42.9 42.9 42.9 43 * 3

GE 16r o0 15.6 24.2 25.6 28.4 31 .5 33.8 35.8 39.9 40.7 41.9 4'.4 42.7 42.9 42.9 42.9 43.3GE 14POOl 15.7 24.3 25.7 28.6 31.7 33.9 35.9 40.0 40.9 42.0 42.6 42.9 43.

0 43.0 43.0 43.4

GE 120001 16.1 25.5 26.9 29.7 33.1 35.4 37.3 41.4 42.3 43i4 44.0 44.3 44.4 44.4 44.4 44.8

rE 10900 1',. 31.3 33.2 36.5 400 42.6 44.6 48.8 49.8 51.1 51.6 52.1 52.3 52.3 57.3 52.8

GE 91:3 20.7 3.0 34.5 38.2 41.7 44.3 46.3 50. 51.5 52.8 3 5.3 S.7 54.0 54.0 54.0 55

bE 81001 21.6 34.1 35.1 39.9 43.q 46.8 49.2 53.7 54.9 56.6 57.4 57.9 58.1 58.1 58.1 S8.6GE 70001 21.6 34.4 36.4 40.2 44.3 47.4 49.8 54.3 55. 57.1 5q. S8.4 58.7 7 5 .7 59.16E 6COO 21.8 34.5 36.6 40.5 44 .5 47.7 50.1 54.7 55.9 57.6 Vsp4 54.8 59.1 59.1 59.1 59.5

bE SOO 22.6 I6.4 3R.5 42.4 46.4 50.1 52.5 57.4 58.8 60.7 6!.S 62.0 62.2 62.2 62. 2 62.7E 45001 23.6 37.5 39.6 43,6 47.9 51.3 53.7 58.7 60.1 62.0 67.8 63.2 63.5 63.5 63.5 63.9GE 4Cgo01 25.6 42.0 44.7 48.8 53.3 56.7 59.1 64.1 65.8 67.6 69.S 68.9 69.2 69.2 69.2 69.6

bE 3-001 26.3 44.4 47.Z 51.8 56.7 60.7 63.2 68.3 70.0 71.9 7?.7 73.1 73.4 73.4 73.4 73.8GE 3 O0 27.3 46.0 48.i 53.5 S8.4 62.4 65.1 70.6 72.4 74.3 75.1 75.5 75.8 75,8 75.8 76.2

61 2'I iC 27.6 47.4 53.2 55. Z 60.1 68.2 67.0 72.8 74.8 76.7 17.5 77.9 78.2 78.2 74.2 76.6LIE 2'OT 2q.6 48.8 51.9 56.7 61.4 66.1 68.9 74.8 76.8 78.6 79.5 79.9 80.2 80.2 80.2 80.6(, IE UO 29.9 49.4 52.6 57.7 62.9 67.2 70.0 76.0 77.9 79-8 8!.6 81.0 81.3 81.3 81.3 81.8

E I50 29.3 50. 4 .3 59.4 64.6 69.0 71.9 77.8 79.9 82.0 82.9 83.3 83.6 93.6 83.6 84.0

G I?o 29.8 '1.2 55.2 60.8 66.? 70.6 73.4 79.5 81.6 P3.7 84.7 P5.3 85.6 4S.b 85.6 86.0

LE 123o0 29.8 51.3 55.3 61.1 66.S 71.1 74.1 80.6 83.0 85.4 46.4 87.0 87.3 87.3 87.3 87.7b E Qgon 29.8 11.5 5S.4 61.2 66.9 71.6 74.8 81.5 84.0 86.6 87.7 88. 3 88.5 98.s 88.S 89.0

GE POOl 29.9 c11.6 55.7 61.6 67.L 72.3 75.7 82.3 85.1 87.7 8.1 89.7 90.0 90.1 90.1 96.5uE 7001 29.

8 Sl.b 55.9 62.4 68.6 73. 4 77.1 83.9 87.0 90.1 91.7 92.4 92.8 92.9 92.9 93.4

GE 001 29.8 51.9 56.2 62.8 69.C 74.3 78.2 85.4 89.1 92.5 94.2 94.9 95.3 95.5 95.5 95.9

bE SUOl 29.9 51.9 S552 63.1 6.,6 74.8 78.9 86.1 90.1 93.8 95.5 96.6 97.0 97.2 97.2 97.6GE 400 29.8 51.9 56.2 63.2 69.7 75.0 79.1 86.3 90.2 9j.9 95.6 96.9 97.3 97.5 97.5 97.9GF 3GO 29.8 51.9 55.2 63.2 69.7 75.0 79.1 86.3 90.2 94.2 96.0 97.7 98.2 98.4 99.4 98.9bE 250 29.8 51.9 56.2 63.2 69.7 75.0 79.1 86.3 90.2 94.2 96.0 97.7 98.2 98.6 9R.6 99.2

GE 1001 29.8 S1.9 56.2 63.4 69.9 75.1 79.2 86.4 90.4 94.3 96.2 97.9 98.3 98.9 98.9 99.9

E 01 29.8 51.9 55.2 63.4 69.9 75.1 79.2 86.4 90.4 94.3 96.2 97.9 98.3 98.9 98.9 100.0


*J-

] bLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USATEAC FROM HOURLY OSSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063Z50 STATION NAME: ZI[RIKZE NL PERIOD OF RECORD: 78Bor-87

MONTH! MAR HOURS(LSTI): 2100-2300

CEILING VISIBILITY IN STATUTE MILESIN I GE Gr IC GE GE GE GE GE GL GE 'E GE GE GE GE G[

FEET I 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0

.........................................................................................................................................

NO CEIL I 12.7 20.8 22.5 25.U 29.6 31.3 33.5 37.3 38.1 38.2 3R.2 38.2 38.2 38.2 38.2 38.4

GE 200001 15.4 25.2 27.4 30.3 35.5 37. 4 39.8 43.9 44 .8 45.1 45.3 45.6 45.6 45.6 45.6 45.8GE 18V0o I 15. q 25.2 27.4 3C.3 35.5 37.4 39.8 43.9 44.8 45.1 45.3 45.6 45.6 45.b 45.6 45.3GE 160001 15.4 25.2 27.4 30.3 35.5 37.4 39.8 43.9 44.8 45.1 45.3 45.6 45.6 45.6 45.6 45.8GE 140001 15.4 25.2 27.4 30.3 35.5 37.4 39.8 43.9 44.8 45.1 45.3 45.6 45.6 45.6 45.6 45.8GE 120001 15.9 25.9 2,.1 31.3 36.6 38.7 41.2 45.6 46.5 46.9 47.0 47.3 47.3 47.3 47.3 47.5

GE 100001 10.5 28.3 39.5 34.1 39.8 41.8 44.3 48.9 49.8 50.k 50.3 50.6 50.6 50.6 50.6 50.8GE 9COI 17.6 30.0 32.2 35.8 41.5 43.6 46.1 50.6 51.6 51.9 5 2.l 52.4 52.4 52.4 52.4 52.5GE 80001 17.6 31.3 33.5 37.4 43.2 45.4 48.3 52.8 53.8 54.2 54.4 54.7 54.7 54.7 54.7 54.9', E 7ol0 17.6 31.6 33.8 37.7 43.9 46.1 4B.9 53.5 54.4 54.9 55.0 54.3 55.3 55.3 55.3 55.5GE 60001 17.6 31.8 34.1 38.1 44.2 46.4 49.2 53.8 54.7 5S.2 55; 5..7 55.7 55.7 55.7 5.8

6E 5UO 17.6 32.1 34.4 38.5 44.7 4b.9 49.7 54.6 55.5 56.0 56.1 56.4 56.4 56.4 46.4 56.6bE 450U 18.9 34.1 36.5 40.6 46.7 48.9 51.7 56.6 57.5 58.0 54.2 58.5 58.5 58.5 59.5 58.6

GE 4Conl 20.8 39.8 42.6 47.3 53.5 Sb.1 59.0 63.8 64.9 65.9 66.2 66.5 66.5 66.5 66.5 66.7GE 300 1 22.0 41.8 44.8 49.8 56.1 59.1 62.1 67.3 68.4 69.5 63.9 70.1 70.1 70.1 73.1 70.3GE 30001 22.8 43.6 43.5 51.7 5".3 61.5 64.5 70.0 71.2 72.5 77.8 73.1 73.1 73.1 73.1 73.3

GE 2501 2 3.n 46.4 49.5 54.9 61.S 64.6 67.6 73.1 14.4 75.6 75.9 76.3 76.3 76.3 76.3 76.4,E 20Co1 23.1 47.3 53.6 56.3 63.1 66.2 69.2 75.2 76.4 77.7 79.7 78.3 78.3 78.3 79.3 78.5

UE 1001 23.4 48.4 52.4 58.2 64.9 68. 1 71.1 77.0 78.3 79.6 70.9 80.2 80.2 80.2 60.2 80.3GE 1'001 23.7 50.3 54.6 60.5 67.3 7C.4 73.6 79.6 81.0 R2.2 82.5 82.9 82.9 92.9 82.9 83.0GE 12UOI 23.9 50.8 55.2 61.6 68.7 72.0 75.2 81.4 82.9 94.1 84.4 84.7 84.7 94.7 84.7 84.9

,E Ir301 24.1 50.9 55.5 61.9 69.2 72.5 75.9 82.7 84.3 85.5 a59. A6.2 86.? 86.2 86.2 96.3bE 9001 24.1 50.9 55.5 62.1 69.5 73.U 76.4 83.3 84.9 86.- 86.5 96.9 86.8 A6.8 86.8 86.9

uE eOC I 24.4 51.9 56.8 64.0 71.5 75. U 7.6 85.7 87.3 A8.5 89 . 89.2 89.2 89.2 89.2 89.3GE 7001 24.4 52.0 56.9 64.5 72.5 76.4 80.0 87. 4 89.2 90.7 91.0 91.4 91.4 Q1.4 91.4 91.5GE 60 24.4 52.U 56.9 64.4 73.0 76.9 80.7 88.2 90.4 92.1 92.6 93.1 93.1 93.1 93.1 93.2

GE 5001 24.4 52.0 56.9 64.8 73.6 77.5 81.3 89.0 91.4 93.4 94.2 94.7 94.7 94.8 94.9 95.0GE 4001 24.4 52.0 56.9 64.9 73.0 79.3 82.2 90.1 92.6 94.7

95.4 95.9 95.9 96.1 96.1 96.2

UE 3001 24.4 52.0 56.9 64.9 73.9 78.5 82.4 90.4 92.9 95.1 95.9 96.4 96.4 06.7 96.7 97.UII 2U1 24.4 52.0 56.9 64.9 73.9 78.5 82.4 90.4 92.9 95.3 96.1 96.5 96.5 96.9 96.9 97.5GE I00l 24.4 52.0 56.9 64.9 73.9 78.5 82.4 90.4 92.9 95.3 96.1 96.5 96.5 96.9 96.9 99.5

UE 01 24.4 52.0 55.9 64.9 73.9 78.5 82.4 90.4 92.9 95.3 96.1 96.5 96.5 Q6.9 96.9 100.0

TOTAL NUMBER OF O9SERVATIONS: 636

( . - -- ,mlll i m W mll mlml m m m mmm m m

GLOBAL CLIMATOLOGY BRANCH PERCENTAGr FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILIIYUsAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: U63250 STATION NAME: ZIERIKZEr NL PERIOD OF VECORD: 78-87

MONTH: MAE HOURS[LSI): ALL

CE"ILING'VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE OC GE GE GE GE GE GE GE GE GE GE

FEET I 10 G 5 4 3 2 1/2 2 1 1/2 1 1/4 1 39/4 5/6 1/2 5/16 1/4 U

NO CEIL I 11.2 17.1 18.7 21.3 24.9 26.2 27.8 31.0 31.9 32.9 3!.3 33.6 33.8 33.9 34.0 34.5

GE 20C00 12. 1 21.0 22.9 25.9 29.5 31.6 33.5 37.0 38.0 39.2 39.7 40.1 40.4 40.5 40.6 41.1GE 180UC 12.2 21.2 23.0 26.1 29.7 31.8 33.7 37.3 38.2 39.4 39.9 40.3 40.6 40.7 40.9 43.3uE 160001 12.3 21.3 23.1 26.1 29.7 31.8 33.7 37.3 38.2 39.4 39.9 40.3 40.6 40.8 40.9 41.3GE 14COO 12.4 21.5 23.3 26.3 29.9 32.1 34.0 37.5 38.4 39.7 40.1 40.5 40.8 41.0 41.1 41.5GE IZCOOI 12.7 22.2 24.1 27.1 30.9 33,

O 34.9 38.5 39.5 40.7 41.2 41.6 41.9 42.1 42.2 42.6

GE 10000 13.8 25.? 27.3 30.8 34. 9 37.3 39.3 43.1 44.1 45.4 45.9 46.3 46.6 46.8 46.9 47.3GE 9GU(O 14.4 26.3 28.5 32.2 36.3 38.7 40.7 44.6 45.6 46.9 47.4 97.8 49.2 48.3 48.4 48.8UE 8ro1 14.9 27.4 29.6 33.7 38.1 40.7 42.9 46.9 48.1 49.5 50.1 SO.5 50.9 51.0 51.1 S1.5GE 700 15.0 27.7 29.9 34.0 38.6 41.2 43.4 47.4 48.6 50.0 5r.6 51.0 51.3 51.5 51.6 52.UGE 60001 15.1 28.0 33.2 34.4 39.0 41.6 43.8 47.9 49.1 50.6 51.2 51.6 52.0 52.2 52.3 52.7

GE 50001 157 29.4 31.7 36.0 40.7 43.5 45.7 50.1 51.5 53.0 53.6 54.0 54.4 547 54.8 55.26E 4-001 16.5 30.9 33.4 37.8 92,7 45.5 47.8 52.3 53.7 55.3 56.0 56.5 56.9 57.2 57. 3 57.7GE 4'o0J 8.0 34.5 37.4 42.3 47.4 50.4 52.8 57.4 58.9 60.7 61.6 62.0 62.4 62.7 62.8 63.2GF 3.G0I 19.1 36.8 39.9 45.1 50.9 53.6 S6.1 60.8 62.4 64.2 69.1 65.5 65.9 6b.2 66.3 66.8L.! 30001 19. 8 38.9 42.3 47.8 53.3 56.7 59.3 64.4 66.0 67.9 6A.8 69.3 69.7 70.0 70.2 70.6

UE 25001 20.5 41.0 44.5 50.3 56.0 59.6 62.3 67.6 69.3 71.2 7'.2 72.8 73.2 73.6 73.7 74.1GE PJ01 21.1 42.6 46.3 52.3 58.2 62.0 64.7 70.2 71.9 73.9 74.9 75.5 75.9 76.2 76.4 76.8,E 19ol 21.5 43.7 47.7 53.0 59.' 63.6 66.4 71.9 73.7 75.7 76.7 77.3 77.7 78.0 78.1 78.6

GfE 1500 22.1 45.2 49.5 55.8 62.3 66. 3 68.9 74.7 76.5 78.6 7q.7 90.3 83.8 81.1 81.2 81.6CE 32 00 22.5 4b6.1 5.7 57.4 64.) 68.1 71.1 77.0 79.0 811 87.3 82.9 83.3 83.7 83.6 84.2

GE 10 22.6 46.2 5.9 57.8 64.6 68.7 71.8 78.0 80.0 82.2 83.5 84.1 84.5 84.9 85.0 85.4GE 9001 27.6 4b.3 51.2 58.2 6S.1 69.3 72.5 78.8 80.9 83.2 84.5 95.2 85.6 8S.9 66.1 86.5uE 9001 22.6 46.7 51.8 59.2 66.? 70.5 73.9 80.4 82.5 Fs.1 36.5 97.1 87.7 88.1 88.2 86.7(E 7001 22.6 46.9 52.1 59.8 67.3 71.7 75.2 82.0 84.3 97.1 89.7 P9.S 90.0 90.4 90.5 90.96E 6001 22.6 47.C 52.3 60.1 67.7 72.3 76.0 83.1 85.7 B.8 9.4 q1 . 3 91.8 92.3 97.4 92.8

GE 5001 22.6 47.0 52.3 60.2 6R.n

72.7 76.4 83.7 86.4 89.7 91.6 Q2.6 93.1 93.6 93.7 94.2GE 401 22.6 47.U 52.3 60.3 68.2 73.0 76.8 84.3 87.1 90.5 92.5 93.6 94.2 94.7 94.8 95.3GE '001 22.6 47.0 52.3 60.3 68.2 73.1 76.8 84.4 87.2 90.7 92.A 94.0 94.8 95.5 95.7 96.2GE .O1 22.6 47.0 52.3 60.3 68.2 73.1 76.8 84.4 87.3 90.9 93.0 94.Z 95.0 96.2 96.5 97.6GIE tO 22. t 47.0 57.3 60.3 68. A 73.1 76.9 84.5 87.4 91.0 90.1 94 .3 95.1 96.5 96.8 99.4

GE 01 22.6 47.0 52.3 60.3 68.3 73.1 76.9 84.5 87.4 91.0 93.1 94.3 95.1 96.5 96.8 100.0

TOTAL NUMBLR OF OBSERVATIONS: 5307

* .

GLOBAL CLIMATOLOGY BRANCH PERCENTAGF FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: C63250 STATION NAME: ZIERIKZE: NL PETIOD OF RECORD: 80-87MONTH: APR HOURSILSTI: 0000-0200

CEILING VISIBILITY IN STATUTE MLSIN I GE BE GE 6E GE GE GE GE GE GE GE GE GE GE GE GE

FEET I 10 6 5 3 1 2 l/2 2 1 112 1 1/4 1 3/4 3/8 112 5/16 I/4 0

.... ....................................................................................................................

NO CEIL I 2t.7 36.6 39.1 43.1 0.3 45.8 46.0 47.2 47.2 47.2 NT.7 47.2 47.2 47.2 47.4 47.6

GE 2UO00l 22.7 38.9 42.4 47.0 48.& 49.9 50.0 51.4

51.6 51.7 51.1 N1.7 51.7 51.7 51.9 52.1GE 180001 22.7 39.1 42.5 47.2 48.4 50.0 50.2 51.6 51.7 51.9 51.9 51.9 51.9 51.9 52.1 52.3GE 160001 22.7 39.1 42.5 47.2 48.q 50.0 50.2 51.6 51.7 S1.9 51.9 51.9 51.9 51.9 52.1 52.3GiE 140001 22.9 39.2 42.7 7.4 48.6 50.2 50.3 51.7 51.9 52.1 5?.I 52.1 52.1 52.1 52.3 S2.4GE 12000| 23.1 39.8 43.2 47.9 49.1 50.7 50.9 52.3 52.4 52.6 52.6 52.6 52.6 52.6 52.8 53.0

GE 100001 24.0 42.U 45.8 50.9 52.6 54. 2 54.5 55.9 56.1 56.3 56.3 56.3 56.3 56.3 56.4 56.6GE 9Troo 24.0 43.2 47.2 52.3 54.2 55.7 56.1 57.5 57.6 57.8 57.8 57.8 57.8 57.8 58.0 58.2GE 80001 24.1 09.3 48.3 53.6 55.7 57.6 58.0 59.4 59.5 59.7 59.7 59.7 S9.7 59.7 59.9 60.1GE 70001 24.1 44.4 4S.4 S3.8 5S.9 57.8 58.2 59.5 59.7 59.9 59.9 59.9 59.9 59.9 60.1 60.2GE 60001 24.3 44.6 44.6 54.0 56.3 58.2 58.5 60. 1 60.2 60.4 60.4 60.4 60.4 60.4 63.6 60.8

LE SCoo 24.7 46.4 43.3 55.9 58.T 60.4 60.8 62.3 62.5 62.7 62.7 62.7 62.7 62.7 67.8 63.GGE 45UOi 25.5 47.7 51.7 57.5 59.9 62.0 62.3 64.1 64.2 64.4 64.4 64.4 64.4 64.4 64.6 64.8GE "Coa0 28.1 53.1 57.3 63.? 66.7 69.4 69.8 71.9 72.2 72.4 77.4 7Z.4 72.4 72.4 72.6 72.7GF 35001 29.0 55.7 63.4 67.5 70.4 73.6 74.0 76.0 76.4 76.6 76.6 76.6 76.6 76.6 76.7 76.9GE 30001 30.6 58.5 63.7 71.2 74R 78.5 78.8 80.9 61.3 41.4 81.4 A1.4 81.4 41.4 61.6 91.8

GE 2U01 31.8 60.8 66.0 73.4 77.4 81.1 81.8 84.0 84.5 84.7 .4.7 84.7 84.7 84.7 84.9 85.1G E ZV00 32.3 61.6 66-8 74.3 7q.3 41.9 82.6 84.9 85.4 85.8 85.4 85.8 b4.8 85.8 85.9 86.1bE 18O1 32.6 62.3 b7.9 75.7 79.7 83.5 84.2 86.5 87.0 P7.3 87.3 R7.3 87.3 87.3 87.5 87.7GE 15001 32.8 62.7 b9.4 76.7 80.7 84.5 85.2 87.8 88.4 88.9 89 8.9 88.9 98.9 89.1 89.2GE 12001 33.0 64.1 73.0 78.3 82.3 86.1 86.8 89.41 89.9 90.5 91.5 90.5 90.5 90.5 90.6 90.8

GE 1073 I 33.2 65.3 71.4 79. 7 83.7 87.5 88.4 91. 1 91.7 92.2 92.2 92.2 92.2 92.2 92.4 92.5GE 901 33.2 65.3 71.4 79.9 83.9 87.7 88.7 91.7 92.2 92.7 92.7 92.7 92.7 92.7 92.9 93.1GE F001 33.2 65.5 71.9 80.7 85.2 89.2 90.3 93.4 93.9 94.4 94.4 94.4 94.4 94.4 94.6 94.8GE 7001 33.2 65.5 72.0 80.9 85.4 69.8 90.8 94.b 95.3 994. 45.8 9.8 95.8 95.8 96.0 96.2GE GCO0 33.2 65.5 72.? 81.1 85.6 89.9 91.1 95.0 95.8 96.4 96.4 96.4 96.4 06.4 96.5 96.7

GE 5001 33.2 65.5 7,,.6 81.4 85.9 90.5 91.7 95.8 96.9 97.6 97.6 97.b 97.6 07.6 97.7 47.9GE 4U01 33.2 65.5 12.6 81.6 86.1 90.6 91.8 96.2 97.2 97.9 97.9 97.9 97.9 97.9 94.1 98.1GE 3001 33.2 65.5 7'6 81.6 86.1 90.6 91.A 96.2 97.7 99.6 98.6 98.6 98.6 98.6 94.8 99.0GE 2001 33.2 65. 72.6 81.6 86.1 90.6 91.8 96.2 97.7 98.8 99.0 99.0 99.0 99.3 99.5 99.1rE 1001 33.2 F .5 7?.6 81.6 86.1 90.6 91.8 96.2 97.7 98.8 99.1 99.1 99.1 49.1 99.8 100.0

GE cI 33.2 65.5 72.6 81.6 86.1 90.6 91.8 96.2 97.7 99.8 99.1 99.1 99.1 99.7 99.8 100.0.. .. . .. . . . . . . . . . . .. . . . . . . . . ........................ ................................... . ,.,. ......

TOTAL NUMRFR OF OBSERVATIONS: 576

k-.

GLOA CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATIfN NAME: ZIERKZEE NL PLIOD OF PECORD: 80-AT

ONTH: APR MOURSILSTI: 0300-0500

CEILING VISIBILITY IN STATUTE MILES1N I GE GE GE GE GE GE GE GE GE GE GL GE GE GE GE GE

FEET I 10 6 5 4 3 2 1 2 2 1 1f2 I 1/4 1 3/4 5/8 1/2 5/16 1/4 0. ... . . . . . . . .. . . . . . . .. . ..*. .. . . . . .................°..°....................... ' o . l . . . .... .. . .

NO CEIL 1 16.0 30.8 33.9 37.7 39.; 41.2 41.2 42.8 43.4 44.1 44.1 49.1 44.4 44.q 44.6 455

GE 2C0OI 17.1 33.3 36.6 40.6 42.4 44.1 44.1 45.7 46.4 97.2 47.2 47.2 47.5 47.5 47.7 4e.6E 181001 17.1 33.3 36.6 40.6 42.4 94.1 44.1 97 96.4 97.2 47.2 47.2 47.5 97.5 47.7 48.6GE 160001 17.1 33.3 36.6 40.6 42.4 49.1 44.1 45.7 46.4 47.2 47.2 47.Z 47.5 47.5 97.7 91.6GE 14CO00 17.1 33.3 36.6 40.6 92.4 49.1 44.1 45.7 96.4 47.2 47.2 47.2 47.5 97.5 47.7 96.6GE IZ EOOI 17.3 33.9 37.3 41.3 3. ? 44.8 44.8 96.4 97.2 47.9 47.9 47.9 98.3 48.3 4.5 99.4

[,E 100001 18.0 36.1 39.9 44.1 96.1 47.9 47.9 99.9 1O.6 51.4 51.4 51.9 51.7 51.7 51.9 52.86E 90001 18.0 37.0 91.3 41,9 97. 49.7 99.T 51.7 52.5 53.2 517.2 53.2 53.6 53.6 53.7 59.6GE 8001 1?.7 38.1 4 70 99. 8 so.8 52.8 13.7 9.5 54.5 19.5 54.8 59.8 55.0 55.qGE 71100 I1.2 38.1 92.4 97.2 49. 51.0 11.0 13.0 13.9 14.6 14.6 14.6 55.0 1.0 SS.2 56.1GE 61001 18.4 34.3 42.6 7.9 4994 1.2 51.4 53.6 19.5 S52 55.2 12 55.2 15.6 11.6 5%.7 S6.6

rE 5s0o0 19.1 40.1 44.9 49.2 51.4 53.2 53.1 55.6 56.5 57.2 57.2 57.2 57.6 57.6 57.7 58.7

GE 1001 19.9 92.3 47.0 51.7 53.q 55.7 55.9 58.1 59.0 59.7 59.7 59.7 60.1 60.1 60. 61.2GE 4C0OI 22.0 46.9 52.3 51.9 59.6 61.4 61.7 89.3 65.2 66.1 66.1 66.1 66.5 66.5 66.7 67b.GE 35001 23.1 98.6 59.6 60.1 62., 69.7 65.0 67.6 68.9 69.9 69.9 69.9 70.3 70.3 70.5 71.4

GE 300 2S.5 51.9 57.9 64.3 67. 69.9 69.8 72. 73.6 74.7 74.7 74.7 75.0 75.0 75.2 76.1

tE 25001 26.4 53.6 59.7 66.3 69.4 71.6 71.9 79.5 75.8 76.9 76.9 7b.9 77.2 77.2 77.9 7b.3UE 20U01 27. 1 59.8 61.6 68.3 71.6 74.0 74.3 77.0 78.3 79.4 79.4 79.9 79.8 79.8 87.0 80.9GE I80 1 27.1 55.9 62.3 69.0 72. 74.7 75.0 77.8 79.1 90.1 80.1 40.1 80.5 40.S 81.7 81.8GE 11001 27.3 16.3 63.9 70.3 ?4.1 76.1 76.9 79.8 81.1 92.1 82.3 82.1 82.5 42.5 82.7 83.6

GE 12001 27.3 14.3 6S. 72.9 77.0 77.9 79.8 82.7 89.0 95. 4S. I 1.1 85.9 81.9 81.6 46.1

bE 10001 27.3 5,9.4 67.2 79.5 78-9 41.6 82.0 85.1 86.3 87.4 87.4 R7. 87.8 87.8 A9.0 88.9GE 9001 27.3 59.6 67.6 715. 80.1 R3.1 83.6 86.9 84.3 49.6 g9.6 89.6 90.0 90.0 90.2 91.1

GE A4011 27.3 59.7 6.8 TS.8 8.1 89,.0 89.5 88.0 89. 90.7 90.7 90.1 91.1 91.1 91.3 92.2(I6 7001 27.3 60.2 68.1 76.3 81. 84.9 81.9 89.6 91.1 : 2 : 3 97.3 92.3 92.? 92.7 92.9 93.8bE 601 27.0 60.1 65.3 76.1 41.0 45.9 86.2 90.3 91.8 93.1 91,1 93.1 93.9 93.9 93.6 94.1

GE UO1 27.3 60.1 68.3 T6.5 81. 85-6 86.7 91.6 93.3 94.7 9.1 91.1 95.9 95.4 95.6 96.5GE 4001 27.3 60.1 68.3 76. 8

2.p 86.0 87.2 92.5 94.4 95.8 96.2 96.2 96.5 96.5 96.7 97.6

GE 3001 27.3 60.1 69.3 76.5 42.0 46.0 87.2 92.5 94.5 96.0 96.4 96.5 96.9 9b.9 97.1 98.0GE 2001 27.3 60.1 b.3 76.1 82.0 86.0 87.2 92.9 95.1 96.5 q6.9 97.1 97.9 97.6 98.0 98.9GE 1001 27.3 60.1 64.3 76.5 82.1 96.0 87.2 92.9 9S.1 * 96.5 96.9 97.1 97.6 98.0 94.9 100.0

GE r7 I7.3 60.1 68.3 76.5 62.1 ti 6.0 07.2 92.9 95.1 96.5 96.9 97.1 97.6 98.0 98.4 100.0

TOTAL NUMBER OF OBSERVAIIONS: 199

LUJ

GLOBAL CLIMATOLOGY BRANCH PERCENTAGF FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 STAT ON NAME: ZIERIK ?E NL PERIOD OF RECORD: 78-87MONTH: APR HOURSILSTI: 0600-0800

CEIL1NGVSIIIYISTTTMLE

IN I GE GE GE GE GE GE GE GE Gr GE GL GE GC GE GE GE

FEET I 10 6 5 4 T 2 1f2 2 1 112 1 1/4 1 3/4 58 112 5/16 1/4 0

NO CEIL I 11.9 22.4 24.0 26.9 29.. 30.6 31.7 32.9 33.7 75.7 36.1 36.4 36.5 36.7 36.7 37.5

bE 2G0001 13.1 25.6 28.2 32.7 35.4 37.7 39.1 40.7 41.7 43.8 44.2 44.4 44.6 44.7 44.7 45.5bE 18000 13.3 25.8 28.4 32.9 35.6 37.8 39.3 40.9 41.8 43.9 44.2 44.6 44.7 44.9 44.9 45.7bE 160001 13.3 75.8 28.4 32.9 35.6 37.8 39.3 40.9 41.8 43.9 4% .2 44.6 44.7 44.9 44.9 45.7GE 14c001 13. 3 25.8 28.4 32.9 35.6 37.8 39.3 43.9 41.8 43.9 44.2 44.6 44.7 44.9 44.9 45.7GE 120001 13.8 2b.b 29.2 33.7 36.5 38.8 40.5 42.3 43.3 45.4 45.7 46.0 46.2 46.3 46.3 47.1

GE 100001 14.7 28.7 31.3 36.5 39.7 42.0 43.8 45.8 46.8 49.0 49.4 49.7 49.8 50.0 50.0 50.8GE 9GO01 15.2 30.3 32.9 38.b 42.0 44.4 46.2 48.2 49.2 5l.4 51.4 52 . 1 52.2 52.4 52.4 53.2GE stoo 15.5 31.4 34.3 40.4 43.9 46.3 48.1 50.2 51.3 53.5 54.a 54.3 54.5 54.6 64.6 55.4.E 7rOOl 15.9 33.9 34.A 41.0 44.7 47.1 48.9 61.1 52.1 54.5 51;. 55.3 55.4 55.6 55.6 56.4E 6. or I15.9 31.9 34.8 41-0 44.7 47.3 49.0 51.4 52.4 54.8 55.3 55.6 55.8 55.9 55.9 56.7

G E 5CO01 16.0 33.0 36.1 42.8 46.5 49.2 51.1 53-5 54.6 57.2 57.7 58.0 58.3 58.7 54.7 59.5GE 45001 16.5 34.6 37.8 44.9 48.6 51.4 53.4 56.1 57.2 59.8 61.3 60.6 60.9 61.2 61.2 62.0GE 40001 17.9 38.3 41.7 49.0 52.7 55.6 57.5 60.4 61.5 64.1 64.6 64.9 65.2 65.5 6S.5 66.3G E 35JO 18.9 40.2 43.6 51.1 55.7 58.7 60.7 63.8 b4.9 67.5 67.9 68.6 68.9 69.2 69.2 70.06E 30 00 20.2 42.3 45.8 53.5 57.7 61.2 63.5 66.7 67.8 70.4 70.8 71.5 71.4 72.1 72.1 72.9

GE 2'OO1 21.3 44.9 48.9 56.9 61.1 64.7 67.0 70.4 71.5 74.2 74.7 75.3 75.6 76.0 76.0 76.8GE 2CO1 22.1 46.2 53.5 58.8 63.1 66.8 69.1 72.4 73.6 76.3 76.8 77.4 77.7 78.0 78.0 76.8bE IUO1 23.1 47.8 57.4 60.9 65.2 69.1 72.3 74.7 75.8 78.5 79.3 79.6 80.0 80.3 80.3 81.1

GE 15031 23.6 48.7 53.7 62.5 67.4 71.3 73.7 77.2 78.5 41.3 81.9 82.5 83.0 13.3 8T.3 94.1G E 12U71 24.8 50.6 55.9 65.1 70.7 74.7 77.1 81.1 82.4 8S,1 85.9 86.5 87.Z 87.5 67.5 88.3

GE 10011 24.A 51.1 56.4 65.5 70.8 75.3 77.7 81.7 83.0 85.7 86.7 87.3 84.0 48.3 8A.3 89.1GE 9001 24.8 51.1 5 .4 65.7 71.7 75.6 78.2 82.2 83.5 46.5 87.5 88.1 88.8 89.1 89.1 89.9GE 801 4.8 51.1 56.4 65.9 72.0 76.6 79.3 83. 84.8 88.0 89.1 90.1 90.7 91.3 91.0 91.8GE 7oo 24.8 51.1 55.6 66.0 72.1 77.1 79.8 84.0 85.3 48.6 89.9 91.0 92.0 92.3 92.3 93.1

GE 6G01 24.8 51.1 56.7 66.2 72.6 77.6 80.3 84.5 86.2 49.7 91.0 92.3 93.0 93.6 92.6 94.4

GE 'UOi 24.8 51.1 56.7 66.2 72.6 77.6 80.4 85.4 87.3 91.2 97.s 94.3 95.2 95.5 95.5 56.3

GE 4001 24.8 ,1 . 1 56.9 6b.3 72.S 77.7 80.6 85.7 87.7 92.1 93.6 95.4 96.5 96.8 96.8 97.b41 3001 24.8 51.1 5 6.9 66.3 72.R 77.7 80.6 85.7 87.7 2.1 93.6 95.4 96.5 97.0 97.0 97.8GE 2001 24.8 51.1 56.9 66.3 72.9 77.9 80.8 85.9 87.8 92.3 93.1 95.5 97.1 97.9 97.9 98.9

E 1001 24.8 51. 1 56.9 66.3 72.8 77.9 80.8 85.9 87.8 92.3 92.8 95.5 97.1 98.6 98.6 100.0

GE 2, 14.4 S1.1 56.9 66.3 72.A 77.9 80.8 85.9 87.8 92.3 99.8 95.5 97.1 98.6 98.6 17o.0


-91

GLUOAL CLIMATOLOGY 3RANCH PEkCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USAFETAC FROM HOURLY OBSERVATIONSAIR wEATHER SERVICE/MAC

STATION'NUMBER: 063250 STATION NAME: ZI[RIKCEr NL PEqIOG OF RECORD: 78-87

MONTH: APR HOURSILS I: 0900-1100

CEILING VISIBILITY IN STATUTE MILES

IN G GE GE GE GE GE GE GE GE GE GE GE GE GE GE GL GE

FEET 10 6 5 4 5 e 1/2 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 I/4 0

...............................................................................................................................................

C NO CEIL 13.0 22.9 24.9 28.2 31.5 33.0 33.7 35.0 35.3 35.6 3.8 35.A 3b.0 36.0 3b.0 36,0

UE coOoO 15.5 27.4 33.2 35.3 39.3 1. 6 53.1 55.7 55.4 45.7 56.2 56.2 56.5 56.5 56.5 56.5

GE 180 00i 16. 28.1 33.9 35.0 39.9 42.2 53.7 5.5 46.2 6.5 57.0 47.0 57.2 57.2 57.2 NT.2

GE 160001 16.0 28.1 33.9 35,0 39.9 52.2 53.7 55.5 56.2 46.5 47.0 *7.0 47.2 87.2 57.2 57.2

GE INOOO|I 16.3 28.5 31 . 35.5 4O.4 42.7 5,2 56.0 46.7 97,C 47.5 47.5 47.7 57.7 47.7 7.7

GE 12000 I 16.5 28.9 31.7 35.8 50.3 53.2 55.2 N7.2 57.9 N8.2 N.7 N8. 7 58.8 58.8 58.8 48.8

(,E 100001 17.5 31.N 3N .8 39

.b NN. 7 57.0 59.3 51.5 52.3 52.6 53.1 53.1 53.3 53.3 53.3 53.3

GE 9OO1 18.2 32.6 36.1 51.3 57. 549.5 sZ.0 51.1 55.0 55.3 55.8 55.8 55.9 55.9 55.9 55.9

GE 80001 18.6 33.8 37.8 53.9 50.2 52.5 55.1 57.3 5A.4 58-9 59.4 59. 59.6 59.6 59.6 59.6

GE 7O0| 18.6 35.2 18.3 55.6 50.8 53.5 56.3 58. 59.6 60.1 60.6 60.6 60.7 60.7 60.7 60.7

6E GO0D 18.6 35.2 39.3 55.7 51.3 53.8 56.6 58.9 60.1 60.6 61.1 61.1 61.2 61.2 61.2 61.2

GE sOO 19.5 3 .3 39.9 56.5 53.' 56.6 59.6 62.0 63.2 63.7 65.2 65.2 65.5 65 .54 65 65.5

GE 4500 20.6 37.U 51.9 58.7 55.9 59. 62.5 65.0 b62 66.7 67.2 67.2 67.3 673 67.3 67.3

GE 40001 22.9 50.3 55.5 52.3 59.9 63.5 66.7 69.1 70.5 71.c 71.5 71.5 71.6 71.6 71.6 71.6

GE 35001 28.3 42.4 57.7 55.6 62.7 66.2 69.6 72.1 73.5 73.9 75.5 75.5 75.6 75.6 75.6 7.6

GE 30001 25.6 45.4 53.7 57.6 65.8 69.5 72.9 75.6 76.9 77.5 77.9 717.9 78 . 78.1 78.1 78.1

GE 25ooJ 27.6 58,7 54.1 61.6 70.0 73.8 77 " 80.0 81.5 81.8 87.3 82.3 82.5 82.5 87.5 82.6GE 20001 28.1 59.7 55.9 63.5 72.3 76.1 79.9 82.5 83.8 8.3 85 R a 88 85.0 86.0 85.0 85.0

fE 100D 28.2 0. 2 56.6 65.5 73.1 76.9 80.7 83.5 85.8 95.3 8.8a 85.8 86.0 86.0 86.0 86.3

UE 15001 29.0 1.5 58.1 65.8 79.9 78.9 82.7 85.8 87.1 87.6 88.1 88.1 88.3 88.3 88.3 p8.3

GE IZOO1 29.9 53.0 59.6 67-8 77.1 5i.4 85.1 88.6 89.9 90.4 90.9 90.9 91.3 91.3 91.3 91.3

GE 10001 29.9 53.0 59.9 68.2 71.4 82.0 85.8 89.6 90.9 91.5 93.9 91.9 92.5 92.4 92.5 92.5

GE 9001 29.9 53.0 59.9 68.2 77.6 82.2 86.1 90.3 91.6 92.1 97.7 92.9 93.4 93.4 93.5 93.5

GE pool 29.9 53.1 63.1 68.5 77.9 82.5 86.5 90.9 92.2 92.7 93.5 93.7 95.2 94.2 94.2 55.2

GE 7001 29.9 53.1 60.1 68.5 77.9 Z. 7 86.6 91.3 92.7 93.4 95.2 94.6 95.7 95.7 95.7 95.7

6E 6001 29.9 53.1 60.1 68.6 78.5 83.2 87.1 91.7 93.5 95.5 95.5 96.0 97.4 97.4 97.5 97.5

GE 5O01 29.9 53.1 60.1 68.8 78.7 83.7 87.6 92.2 9#.1 95.2 96.5 97.2 98.5 98.6 98.5 98.5

GE 4001 29.9 53.1 63.1 68.8 78.7 83.7 87.6 92.2 95.1 95.5 96.7 97.5 99.0 99.0 99.0 99.U

GE 5001 29.9 53.1 60.1 69.0 78.9 55.0 88.0 92.6 95.5 95.7 97.0 98.0 99.7 99.7 99.7 99.7

GE ZO01 29.9 53.1 63.1 69.U 78.9 84.0 88.0 92.6 95.5 95.7 97.0 98.0 99.7 99.7 99.8 99.8

GF 1001 29.9 53.1 63.1 69.C 78.9 85.0 88.0 92.6 95.4 95.7 97.0 98.0 99.7 99.8 10o.0 100.0

GE 1 29.9 53.1 60.1 69.0 78.9 85.0 88.0 92.6 95.5 95.7 9 7

.0 98.0 99.7 99.8 LO.O 130.0

OTAL NUMPER OF ORSERVATIONS: 606

iJ.oimmml m~llmI/Ilb I

GLObAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CFIL1NG VFRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATIIN NAME: ZIERIKZE7 NL PEPIOD OF RECORD: 78-87MONTH: APR HOURS(LSTI: 12' -1400

. .. . .... .......... ...................................................................... ....................................CEILING VISIBILITY IN STATUTE MILES

IN I GE GE GE GE GE GE GE GE GE GE rI GT GE r GE GEFEET I 10 b 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 5/8 1/2 c/16 1/4 U

................. ,.°...,..............,......................................°°.........,......,.....,....°................

NO CEIL 1 16.6 25.9 26.2 30.4 32.n 32.7 33.6 34.4 34.7 35.0 3 .2 35.2 35.2 35.2 35.2 35.2

UE 200001 19.8 32.3 36.2 40.3 43.2 44.1 45.4 46.4 46.7 Q7.C 47.2 47.2 47.2 47.2 47.2 47.2GE 180001 20.1 32.6 35.5 40.6 43.5 44.4 45.7 46.7 47.0 47.3 47.5 47.5 47.5 41.5 47.5 47.5GE 16UOJ 20.1 32.6 36.5 40.6 43.5 44.4 45.7 46.7 47.0 47.3 47.S 47.5 47.5 47.5 47.5 97.5GE 140001 20.1 !2.6 36.5 40.8 43.7 44.6 45.8 46.9 47.2 47.5 47.6 47.6 47.6 47.6 47.6 47.bGE 12COO1 20.4 33.5 37.4 41.7 44.6 45.5 46.9 47.9 41.2 88.6 4F.7 48.7 48.7 48.7 498.7 48.7

GE 100001 22.1 37.6 41.9 46.7 49.6 50. 7 52.5 53.9 54.3 54.8 54.9 54.9 54.9 54.9 51.9 54.9GE 90001 22.1 38.2 42.5 47.3 50.4 51.8 53.7 55. 1 55.6 56.0 56.2 56.2 56.3 46.3 56.3 56.3GE 80001 23.0 40.3 4q.9 40.7 53.9 55.6 57.7 59.4 6n.

0 60.4 60.6 60.7 60.9 60.9 60.9 6U.9

GE 70001 23.1 40.5 45.1 50.8 54.2 56.2 58.3 60.0 60.6 61.0 61.2 61.3 61.5 61.5 61.5 61.5GE 6'00I 23.4 41.4 46.0 51.8 55.3 57.2 59.4 61.0 61.6 62.1 62.3 62.4 62.6 6-b 626 62.b

GE 50001 24.7 44.1 49.5 55.6 59.7 61.8 63.9 65.6 66.2 66.7 66.8 67.0 61.1 67.1 67.1 67.1(E 450| 25.7 46.6 51.9 48.0 62.1 64.2 66.S 68.2 68.8 69.3 69.4 69.6 69.7 69.7 69.7 69.7GE 40001 28.3 51.4 57.4 63.6 68. 70. 8 73.1 74.7 75.3 75.8 76.0 76.1 76.3 76.3 76.3 76.3

GE 35001 29.2 53.1 59.1 65.6 70.6 73.1 75.3 77.3 77.9 78.4 79.5 78.7 78.8 78.8 7A.8 79.8GE 30O1 31.3 5.7 61.6 68.3 73.7 76.1 78.5 80.5 81.3 81.7 81.9 82.0 82.2 P2.2 87.2 gi.,

GE 25001 53.4 47.2 63.5 10.3 76.0 76.5 BI.0 83.E 83.7 84.2 894.3 84.5 84.6 R4.b 84.6 04.6GE 20001 32.7 S9.4 65.9 72.9 78.5 81.1 83.6 85.5 86.3 86.8 86.9 87.1 87.2 47.2 87.2 -7.2GL 18001 33.5 60.7 67.3 74.7 80.7 83.3 85.7 87.8 88.6 A9.2 89.3 89.5 89.6 89.6 89.6 f9.6GE 14UO 34.2 62.1 68.9 76.6 82.6 85.5 88.1 90.3 91.0 01.6 91.p 91.9 92.1 42.1 92.1 91.GE 12U0 34.6 63.0 69.9 77.6 84.n 87.2 90.1 92.4 93.6 94.4 94.4 94.7 94.8 94.8 94.8 94.8

GEl 1O0j 34.6 63.0 17.0 77.8 84.3 87.5 90.6 93. 0 94.2 95.3 94.4 95.6 95.7 9S.1 95.7 ' .7GE 9001 34.6 63.3 7".5 78.2 84.9 E8. 1 91.2 93.6 94.8 95.9 96.0 96.2 96.3 96.3 96.3 96.3GE RI~I 34.6 63.4 7n.8 78.5 85.2 88.4 91.5 94.1 94.6 06.7 6.R 97.0 97.3 97.1 97.3 97.1GE 7001 34.6 3.8 71.2 79.0 85.7 88.9 93.9 94.8 96.7 91.7 9893 98.6 98.8 98.8 48.8 96.8GE 6001 34.6 63.9 71.4 79.1 85.8 89.0 92.1 95.1 97.0 98.2 94.8 99.1 99.2 99.2 99.2 49.2

GE SUO1 34.6 63.9 71.4 79.1 85.: 89. U 92.1 95.3 97.3 98.6 99.4 99.8 100.0 300.0 100.0 170.0GE 4001 34.6 63.9 73.4 79.3 84.9 89.o 92.1 95.3 97.3 98.6 99.4 99.8 103.0 100.0 100.0 130.0

GE 3001 34.6 63.9 71.4 79.1 85.8 89.0 92.1 95.3 97.3 98.6 90.4 99.8 300.0 100.0 100.0 I1u.L

GE 2UO1 34.6 63.9 71.4 79.1 84.9 89.0 92.3 95.3 97.3 98.6 99.4 99.8 100.0 100.0 IUr.O iO0.UGE IUO1 34.6 63.9 73.4 79.1 85.8 89.0 92.1 95.3 97.3 98.6 99.4 99.8 100.0 100.0 I00.0 100.0

GE 01 34.6 63.9 73.4 79.1 85.0 89.0 92.1 95.3 97.3 98.6 99.4 99.8 100.0 100.0 I6.0 iOO.O

TOTAL NUMBER OF OSSERVATIONS: 657

doL.,.

GLOBAL CLIMAIOLOGY BRANCH PERCENIA6E F8-QUENcY OF OCCJRPENCE OF CrILING VrRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AIR WFATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: Z1RIKZEE NL PEITOD OF RECOO: 768a-87MON.T4: APR HOURSILSTI: IS0-1700

IN I GE GE GE E GE GO GE GE GE GE r GI GE GE GE GEFEET I to 6 5 4 3 2 112 2 1 I|2 1 1/4 1 3/4 5/8 112 5116 1/9 0

NO CLL 1 19.1 28.0 29.8 33.4 35.7 36.0 36.2 37.0 37.7 98.0 38.0 39 .0 38.0 38.0 38.0 38.0

uE 200001 2 .7 37.7 40.3 95.j 47.0 48.7 48.8 SO.0 50.7 I.3 51.7 51.3 51.3 51.3 51.3 51.3GE 18000 24.2 3d.2 43.8 45.6 48.8 49.2 89.3 50.8 51.5 52.1 57.1 52.1 52.1 S2.1 52.1 S2.1GE 16001 24.2 38.2 40.8 85.6 48.4 89.2 49.3 50.8 51.5 52.1 !1. 1 ,2.1 2.1 52.1 521. 52.1UE I400C 24.2 38.2 41 .1 45.9 48.7 49.5 49.7 51.2 51.8 57*5 2 7.5 52.5 52.5 52.5 52.5 52.5bE 120001 24.2 39.3 42.3 41.4 50.2 51.0 51.2 52.6 53.3 53.9 33.9 53.9 53.9 53.9 5.9

GE luCOO a5.0 42.6 45.7 51.2 54.3 55. 1 55.3 56.9 57.6 58.2 58.4 8R.8 58.4 S8.4 58.4 5A.4bE 900 25.3 83.b 47.3 53.0 55.9 56.9 57.1 58.7 59.4 60.0 b.? 6n.2 60.2 60.2 60.2 6L.2GE 800 26.8 87.0 53.7 56.7 60.2 61.3 61.5 63.2 68.0 68.6 64.8 68.8 64.8 64.8 64.8 68.8uE 70o0 27.0 87.4 51.U 57.2 60.9 62.0 62.2 63.8 68.6 65.3 69.S 65.5 65.5 65.5 6S.5 b5.56E 6000 27.0 41.7 51.3 57.6 61.? 62. S 62.8 68.5 65.3 66.0 66.1 66.1 66.1 6b.1 b6. 66.1

GE 5000 2R.9 50.3 54.3 63.9 64.6 66.1 66.6 68.6 69.6 70.2 71.8 77.6 10.6 70.6 70.6 7L.66E 4,00 29.6 5I.2 55.3 62.1 66.1 67.8 6R.3 70.2 11.2 71.9 72.0 72.2 72.2 72.2 72.2 7.2GE 4P001 32. 1 55.1 6:.5 61.4 71.9 73.7 78.2 76.2 77.1 77.8 79.) 78.1 71.1 78.1 78.1 78.1GE 350O 32.4 55.8 bO.7 69.3 72.9 7.7 75.2 77.1 78.1 78.8 7A.9 79.1 79.1 79.1 79.1 79.1GE 30001 33.8 51.7 63.0 70.7 75. 78.0 78.5 80.9 81.9 82.6 82.7 82.9 82.9 82.9 87.9 82.9

GE 2 01 34.0 58.6 64.3 7. : 77V 79.8 79.9 82. 6 83.6 88. 8.7 8.9 8.9 84.9 84.9 84.9E z 001 35.8 61. 61.3 7. 80.1 8.6 83.1 5.9 87.0 a7.8 8.? 88.3 88.3 883 88.3 88.3-'1 10001 36.3 63.2 69.2 77.0 82.1 88.5 85.0 87.8 89.0 89.8 9.1 90.3 90.3 90.3 90.3 90.36E 100OI 37.2 65.1 71.2 79.1 84.5 87.2 87.7 90.5 91.6 92.8 97.8 4 .9 92. 92.9 92.9 92.9GE 2 UOI 37.7 65.8 71 .9 79.9 85. 48.2 88.7 91.4 92.6 93.8 93.8 93.9 93.9 93.9 99.9 93.9

SE 100on 37.8 66.4 729 80.6 86.1 49.0 89.5 92.4 93.6 98.4 98.7 98.9 94.9 94.9 98.9 98.9GE UO 3 7.8 66.4 7.5 81.1 86.7 8.6 9.1 93.91 98.2 94.1 94.8 95.6 95.6 95.6 9s.6 95.6(,E 81 37.8 66.6 72.7 81.3 86.q 89.8 9C.3 93.8 95.2 96.2 96.7 96.9 96.9 96.9 96.9 96.9ur 7001 37.8 66.8 7..9 81.4 87.1 90.6 91.3 95.1 96.5 97.7 9A.2 98.8 98.4 98. 4 98.8 98.4r c UO1 31.8 66. 172.9 81.4 87.7 9G.6 91.6 9S.8 97.0 98.5 99.0 99.2 99.2 99.2 99.2 99.2

a oo 37.8 66.8 72.9 81.6 87.5 90.8 91.9 95.9 97.5 99.( 99.5 99.7 99.7 99.7 99.7 99.7r F .001 37.8 66.8 ?2.9 81.6 8.l 96.8 91.9 95.9 97.5 99.L 99.5 99.8 99.8 99.8 99.8 99.8UE '001 37.8 66.9 17.9 81.6 87.8 9L.8 91.9 96.1 97.7 99.2 99.7 l00.0 100.0 100.0 300.0 100.0uL 20uo 37.8 66.6 17.9 81.6 8.- 9.8 91.9 9b.3 97.7 99.. 99.7 100.0 300.0 10.0 100.0 300.0,F I1u0 37.P 66.8 1..9 81.6 87.' 90.8 91.9 96.1 97.7 .99.2 99.7 l70.0 100.0 100.0 IuO.O 100.0

u, 01 37.8 66.8 72.5 81.6 8T.- 7u.8 91.9 96.1 97.7 99.2 99.7 300.0 100.0 100.0 lo0.O 100.0

3OAL NUME( OF OBSfVATIONS: 608

Mulo

61-O6AL CLIMATOLOGY BRANCH PEkCLNIG8E FREOUENcY OF OCCURRENCE OF CEILIN G VFRSUS VISIBILITYUSAFETAC FROM HOU9LY OASERVATIONSAIR wiATHER S[RVICE/MAC

STATION 4UMPER: 063250 5TAT1IO NAME: ZI[RIKF NL PLIOV OF RECORO: 78,80-87

MON7H: APR HOURSILSI): 1800-2 O0

CILIG VISIBILITY IN SATUIF MILESIN G LE CE GE 6E GE 6- GE GE GL GE GL GE GE GE GE GE

FEEl I 10 6 4 3 2 112 2 1 112 I 1/4 1 1/4 5/8 112 S/16

1/4 a

NdO CEIL I 25.3 34.7 37.3 40.1 41.4 42.0 42.4 43.7 44.4 44.6 44.6 44.8 44.8 44.8 44.8 44.8

(,E 201001 29.2 41.5 %%.4 48.6 50.: 51.1 52.5 54.2 54.9 95.1 "9.1 55.2 55.2 55.2 5S.2 55.2(,E 180001 29.2 41.5 4%.4 48.6 50.2 91.4 52.5 54.2 54.9 S5.1 59.1 55.2 55.2 95.2 59.2 55.2G! ]bg0| I9.2 43.5 44.4 48.6 50.7 S1.4 52.S 54.2 54.9 S5.1 9.1 95.2 55.2 S5.2 $5.

2 55.2

( 6 14001 29. 2 41 44.b 48.8 50.5 51.5 52.6 54.3 55.1 '5.2 S9.2 55.4 55.4 55.4 5S.4 55.4

(,F 12loo 29.8 43.2 46.1 5. A 51.9 S.1 5 4

.Z 55.9 5&.6 56.8 96.8 56.9 56.9 56.9 56.9 56.9

.. E I1601 32.3 48.0 51.4 55.6 57. 1 8.5 59.6 61.3 b2.0 62.2 6?.2 62.3 62.3 62.3 62.3 62.36r 9

r00i 32.6 4 .5 57.0 56.3 58.0 59.3 60.3 62.2 63.0 63.3 65.3 63.4 63.4 63.4 63.4 63.4(,E s8Ool 33.3 49.8 53.9 58.6 69.S 62.2 61.3 65.6 66.4 66.7 69.7 66.8 66.8 66.8 66.8 66.86E 7rO1 33.3 0.3 S4.3 59.1 61.1) 62.8 63.9 66.2 67.0 67.3 67.3 57.4 67.4 67.4 67.4 67.4

(r b0 33.S 90.6 58.8 59.7 61.6 63. 4 64.5 66.8 67.7 68.1 6q.1 68.2 68.2 68.2 68.2 b6.2

CE 50 I 35.3 53.4 57.9 63.1 65.3 67.1 6 82 70.7 1.9 72.4 71.4 72.5 I2:5 72:5 72.5 72.56E 4qUflI 36.4 594.8 9 7 65.3 67.6 69.4 70.5 73. 1 14.4 74.8 74.8 75.0 75.0 7,.0 75.0 75.0.F 4CU1 38.9 58.6 63.7 69.8 72.1 73.9 75.0 77.6 78.9 79.3 79.3 79.5 79.5 79.5 79.5 79.5bf 3,001 39.7 6U.5 bS .6 71.6 74.2 76.1 77.2 79.8 81.0 81.5 81.5 81.6 81.6 81.6 61.6 81.6uF c00 41.0 62.9 67.7 74.5 77.5 79.5 80.9 83.8 65.0 85.5 895 85.6 85.6 R5.6 89.6 45.6

CL 29201 41.7 63.4 68.8 76.2 79.7 81.3 82.7 85.6 86.9 87.3 87.3 87.5 87.5 97.5 l7.5 87.51,I o I 41.5 65.9 71.6 79.$ 82.3 4l. 85.8 89.2 90.4 90.9 90.9 91.0 91.0 91.0 91.0 91.0[ ICO 1-44.8 67.b 73.3 81.0 84.' 86.1 87.5 91.2 92.4 92.9 97.9 93.1 93.1 93.1 93.1 93.1F 3-001 49.8 68.5 74.2 81.9 84.4 87.a 88.4 92.1 93.4 93.8 93.8 94.0 94.0 94.0 94.0 94.

0I.E 12i1 9.9 9.1 74 .4 P2.b 85.9 88.1 89.8 93.8 95.1 95.5 9t.5 957 95.7 95.7 99.7 95.7

E luiuOl 4 5.9 6;.4 75.2 P2.9 89.9 48.6 90.3 94.4 95.7 96.1 96.1 96.3 96.3 96.3 96.3 96.34f 90l %9.s 69.b 75.5 83.2 86.1 48.9 90.6 95.4 96.8 97.2 97.4 97.5 97.5 97.5 97.5 975.uf p8OI 4s. 69.b 15.5 83.2 86. 1 84.0 90.7 95.7 97.2 97.7 98.0 98.1 98.1 98.1 99.1 98.1.[ 701 4I 49.S 69.6 79.9 43.2 86.1 09. 2 90.9 96.U 97.5 98.0 9A.3 98.5 98.5 98.5 98.5 98.5r,! bi 45.- 69.6 7s.S 83.2 86.1 49.2 90.9 96.0 97.7 98.1 99.9 98.6 98.6 98.6 98.6 98.6

tbf ',5 495.5 69.b 75.9 81.2 86.1 89.2 90.9 96.5 98.1 98.6 99.1 99.2 99.2 99.2 99.2 99.2CE 4or1 9.9 69.6 is9. 43.2 66.1 89.2 90,9 96.6 98.3 98.8 90.2 99.4 99.4 99.4 90.4 99.4i,[ Un0 45.5 69.6 Is.. q.2 86.1 89.2 90.9 96.8 98.6' 99.2 99.7 99.8 99.8 99.8 99.8 99.8(If '00o 45.5 69.6 75.5 83.2 86.1 89. 2 90.9 96.8 98.6 99.2 99.7 99.8 99.8 99.8 100.0 130.06! 1001 45.1, 69.6 79.9 S 3.2 86.1 89. 2 90.9 96.8 98.6 99.2 99.? 99.8 99.8 99.8 100.0 100.0

LCf 3 49S. 69.6 75.5 83.2 86.1 89.2 90.9 96.8 98.6 99.2 99.7 99.8 99.8 99.8 100.0 100.0

IOTAL NUMPL OF 0P S IAPI3N.: 648

Jd

GLOBIL CLIMBIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCUROENCE OF CFILEING VERSUS VISIBILITYUSA ETAC FROM HOURLY OBSLRVATO'SAIR WEATHER SERVICE/MAC

STATION NUMBER: 06,3250 STATION NAME: ZI RIZEC PE011 OF RECORD: 78,80-873ONTH: APR HOURSILSTI: 2100-2300

.... .... ... .... ... .... ... .... ... .... .... .. i;;; Z;; ' ..' .....' ...;...........................................CEILINGMLS

IN I GE GE GE GE GE GE GE GE GE GE GL GL GE GE GE CIEFEET i1 6 s q 2 1/2 z 1 I/ I 1/N J 1/ 5/8 |/Z 1/16 1/4 6

...... ,................. ............ ....... ... .. ,... ..... ............ .... ... ..... ..... ............ ......... ....... .. ......

NO CETL I 22.3 37.9 i2.4 R4.7 46.5 46. 7 46.7 48.8 48.8 48.b 4P.8 48.8 48.8 46.8 48.8 48.8

G E 20COO 24.6 42.2 45.9 49.7 51.7 51.9 52.2 54.4 54.4 . 4 54 .4 54.4 54.4 S4.4 54.4 ,4.46E 1 0 9 4.6 42.2 46.9 49.7 51.7 51.9 52.2 54.4 54.4 54.4 54.4 44.4 54.4 54.4 54.4 54.4GE ibO0i 24.6 ,2.2 Nb .9 49.7 51.7 51.9 52.2 54.4 54.4 54, 5R. 54 .4 54.4 54.4 54.4 54.4GE 001 24.6 42. 45.9 49.7 51.7 51.9 52.2 54.4 54.4 '4.4 54.4 54.4 54.4 54.4 5.4 54.4(E 120001 24.8 .9 47.6 50.4 52.4 52.6 53.0 55.1 s.1 55.1 51.l 55.1 55.1 55.1 55.1 55.1

bE 100001 25.5 44.9 49.9 53.0 55.1 5. 3 55.7 58.0 58.0 580 . 54.0 58.0 58.0 5.0 sb.0

6E 90CO1 24.4 46.7 51.7 54.8 56.9 57.3 57.6 60.1 60.1 0.1 60.1 60.1 60.1 6.,1 t0.1 bO.1

GE 8C001 26.8 47.4 5.6 55.7 57.8 58.7 59.4 61.9 61.9 61.9 61.9 61.9 61.9 61.9 b1.9 61.9

.E 7oo0 26.8 47.6 53.0 56.0 58.2 59.1 59.8 62.3 b2.3 62.3 62.3 62.3 62.3 62.3 62.7 62.3I.E 60O0 27.3 48.1 53.7 S6.7 59.1 60.0 60.7 63. b3.2 63.2 67.? 63.2 63.2 63.2 63.2 b3.2

GE SCOGI 28,4 49.7 55.7 59.1 61.6 62.7 63.4 66.1 66.2 66.4 66. 66.4 66.4 66.4 66.4 66.46E 45001 28.7 50.6 56.6 60.1 62.8 63.9 64.6 67.3 67.5 67.7 67.7 67.7 67.7 67.? 67.7 67.7GE 40nl 31.1 5..3 2.1 66.4 69.P 71.1 71.8 74.7 74.9 75.U 75.0 75.0 74.0 75.0 74.0 75.0GE 3'001 31.6 b.2 63.4 68.0 71.8 73.1 73.8 76.7 76.8 77.

U 77.0 77.0 77.0 77.0 77.0 77.0

UE 30001 33.4 59.1 66.2 71.8 7S.8 77.2 78.1 81.0 81.1 q1.3 81.3 81.3 81.3 R1.3 81.3 81.3

GE 25001 33.9 60.5 67.7 73.6 77.7 79.4 80.3 83.3 83.7 63.8 43. . 3.8 93.A 3.8 b3.8 83.8OF 20001 35.2 62.3 69.5 75.6 80.1 81.7 82.6 85.8 86.2 86.4 86.4 86.4 86.4 86.4 86.4 86.4.E 10001 36.3 64.3 71.6 77.9 87.4 84.0 85.1 88.3 84.? 88. 8p.9 88.9 88.9 88.9 68.9 88.9

GE I5UO 06.4 65.2 77.9 79.7 84.2 86.0 87.1 90. 3 90.7 90.8 9V.A 90.8 90.8 90.8 90.8 90.8G E 17001 37.0 66.2 74.1 81.1 85.6 87.4 88.5 91.7 92.1 92.3 92.3 92.3 92.3 92.3 92.3 92.3

GE 10001 37.2 66.4 74.5 o1.7 86.,' 68.0 89.2 9Z.5 92.8 93.0 9..0 93.0 93.0 03.1 93.0 93.UI.E OL 317.2 66.6 74.9 82.6 87.1 89.0 90.5 93.9 94.3 94.4 9..4 94.4 94.4 94.4 94.4 94.4(.E 909 37.2 66.6 75.( 82.9 87.4 89. b 91.0 94.0 95.3 95.5 9-.5 95.5 95.5 95.S 94.5 95.5uE 709 37.2 66.6 75.2 83.1 87. f o0. 1 91.6 9.7 96.2 9b.4 96.4 96.4 96.14 9b.4 96.4 96.4GE 60n1 37.2 66.6 75.2 83.1 87.8 90.7 92.1 97.3 97.8 98.0 90.0 QR.u 98. 98.0 98.0 98.0

GE s51 37.2 66.6 75.2 83.1 87.4 90.7 92.1 98.0 98.6 98.7 9A.7 98.7 98.7 98.7 98.7 98.7.E 4001 37.2 66.6 75.2 A3.1 47.8 90.7 92.1 98.2 99. 99.3 99.3 99.3 99.3 99.3 99.3 99.3fE 3001 37.2 66.6 75.2 83.1 87.4 90.7 92.1 98.2 99.1 99.s 99.5 99.5 99.4 99.5 99.5 99.5GE 2001 3 7

2 66.6 75.2 83.1 17.7 9C. 7 92.1 98.4 99.4 99.8 9 .8 99.8 99.8 99.8 99.8 99.8

GF IaOI 37.2 66.b 75.2 83.1 87.8 90.7 92.1 98.4 99.s 99.8 99.Fl 10.0 100.0 1(70.0 t0,0 OC.O

GE 0 37.2 66.6 75.2 83.1 67.P 9C.7 92.1 98.4 99.5 99.8 99.8 100.0 I00.0 I0,O 100.0 100.0

TOTAL NUMRER OF OBSFRVA 13W,: c57

GLOAL CLIMATOLOY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIPILITY

USAFLTAC FROM HOU9LY OBSLRVATIONAIR .wEATHER SERVICEIMAC

STATION NMBR: 063250 STAT I(% NAME: ZIER2E: NL PERO0D OF ECOR0:78-87MONTH: APR HOURSCLSTII ALL

. .... . . . . . . . . . .. . . . . . . . . ...........*.°...................~o. .°. I .* .*... . . . ...... ........... . . .. ..... .CEILING VISIBILITY IN STATUTE MILLS

IN GL GE GE GE GE G- GE G[ E GE GE G G[ GE GE GE GE

FEET 10 6 5 3 2 1 2 2 1 112 1 1/4 1 3/4 i / 112 5/16 1/4 0.. . . . . . . . . . . . . . . . ...................... .. ° . * . . °* . *.. .. . . . .. .° .. ... . ......... . . . . .... .. . .. ...........

NO CIEl 1 18.2 29.7 32.2 35.4 37.1 38.3 38.7 90.0 90.9 40.9 91.n 41.1 91.2 41.Z 41.2 41.5

GE 2Oo31 20.7 34.8 35.1 92.2 44.7 46.1 96.9 98.4 N 8.9 49.5 49.6 49.7 49.8 99.8 99.8 53.1GE 180UO 20.9 35.0 39.3 92.9 95.: 46.3 97.1 48.7 99.2 49.8 91.9 s0.0 50.1 50.1 SO.1 %0.3GE 1 6000| 20.9 35.U 38.3 42.9 95.0 96.3 97.1 98.7 99.2 99.8 99.9 50.0 50.1 50.1 50.1 50.36E 19noo0 21.0 35.1 35. . 92.6 45. 1 6.5 47.3 98.8 49.4 99.9 50.1 5I.1 50.2 0.2 5.3 c.S

E 120031 21.3 35.9 39.3 o3.5 b.6 47., 98.3 99.9 57.5 51.0 51.2 51.2 51.3 51.3 51.9 51.b

CE 100001 22.9 38.9 92.5 97.2 99.9 51.3 52.9 59.2 59.8 55.4 55.5 55.6 55.6 55.7 55.7 55.96E 9C001 22.8 43.3 93.8 98.6 51.5 53.1 59.1 56.0 56.6 51.2 5?.3 57.4 57.5 S7.5 57.6 57.b6E 8001 zJ.4 a ., 95.6 53.8 53.9 55.7 56.8 58.8 59.5 60.1 6f.3 60.9 60.5 60.5 Go.5 60.8GE 71,00. 23.5 91.8 95.9 51.2 5N.9 S.2 57. 59.4 60.1 67.7 61.9 61.0 61.1 61.1 61.1 61.4GE 6010 23.6 4Z.1 95.2 51.6 5.9 56. 7 57.9 60.0 60.7 61.9 61.6 61.6 62.7 61.8 61.8 62.0

GE 5000 29.7 4. 1 49.5 59.2 57.7 59.7 61.0 63.2 69.0 69.7 64.0 b5.0 65-1 65.2 tS.z 65.4GE 95301 25.5 95.6 53.1 56.1 59.7 61.8 63.2 65.4 66.2 66.9 67.1 67.2 67.3 61.9 b7.4 67.6GE 4(Oll 27.8 49.8 55., 61.Z b5.2 67.5 68.8 71.2 12.2 72.8 71.] 73.2 73.2 73.2 73.3 73.5E 31- 0JI 28.6 51.6 55.9 63.9 67.6 70.1 11.9 73.9 79.8 75.5 75 . 7 75.9 76.0 76.0 75.1 76.1

GE 3p01 30.2 59.1 59.c 66.5 71. 73.7 75.2 17.8 78.7 79.9 70.6 79.8 79.9 79.9 80.0 8O.2

GE 0oo 31.1 5S.9 61.6 68.8 73.' 76.2 77.8 80.5 81.9 92.2 82.9 82.6 82.7 82.7 82.8 83.0GE 2.U0i 32.1 57.b 63.6 71.0 75.9 78.6 80.2 83.0 89.0 89.8 85.0 85.1 85.2 85.3 85.3 85.6GE 1 A0 32.8 58.9 5.1 72.6 77.5 90.3 81.9 89.8 85.8 86.6 86. 86.9 87.1 97.1 67.2 8'.

[ I5U00 33.9 60.0 66.9 79.1 79.7 82.2 83.8 86.6 87.8 88.7 89.9 89.0 89.2 89.2 89.3 q9.5GE 1200 31.8 61.3 67.7 75.7 80.9 89.1 85.6 89.0 90.1 Q0.9 91.2 91.3 91.5 91.5 91.6 91.8

GE 1001 33.9 62.6 59. 76.3 82.7 85.0 86.7 90.1 91.1 92. 92.3 92.9 92.6 92.7 92.7 93.0GE 90 33.9 61.9 63.5 76.8 82.2 85.5 87.9 90.9 92.0 93.0 93.3 93.5 93.7 93.? 93.8 99.0Gf Ai 31.9 62. 69.7 77.1 82.7 86.1 88. a 91.8 93.0 99.1 99.9 99.b 99.8 9q.9 94.9 95.2

F 701 31.9 62.1 58.9 17.3 82.9 96.6 88.6 92.6 93.9 95.0 95.5 95.8 96.1 96.1 96.2 9C.4ul (002 53.9 62.1 69.U 77.9 83.2 26.9 88.9 93.2 94.6 95.8 96.3 96.6 97.0 97.0 97.1 97.3

GE i001 33.q 62.1 w9.0 77.5 83.' 87.1 89.2 93.8 95.9 96.7 97.3 97.7 98.1 98.1 98.2 96.9GE 9001 31.9 6Z.1 6.1 77.5 83.9 A?.2 89.3 99.1 95.7 97.1 97.7 98.2 98.6 98.6 98.7 98.9. 20021 53.9 62.1 67.2 71.5 83.4 87.2 89.3 94. 2 95.9 97. 99.0 98.5 98.9 99.0 99.0 99.2

GE 2001 33.9 62.1 69.1 77.5 83.9 8?.2 89.3 99.2 96.0 97.5 98.2 98.7 99.2 99.3 99.9 99.6(E 1030 31.9 62.1 69.2 77.5 83.9 A7.2 89.3 91.2 96.0 97.5 9R.2 98.7 99.2 99.5 99.6 100.0

A 7 33.9 62.1 G9.1 77.5 82.4 81. 2 89.3 99.2 96.0 97.5 98.? 98.7 99.2 99.5 99.6 100.0

T0AL NUM L9 OF DOSE A8T 10US: 9925•1

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILSE, VFRSU$ VISIBILITYUSAF TAC FROM HOURLY OBSERVATIONSAIR 6EAT4HR SERVICE/MAC

STATION NUMP : U632%0 STATI ON NAME: ZERITKZE, NL PEPIOD OF RECORO: 79-86MONTH: MAY HOURSILSTI: 0000-020

.. ....................... °.............................* *. ........................... ..... .....................

CELING VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE G- GE GE GE GE fL GE GE G E 5 GE

rEEl I In b 4 1 2 112 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0

NO CEIL 1 22.9 40.0 42.7 45.8 47.1 47.7 47.7 48.3 48.3 48.3 4n.5 48.5 48.5 48.5 48.5 4b.5

E 20900 1 29.3 92.9 45.8 49.0 50.4 50.8 50.8 51.5 51.5 51.5 51.7 51.7 51.7 51.7 51.7 E. 7bE 1 COn1 24.3 92.9 45.8 99.Q 50.4 50.8 50.8 51.5 51.5 51.5 51 .7 Si.? 1.7 %1.7 51.7 51.7

GF 16001 24.3 42.9 45.S 49.u 50.4 50.8 5.8 51.5 51.5 51.5 51.7 51.7 51.7 51.7 51.7 51.7bE 190001 24.3 42.9 45.8 49.0 50.4 50.8 50.8 51.5 51.5 51.5 51.7 51.7 51.7 "1.7 51.7 51.76F 1,0001 '4.3 43.1 b .0 49.2 50.So 51.0 51.0 51.7 51.7 51.7 51.9 51.9 51.9 51.9 51.9 51.9

4E 100 I 26.2 47.9 51.3 54.4 56.' 57. 1 57.1 57.7 57.7 57.7 57.9 57.9 57.9 57.9 57.9 57.9GE 9nuo 27.2 49.0 5?.5 55.6 57.5 58.4 58.4 59.0 59.0 59.0 59.2 59.2 59.2 59.2 59.2 59.2GE 80001 28.2 50.8 55.6 59.0 60.9 61.1 61.9 62.8 62.8 62.8 6 9.0 (3.0 6 .0 63.0 b3.0 63.0.. I 7'00 I Z8.2 50.8 55.9 S9.2 61.1 61.9 62.1 63.0 63.0 63.0 67.2 63.2 63.2 63.2 63.2 53.2

bE b001 28.5 51.0 56.3 59.8 61.7 62.6 62.8 64.0 64.0 64.0 64.2 64.2 64.2 64.2 64.2 64.2

bE 51GO 28.7 51.7 57.9 b2.3 b4. 65.7 65.9 67.2 b7.2 67.4 67.6 67.6 67.6 67.6 67.6 67.6bE 45071 29.1 53.3 59.6 64.0 66.1 67.6 68.2 69.7 69.7 69.9 70.1 70.1 70.1 70.1 73.1 70.1,[ E 0uo 31.6 58.8 65.3 70.5 72.6 74.1 79.7 76.2 76.2 76.4 76.6 76.6 76.6 76.6 76.6 76.6

*E J O1 32.n 60.5 67.4 73.Z 75.5 77.0 77.6 79.1 79.1 79.3 79.5 79.5 79.5 79.5 79.5 7 9

. 5Si, 3CCnl 1 35.5 62.A 77.1 76.4 78.5 79.9 80.5 82.0 82.0 82.2 87.4 82.4 82.4 R2.4 82.9 S2.4

6F 21001 3.5 64.2 11.8 78.5 81.I 92.4 83.1 84.5 84.5 84.7 34.9 94.9 84.9 R4.9 84.9 94.91, 2q000 3 0.9 64.6 72.4 79.1 81.6 93.1 83.7 85. 1 85.1 85.4 3 8.6 95.6 85.6 85.6 85.6 95.6

GE 180fl 30. 1 65.5 73.7 79.9 82.9 84.3 84.9 86.4 86.4 96.6 86.8 86.8 86.8 06.8 86.9 F6.86f 11001 34.1 65.9 79.1 1.4 84.9 85.8 86.9 87.9 87.9 98.1 89.3 88.3 88.3 98.3 89.3 F6.3bI ]CO 1 34.7 66.7 75.7 83.3 86.7 87.7 88.3 90.0 90.0 90.2 9).9 90.4 90.9 90.4 90.4 90.4

IE 10001 34.9 67.4 76.6 94.1 87.T 48.5 89.1 90.8 90.8 91.0 91.2 91.2 91.2 91.2 91.2 91.2

(,F )OI 34.0 67.6 77.2 84.7 47.1 89. 1 89.7 91.6 91.6 9].8 9'.1 '12.1 92 1 92-1 92.1 92.1(f 9001 39.9 67.6 77.2 94.7 87.9 99.3 90.0 91.8 92.1 92.3 92.5 02.5 92.s 92.5 92.5 92.5(E 7001 34.9 68.0 77.6 96.0 89.51 91.0 91.6 93.9 94.1 94.6 94.9 94.8 94.9 94.8 94.8 94.8

GF 600 34.9 68.4 78 . 86.4 90.? 91.6 92.3 95.0 95.2 95.6 95.8 95.8 95.8 95.8 95.8 95.8

E 9,)c 34.9 68.4 78.2 86.1. 90.9 92.3 92.9 95.6 95.8 96,2 96.9 96.4 96.4 96.4 96.9 96.4GE 901 34. 9 68.4 74.2 86.6 90.0 92.5 93.1 95.8 96.7 97.5 97.7 97.7 97.7 97.7 97.7 97.7

fE 3uOI 34.9 68.4 7. 86.6 90.R 02.5 93.1 95.8 96.9 97.7 97.9 97.9 97.9 98.1 99.1 98.1uE 2 0 30.Q 68.4 78.2 86.6 97.q 92.5 93.1 95.8 97.1 97.9 99.1 98.1 98.1 98.3 98.3 98.3UE 1001 .9 68.4 79.; 86.6 90.9 92.5 93.1 95.8 97.1 97.9 9A.1 98.1 98.1 98.3 99.0 99.6

E ol 0 34 , 68. 4 7 .2 Pb b. 90. 2 9.5 93.1 95.8 97.1 97.9 99.1 98.1 98.1 98.3 99.0 100.0

..........................................................................................................................

T07AL NUMPtrR OF OPSFRVA 71395: 49

GLOtAL CLIMATOLOGY BRANCH PERCENTAGE FReQuENCY OF OCCJRRENCL OF CEILINb VERSUS VISIBILITYUSAFETAC FROM HoURLY OBSERvATIONSAlf? wEATHER SERVICE/MAC

STATION NUMBER: CA(3250 STATICN NAME: ZIERIKZE NL PEP1IOD OF RECORD: 80-84,86

MONTH: MAY HOURSILSTI: 03CO-0500

E ItING VISIBILITY IN STATUTE MILLS

I N J GE GE GE GE GE G_ GE GE GE GE GE FE GE GE GE GEFEET I I

n 6 4 2 1,2 2 1 112 1 1/4 I 1/4 5/8 1/2 5/1lb 1/4

NO CEIL 1 15.4 32.2 35.4 39.2 41.3 41.7 42.2 43.1 43.4 43.9 43.6 43.6 43.6 43.6 41.6 43.6

uE 200001 16.3 33.6 39.5 42.7 45.0 45.7 46.2 47.1 47.6 47.6 47.R 47.8 47.8 47.8 47.8 47.bGE 18c0031 16.3 33.6 384 .S 42.7 45..) 45.7 46.? 47.1 47.6 47.6 47.8 47.B 47.8 47.8 47.8 47.8

zE

160001 16.3 33.6 34.5 42.7 45.1 45.7 46.2 47. 1 47.6 47.6 47.8 47.8 47.8 47.8 47.8 47.8

(,E 14COCI 16.3 33.6 39.5 42.7 45.1) 45.7 46.2 47.1 47.6 47.6 47.4 47.8 47.8 47.8 47.8 47.8

C[ 120001 16.1 13.8 3,.7 42.9 45.; 46.2 46.6 47.6 48.0 48.0 49.3 4.3 48.3 48.3 498.3 46.3

GE Ic1001 17.9 39.9 44.8 49.9 52.4 53.1 53.6 54.8 55.5 95.5 55.7 55.7 55.7 55.7 55.7 5.7GE 9CO1 14.2 43.6 45.7 51.U 53.6 54.3 54.8 55.9 56-6 56.6 56.9 56.9 56.9 56.9 56.9 56.9(,E 8001 18.9 43.4 48.S 54.1 56.6 57.3 57.8 59.2 59.9 59,9 6n.1 60.1 63.1 60.1 60.1 60.1GE 70O01 14.9 43.4 49.5 54.3 56.9 S".6 58.0 59.4 60.1 60.1 6'.4 60.4 60.4 60.4 6C.4 bC.4U1 bnUO1 18.9 43.6 49.0 55.0 57.B 58.5 59.0 6. 4 b1.1 61.1 61.3 61.3 bi.3 61.3 61.3 61.3

GE 50001 19.8 45.0: 53.3 56.9 59.9 b0.6 61.1 62.5 63.2 63.2 b3.4 63.4 63.4 63.4 b3.4 63.4

6 E 45001 21.2 47.6 53.4 60.1 63.4 64.6 65.0 66.7 67.4 67.4 67.6 67.6 67.6 67.b 67.6 67.6CE 40UO1 ZZ.6 EL.7 56.3 65.5 68.F 59.9 70.4 72.0 73.0 73.2 73.4 73.4 73.4 73.4 7'.4 73.4GE 35001 23.1 ,55.5 62.0 69.2 72.1

, 73.7 74.1 75.8 76.7 76.9 77.2 77.2 77.2 77.2 77.2 77.2

bE 3V01 24.2 57.6 65.1 71.3 74.8 76.0 76.7 78.3 79.3 79.5 7Q.7 79.7 79.7 79.7 74.7 79.7

GE 2r001 25.4 60.4 67.1 74.8 78.6 do0.0 80.7 82.3 83.2 P3.4 87.7 83.7 83.7 83.7 83.7 83.7FE 20001 2S.6 61.3 68.3 76.U 79.7 81.1 81 .8 83.4 84.4 S4.6 84.8 84.4 84.8 84.8 84.8 '4.8:E IPOO I 25.6 61.S 68.8 76.5 80.4 91.8 82.5 84.1 85.1 85.3 8S.5 PS 5 85.5 85.5 85.5 85.5

GE 1I 1 26.1 63.2 7O.4 78.6 82.r 83.9 84.6 86.2 87.4 87.9 89.1 P8.1 88.1 P8.1 84.1 88.1UE 17 00] 1 26.1 63.2 70 .4 78.6 83.1 44.6 85.3 86.9 88. 1 88.6 89.8 88.8 88.8 88.8 89.8 88.8

FIE 1001 26.3 63.9 71 .1 79.5 84.4 86.0 86.7 88.6 89.7 q9.3 90.4 90.4 90.4 90.4 90.4 90.4

bf 9001 6.3 64.1 71.3 80.0 84.9 86.5 87.2 89.5 90.9 91.4 91.6 91.6 91.6 91.6 91.6 91.bGE PO l 26.3 64.1 71.! 80.4 85.3 87.2 88.1 90.4 91.8 92.3 92.5 92.5 92.5 92.5 92.5 9_.5

bG 7OO 26.3 65.U 72.3 81.8 86.7 88.8 90.0 92 5 94.2 94.6 94.9 94.9 94.9 94.9 94.9 94.96E 6001 26.3 65.60 72.3 81.8 86.7 89.0 90.4 9.0 94.6 95.1 99.3 35.3 95.3 95.3 95.3 95.3

GE 5U0 26.3 65.0 77.3 82.1 87.? 9.5 90.9 93.7 95.3 96.7 97.0 97.2

97.2 97.4 97.4 97.4GE 4001 26.3 6,5.0 77.3 82.1 87.? 89.5 90.9 93.9 95.6 97.0 97.2 97.4 97.7 97.9 97.9 97.9GE 1001 26.3 65.0 72.3 92.1 87:2 89. 5 90.9 93.9 95.6 97 0 97.2 97.7 97.9 98.1 98.1 98.1GE 2001 26.3 65.0 72.3 82.1 87.2 49.5 90.9 93.9 95.6 97.0 97.? 97.7 98.1 98.4 98.4 95.4

GE 1001 26.3 65.) 72.3 42.1 87.2 49.5 90.9 93.9 95.6 97.0 97.4 97.9 98.4 98.8 98.8 49.8

GE TI 26.3 65.0 77.3 42.1 87.' 89.5 90.9 93.9 95.6 97.- 97.4 97.9 98.4 98.8 94.8 100.0

TOTAL NUMPEO OF URSERVATIONS: 429

2~

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSUS VISIgILITY


STATION NUMBER: 063250 STATION NAME: ZIERIKZEC NL PLOO OF PECORO: 78-66

MONTH: MAY HOURS(LSTI: 0600-0800

...... ................................................................................................................CEILING VISIBILITY IN STATUTE MILES

IN I GL GE GE

GE GE Gz GE GF GE GE ,E GE GE GE GE GE

FEET 3 10 6 5 4 3 2 112 2 I 1/2 1 1/4 1 3/4 518 1/2 S/16 1/4 0

..... ................................................................................................................

N0 CEIL 1 12.1 23.5 25.4 28.0 31.2 32.3 32.5 34.0 34 7 35.3 35.3 35.6 35.6 35.8 35.8 36.0

GE 200GOI 13.4 27.4 29.9 33.0 36.9 38.1 38.2 39.7 40.9 41.6 41.8 N2 .4 42.4 42.7 42.7 42.9GE 180001 13.4 27.6 33.0 33.2 37.1 38.2 38.4 39.9 41.0 41.8 4?.0 42.5 42.5 42.9 42.9 N3.1

4E 16100 13.4 27.6 33.0 33.2

37.1 38.2 38.4 39.9 41.0 41.8 42.0 2.5 42.5 42.9 42.9 43.1

GE 14000I 13.6 Z7.8 33.Z 33.4 37.! 38.4 38.6 40.1 41.2 42.0 4?.2 42.7 42.7 63.1 63.1 43.3

GE 120001 13.6 28.4 31.0 34.1 38.1 39.4 39.6 41.2 42.7 43.5 43.7 44.2 44.Z 44.6 44.6 4N.8

GE 100001 14.6 34.1 37.1 41.0 46.5 48.3 48.5 50.4 52.1 52.8 53.0 53.5 53.7 S4.1 54.1 54.3

GE 9COOI IS.3 35.4 38.6 42.7 48.1 50.0 50.2 52.2 53.9 S4.9 55.0 55.6 55.8 56.2 56.2 56.36E 80001 16.6 38.2 41.8 47.2 52.6 54.5 54.7 56.9 59.0 59.9 60.1 60.6 b.0 61.4 61.4 61.6

GE 70001 16.6 38.2 41.8 47.4 52. 54. 7 54.9 57.3 $9.3 60.3 60.4 61.0 61.4 61.8 61.8 61.9

GE 6(1000 16.6 38.8 42.4 47.9 53.4 55.2 55.6 58.2 60.3 61.2 61.4 61.9 62.3 62.7 62.7 62.9

GE 5001 17.4 41.0 44.6 50.7 56.7 s8.6 59.0 61.8 63.8 65.1 69.3 65.9 66.2 66.6 66.6 66.8

GE 45001 17.4 41.8 45.3 51.7 97.6 59.5 59.9 62.7 64.7 66.0 6. 2 bb.8 67.2 67.5 67.5 67.7GE 4C O3 138.7 45.3 49.1 55.6 61.9 64.2 64.6 67.4 69.4 70.7 70.9 71.6 72.0 72.4 72.4 72.6GE 35003 20.5 47.9 51.7 58.4 64.7 67. 6 67.7 7C.9 73.1 74.4 74.6 75.4 75.7 76.1 76.1 76.3GE 30001 21.1 48.9 52.6 59.7 66.C 68.7 69.0 72.2 74.4 75.7 7,.9 76.7 77.1 77.4 77,4 77.b

GE 2COI 22.4 50.9 54.7 62.1 68.7 71.3

71.6 75.0 77.2 78.5 78.7 79.7 8U.0 80.4 80.4 8C.6

r,E 20001 22.8 52.1 55.8 63.4 70.0 72.6 72.9 76.5 78.7 80.0 80.2 81.2 81.5 81.9 81.9 82.1

GE 16001 22.9 53.2 56.9 64.7 71.5 74.3 74.4 78.2 80.4 81.7 81.9 82.8 83.2 83.b 83.6 83.8

GE I00| 23.3 59.1 59.2 66.2 72.9 75.6 76.1 80.2 82.5 f3.8 84.0 84.9 85.3 85.6 85.6 85.8GE 120 1 23.9 S5.2 59.3 67.5 74.4 77.2 77.8 81.9 84.3 65.6 85.8 86.8 87.1 97.5 87.5 87.7

GE 1000 23.9 55.2 59.3 67.9 74.8 77.6 78.2 82.3 64.9 86.6 86.8 87.7 88.1 88.4 88.4 86.6GE 9033 23.9 55.4 59.5 68.1 75.2 78.4 78.9 83.0 85.6 87.7 87.9 88.8 89.2 89.6 89.6 89.7

uE 8003 23.9 55.8 59.9 68.7 75.7 78.9 79.7 84.1 87.1 89.2 89.4 90.3 90.7 91.0 91.0 91.2bE 7 U0S 23.9 56.L 63.1 69.2 76.5 79.9 80.6 85.1 86.1 90.1 90.5 93.4 91.8 92.2 92.2 92.4

GE 6GO 23.9 56.2 63.3 69.4 76.7 80.0 81.0 86.2 89.4 91.8 92.2 93.1 93.7 91.3 94.0 94.2

GE 5U0 23.9 56.2 63.3 69.4 76.7 80.2 81.2 86.4 89.7 72.2 92.7 93.7 94.4 94.8 94.8 95.0GE 4003 23.9 56.2 63.3 69.4 76.7 80.2 81.2 86.6 89.9 92.7 93.3 94.2 95.9 95.9 95.9 96.1GE 3 01 23.9 56.2 b3.3 69.4 76.7 80.2 81.2 86.6 89.9 92.7 93.3 94.2 95.7 96.6 96.6 96.6

GE 2311 23.9 56.2 60.3 69.4 76.7 80.2 81.2 86.6 89.9 92.7 93.3 94.4 96.1 97.4 97.4 98.5

GE 1003 23.9 56.2 63.3 69.4 76.7 80.2 81.2 86.6 89.9 92.7 9 .3 Q4.4 96.1 97.4 97.4 99.6

bE 03 23.9 56.2 63.3 69.4 76.7 80.2 81.2 86.6 89.9 92.7 93.3 94.4 96.1 97.4 97.4 100.0

TOTAL NUMBER OF OBSERVATIONS: S36

41mK

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STAI ION NAME: ZiLRIKZE- NL PERIOI OF RECOPO: 78-84,86MONTH: MAY HOURSILSTI: 0900-1100

CEILINGVIIITYNSTTEMLS

I Pi GE GE GE GE GE G7 3E GE GE GE GL GE GE GE GE GEFEET 10 6 S 4 3 2 112 2 1 112 1 1/4 1 3/4 518 112 5/16 1/4 0

NO CEIL 1 18.5 30.8 32.0 34 .2 35.4 35.6 36.0 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3 36.3

GE 200001 22.6 39.7 41.3 44.2 45.6 46.Z 46.6 47.3 47.7 47.7 47.7 47.7 47.7 47.7 47.7 47,7GE 18C001 22.6 39.9 41.5 44.4 45. 46. 4 46.8 47.5 47.9 47.9 47.9 47.9 47.9 47.9 47.9 47.9bE 160001 22.6 39.9 41.S 44.4 45.9 46.4 46.8 47.5 47. 97.9 4.Q 47.9 47.9 47.9 47.9 47.9GE 140001 22.8 40.3 42.3 44.8 46.7 46.8 47.3 47.9 48.3 48.3

49.3 48.3 48.3 48.3 48.3 46.3

GE 120001 23.2 42.0 43.6 46.6 48.1 48.7 49.1 49.7 50.5 50.5 50.5 50.5 50.S 50.5 5,.5 50.5

GE IOCOO 24.6 45.2 47.3 51.1 53.0 54.2 54.6 55.4 56.4 56.4 56.6 56.8 56.8 56.8 56.8 56.8GE 9uO01 25.1 46.0 48.1 52.3 54.? 55.4 55.8 56,8 57.8 57.8 58.0 58.2 58.2 r8.2 58.2 5b.2

fE ACOO 25.9 47.3 49.9 54.4 56.2 57.6 58.0 59.1 60.5 60.5 6-7 60.9 60.9 60.9 60.9 60.9GE 7001 26.1 47.5 53.3 54.8 56.8 58.2 58.7 59.7 61.1 61.1 61.3 61.5 61.5 61.5 61.5 61.5GE 6r001 26.1 47.9 53.7 55.9 57.4 58.9 59.3 60.3 61.7 61.7 61.9 62.1 62.1 62.1 61.1 62.1

GE 50001 26.1 49.1 52.3 57.U 59.1 60.5 60.9 61.9 63.3 63.3 b.5 63.7 63.7 63.7 63.7 63.7. 45001 27.3 51.1 54.8 59.7 6I.7 63.1 63.5 69.6 66.0 66.0 66.2 66.4 66.4 66.4 b6.4 66.4

G E 40001 28.9 53.8 57.4 62.7 65.0 66.4 66.8 68.2 69.9 69.9 7n.1 70.3 70.3 70.3 70.3 7U.3GE 35001 29.9 55.4 59.3 64.8 67.2 68.6 69.0 70.5 72.1 72.1 72.3 72.5 72.5 72.5 72.5 72.5GE 30001 30.8 57.6 62.1 67.6 70.1 71.9 72.3 73.7 75.4 75.4 75.6 75.8 75.8 75.8 75.8 75.8

i E 2S001 32.8 61.5 66.0 71.5 73.9 76.0 76.6 78.0 79.6 79.6 79.8 80.0 80.0 4O.0 60.0 80.0GE 20001 33.6 63.7 69.7 75.8 78.4 d0.4 81.1 8Z.5 84.1 84.1 84.5 14.7 84.7 R4.7 84.7 84.7.E 18001 34.8 65.4 71.3 77.6 80.2 82.3 82.9 84.3 86.2 86.2 86.6 86.8 86.8 96.8 86.8 E6.8

GE 15001 35.2 67.0 73.1 79.4 82.3 84.9 85.7 87.2 89.2 89.2 89.8 90.0 90.0 90.0 90.0 90.0GE 12001 35.2 67.6 73.7 80.0 82.9 85.5 86.' 88.0 90.4 90.6 91.2 91.4 91.4 91.4 91.4 91.4

.E 10001 35.6 68.c 74.1 80.4 83.3 85.9 86.8 88.6 91.0 1.2 91.9 92.1 92.1 92.1 9?.1 92.1GE 900 35.6 68.6 74 .7 81.1 83.9 46.6 67.4 99.4 91.9 92.1 92.7 92.9 92.9 92.9 92.9 92.9GE 8001 35.6 68.8 74.9 81.3 84.5 97.2 88.0 90.4 93.1 93.7 94.3 94.5 94.5 94.5 94.5 92.5GE 7UO 35.6 68.8 74.9 81.7 85. 1 a7.8 88.6 91.4 94.1 94.9 95.5 95.7 95.7 95.7 95.7 95.7GF 6dO1 35.6 69.0 75.2 81.9 85.3 86.0 88.8 91.6 94.3 95.1 95.7 96.1 96.1 96.1 96.1 96.1

,E 5001 35.6 69.0 75.2 81.9 85.3 88.0 88.8 91.6 94.5 96.1 96.7 97.1 97.1 97.1 97.1 97.1GE 4001 35.6 69.U 75.2 81.9 85.3 88.0 88.8 91.6 94.5 96.1 96.9 97.4 97.4 97.6 97.6 97.6

GE '00 35.6 69.C 75.2 81.9 85.3 88.0 88.8 91.6 94.5 96.5 9R.2 98.8 99.0 99.4 99.6 99.6GE 200 35.6 69.0 75.2 81.9 85.3 88.0 88.8 91.6 94.5 96.5 94.2 98.8 99.0 99.4 99.6 99.6GE 1O 35.6 69.0 75.2 81.9 85.7 88.0 88.8 91.6 94.5 96.5 9R.2 98.8 99.0 99.6 99.8 100.0

GE 01 35.6 69.0 75.2 81.9 85.3 88.0 88.8 91.6 94.5 96.5 9R.2 98.8 99.0 99.6 99.8 100.0


-- .,llmmmmmmm, a L.

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSUS VISIBILITYUSAFE EAC FROM HOUqLV ObSLRVIIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 78-86MONTH: MAY HOURSILSTI: 12JO-1400

....................... . . . . ............ .... .............. ........ .............. .........................

CEILING VISIBILITY IN STATUTF MILESIN GE GE GE GE GE GE GE GE GE GE GL GE GE GE GE GE

FEET IC 5 3 2 12 2 1 1/2 1 1/4 1 3/4 5/8 1/2 ;/16 1/4 0

NO CLIL 72.2 33.5 3M .6 35.4 36.9 37. 1 37.2 37.6 37.6 37.6 37.6 37.b 37.6 37.6 37.6 37.6

IE 20000 26.I .0 2.3 4.3 46.6 46.9 47.3 48.0 48.0 48.0 MR . 4.0 48.0 48.2 49.3 48.0GE 18000 26.1 41.0 46.3 44.3 46.6 46.9 47.3 48.0 48. .0 4 4R 0 94.0 48.0 480 49.0 4.0

GE IbO00 26.1 41.0 42.3 44.3 46.6 46.9 47.3 48.0 8.0 48.U 49 . 48.0 48.0 48.0 49.0 48.0GE IJool 26.1 41.U 42.3 44.5 46.9 47.3 47.7 48.4* 48.4 48.4 4A.4 48.4 49.4 48.4 48.4 48.4GE 120001 26.4 42.5 43.8 46.2 48.6 49.0 49.3 50.1 50.1 s0.1 5n.1 50.1 53.1 40.I SQ.1 50.1

5E 100001 30.0 47.3 49.8 52.1 55.1 55.9 56.2 57.0 51.2 57.2 57.2 57.2 S7.2 57. 2 7.2 57.2GE 90001 30.2 47.7 49.5 52.9 55.9 56.8 57.4 58.3 58.5 58.5 54.7 68.7 54.7 58.7 59.7 58.7GE 80001 31.5 49.3 51.4 54.9 57.9 58.8 59.6 60.5 60.7 60.7 b.9 60.9 6c.9 60.9 60.9 60.9GF 73001 31.7 49.6 51,6 55.i 58.1 $9.0 59.8 60.7 60.9 60.9 61.1 61.1 61.1 61.1 61.1 61.1GE 60001 31.7 49.5 51.6 55.1 58.1 59.0 59.8 60.7 60.9 60.9 61.1 61.1 61.1 61.1 61.1 61.1

GE 5OO 32.6 51.4 53.6 57.7 61.1 62.0 62.8 63.9 64.1 64.1 64.2 64.2 64.2 64.2 64.2 64.2GE 4!S0O 32.8 52.5 54.9 59.2 62.6 63.5 64.2 65.4 65.7 65.7 6 .9 65.9 65.9 65.9 65.9 65.9GE 40001 35.2 55.9 58.3 62.8 66.1 67.4 68.5 69.8 70.2 70.4 70.6 70.6 70.6 70.6 70.6 70.6GE 35001 35.8 57.5 63.0 64.4 67.8 69.1 70.2 71.5 71.9 72.1 72.3 72.3 72.3 72.3 72.3 72.3GE 30001 37.1 60.7 63.1 68.0 71.7 73.2 74.3 76.0 76.5 76.9 77.1 77.1 77.1 77.1 77.1 77.1

GE 25001 37.8 62.4 65.0 70.0 73.7 75. 4 76.9 78.6 79.1 79.5 79.9 79.9 79.9 79.9 79.9 79.9GE Zr0111 39.3 65.5 68.5 73.9 77.A 79.5 81.0 82.7 83.2 83.6 84.0 q.o 84.3 84.0 V9.0 E4.0GE 18COI 39.9 68.3 72.5 76.9 80.8 82.5 84.2 85.8 86.4 86.8 87.2 87.2 87.2 97.2 87.2 87.2GE 1 01 40.6 71.1 74.3 80.4 84.6 86.4 88.1 89.8 90.3 '0.7 91.1 I.1 91.1 41.1 91.1 91.1GE 17CO 1 41.0 72.6 75.8 82.1 86.5 89.0 90.7 93.5 94.0 94.4 94.A 94.8 94.8 94.8 94.8 94.8

GE 10001 41.2 72.8 75.0 82.5 87.2 99.9 91.6 94.6 95.2 95.5 95.9 95.9 95.9 95.9 96.9 95.9GE 9001 41.2 72.8 75.2 82.7 87.7 90.1 92.0 95.0 95.7 96.1 96.5 96.5 96.5 96.5 96.5 96.5GE 8001 41.2 73.0 76.4 83.1 87.9 90.7 92.6 95.7 96.6 97.0 97.8 97.8 97.1 97.8 97.8 97.8bE 7001 41.2 73.0 76.7 83.4 88.5 91.2 93.1 96.6 97.8 98.1 99.9 98.9 98.9 98.9 95,9 98.9GE 6001 41.2 73.5 76.7 83.4 89.6 91.4 93.3 97.0 98.1 98.5 99.3 99.3 99.3 99.3 99.3 99.3

GE I001 42.2 73.0 75.7 83.6 88.A 91.6 93.5 97.2 98.5 99.3 IJO.0 100.0 100.0 100.0 200.0 100.0UE 4001 42.2 73.0 76.7 83.6 88.8 91.6 93.5 97.2 98.5 99.3 200.0 100.0 100.0 100.0 10 .0 100.0bE 3201 41.2 73.0 7 .7 83.6 88.8 91.6 93.5 97.2 98.5 99.3 200.0 100.0 103.0 IO.0 100.0 100.0GE 2001 41.2 73.U 76.7 83.6 88.8 91.6 93.5 97.2 98.5 .99.3 100.0 100.0 100.0 100.0 100.0 100.0GE 1001 41.2 73.0 75.7 83.6 88.R 91.6 93.5 97.2 98.6 99.3 100.0 100.0 100.0 200.0 100.0 10.0

GE 01 41.2 73.0 76.7 83.6 88.P 81.6 93.5 97.2 98.5 09.3 2o0.0 100.0 100.0 100.0 100.0 100.0


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE 0F CEILING VFRSUS VISIBILITY

USAFLIAC FROM HOUqLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STAT1I4 NAME: ZIERI2E- NL PEIO0 Or RECORD: 78-84,86MONTH: MAY HOURSILST): 1500-17

03

CEILING IIIIYI IIT IL

IN i GE 6E GE GE GE GE GE GE GE GE rE GE GE GE Gf GE

FEET 1 10 6 5 8 3 2 112 2 1 112 1 1/4 1 X/4 5/8 112 9/16 1/ 0.... °...............................................°.°.....°....°.......... o.............°.....°I.e..°...........

NO CEIL I 25.3 36.6 38.3 40.2 ql.1 41.5 41.9 Z.6 82.6 42.6 87.6 42.6 42.6 42.6 42.6 42.6

GE 200001 30.6 88.5 86.8 49.1 SQ.r 50.8 50.9 51.5 51.6 51.5 51.S 51.5 51.9 51.5 51.5 51.5

.E 180001 30.9 88.7 85.6 49.4 50.Z 90.6 51.1 51.7 51.7 51.7 51.7 S1.7 51.7 S1.7 51.7 51.7

OE 160001 30.9 44.7 46.6 49.8 50.7 90.6 51.1 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7

tE 18C001 30.9 45.3 87.2 90.0

50 . 51.5 51.7 52.3 52.3 52.3 52.3 52.3 52.3 52.3 52.3 52.3

GE 127001 31.3 87.9 89.8 92.b 53.8 %3.8 58.3 58.9 5%.9 59.9 5.9 58.9 58.9 58.9 58.9 58.9

bE 100001 34.7 52.8 55.1 58.1 58.9 59.8 59.8 6I.1 61.3 63.3 63.5 61.5 61.5 61.5 61.5 61.5bE 90001 35.3 58.0 56.8 60.2 61.1 61.5 61.9 63.2 63.4 63.8 6;.6 63.6 63.6 63.6 63-6 63.6

GE 8000 36.8 56.8 59.1 62-6

b3.b 68.5 65.3 66.6 67.0 67. 0 67.2 67.8 67.8 67.8 67.4 67.8

GE 7-001 36.8 56.8 57.1 62.8 63.6 68.7 65.5 67.0 67.8 67.8 67.7 67.9 67.9 67.9 67.9 67.9-r 60001 36.8 56.4 59.1 63.0 68.- 65.1 66.0 67.8 67.9 67.9 6A.1 68.3 68.3 68.3 68.3 68.3

6E 50001 38.1 8.3 61.5 65.3 66.& 67.9 68.7 70.8 70.9 70.9 it.1 71.3 71.3 71.3 71.3 71.3

GE 45001 80.0 60.9 68.5 68.5 69.9 71.3 72.1 73.8 78.3 74.3 79.5 71.7 74.7 78.7 8.7 74.7GE 4VO01 81.3 63.8 67.8 71.9 73.: 78.7 7S.7 77.9 78.3 78.3 78.5 78.7 78.7 78.7 78.7 78.7GE 35001 81.9 68.9 65.9 73.6 74.9 76.6 77.9 80.0 80.8 90.4 9.6 80.9 80.9 80.9 80.9 80.9uE 30001 83.8 67.4 71.5 76.6 78.7 80.8 81.7 88.0 88.5 84.5 8.7 88.9 84.9 84.9 84.9 8N.9

G E ZSU01 6.0 70.8 78.7 80.9 83.4 85.3 86.6 88.9 89.8 89.4 89.6 89.8 89.8 89.8 89.8 e9.8GE 20001 87.8 72.1 76.4 t2.6 85.1 87.0 88.3 90.6 91.1 91. 91.3 91.5 91.5 91.5 91.5 91.5GE 18001 87.7 72.6 77.0 83.8 86.3 88. 1 89.8 91.7 92.1 92.1 92. 3 92.6 92.6 92.6 92.6 92.6GE 15001 8.1 73.6 75.1 88.7 87.9 90.0 91.3 93.6 94.0 98.0 94.3 98.5 98.6 98.5 98.5 98.5

bE 12001 88.5 74.3 79.1 85.7 88.9 91.1 92.3 94.9 95.3 95.3 9..5 95.7 95.7 95.7 95.7 95.7

GE 10001 88.5 ?.7 83.0 87.0 90.? 92.3 99.6 96.2 96.6 96.6 97.0 97.2 97.2 97.2 97.2 97.2

GE 9001 88.5 75.1 83.8 87.8 90.9 93.2 98.5 97.2 97.7 97.7 98.1 98.3 98.3 98.3 98.3 98.3GE 800l 8.5 7S.5 80.9 88.1 91.5 93.8 99.1 98.1 98.5 98.7 99.1 99.8 99.8 99.8 99.8 99.8GE 700I 9. 75.6 83.9 88.1 91.5 93.8 9S.1 98.1 96.5 98.7 99.1 99.8 99.8 99.4 99.4 99.8GE 6001 88.5 75.5 83.9 88.1 91.5 93.8 95.1 98.1 98.5 98.7 99.1 99.8 99.8 99.8 99.4 99.4

( 5001 8,5 76.5 83.9 88.1 91.S 93.8 95.1 98.3 98.7 98.9 99.8 99.6 99.6 99.6 99.6 99.6

1[ 5001 48.5 75.5 83.9 88.3 93.3 93.8 95.1 98.5 99.1 99.6 99.8 100.0 100.0 300.0 100.0 1O0.0

GE 3001 88.5 75.5 83.9 88.1 91.! 93. 8 95.1 98.5 99.1 99.4 99.8 100.0 100.0 300.0 100.0 300.0GE 3001 88.5 75.5 83.9 88.1 91., 93.8 95.1 98.5 99.1 99.4 99.9 100.0 100.0 100.0 100.0 100.0

GE 101 48.5 75.5 83.9 88.1 91.% 93.8 95.1 98.5 99.1 99.8 90.8 30.0 100.0 100.0 300.0 100.0

GE o 88.5 75.5 83.9 88.1 91., 93.8 95.1 98.5 99.1 99.8 99.8 100.0 100.0 100.0 100.0 100.0

101L NUM9BR Or OBSERVATIONS: 70

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

JSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063253 STATION NAME: ZIER3KIEE NL PE9IOO OF RECORD: 78.80-86~MONTH: MAY HOURSILSTI: 1800-2200

..... .. .. . .... ... ...... . ................ , .., ..., ..... *.. ............ .. .. .. .. .,, .* ... ...... ,........ .

CEILINJG VISIBILITY IN STATUTE MILLS

IN I GE GE 3E GE GE G: GE GE GL GE GE GE GE GE GE GEFEE I 1 6 S 4 3 2 1;2 2 1 112 1 1/ 1 T/4 5/8 1/2 5/16 1/4 0

NO CEL I 27.4 38.7 43.3 41.2 42.4 42.8 43.0 43.8 44 .4 447 44.9 t4.9 44.9 44.9 49.9 44.9

1 20001 34.- 48.4 53.8 52.1 53.3 53.7 54.1 55.3 56.8 56.2 5.4 6.4 56.4 56.4 56.4 S6.4GE 180013 34.2 48.4 53.8 5Z.1 53.3 3.7 54.1 55.3 55.8 56.2 5 .4 56.4 56.4 T6.4 56.4 5b.4G 16001 34.2 48.4 53.8 52.1 53.3 53.7 59,| 55. 3 55.8 56.2 5.4 66.4 S6.4 56.4 56.4 56.4[,E 140001 34.2 48.4 50.8 S2.1 53.1 53.7 54.1 55.3 55.8 S6.2 S6.4 6.4 S6.4 b.4 56.4 56.4

GE 12001 34.2 49.6 51.9 53.5 54.9 55.3 55.6 57.0 57.6 58.0 5P.2 98.2 58.2 S8.2 59.2 b.2

UE 100001 37.7 S6.0 54.8 60.5 61.9 62.3 62.8 64.4 65.2 65.6 66.8 65.8 65.8 65.8 b5.8 65.8GE 90001 37.9 57.2 63. 62.6 64.2 64.8 65.4 66.9 6?77 68.3 b6.5 68.5 68.5 68.5 bP.5 68.5GE 801 40.9 62.1 65.4 68.3 70.6 71.4 72.4 74.3 75.1 75.7 7A.! 76.1 76.1 76.1 76.1 76.1GE 70001 41.1 62.3 66.0 68.5 7O.R 71.6 72.6 74.5 75.3 75.9 7.3 76.3 76.3 76.3 76.3 76.3GE 600 41.1 62.3 66,U 68.5 70.8 71.6 72.6 74.5 75.3 75.9 76.3 76.3 76.3 76.3 76.3 76.3

GE SEf00l 41.8 63.6 61.3 69.8 72.2 73.0 73.9 76.3 77.0 77.6 79.0 78.0 78.n 78.0 7t.0 78.0rC 4s001 41.8 65.6 69.5 72.0 74.7 75.1 76.3 78.8 79.6 R0.2 BC.5 lu.5 80.5 80.5 8.5 8U.51E 4000 45.1 68.5 12.6 7s.5 77.8 78.8 80.2 82.9 83.7 84.2 84.6 84.6 84.6 84.6 84.6 k4.bGE 3-OOI 45.9 69.8 74.1 77.2 79.6 80.5 81.9 84.8 85.6 86.2 86.6 86.6 86.6 A6.6 86.6 86.6uE 30uo1 46.7 71.4 75.9 79.0 81.7 82.3 83.9 87.2 87.9 88.7 8q.1 89.1 89.1 89.1 89.1 89.1

uE 2o001 46.7 72.L 76.S 80.4 82.9 83.9 85.4 88.7 89.5 90.3 90.7 90.7 90.7 9u.7 90.7 qC.7GE 20U01 46.7 72.8 77.2 81.1 83.9 84.6 86.4 89.7 90.5 91.2 91.6 91.6 91.6 91.6 91.6 91.6GE 1RO 46.7 72.8 77.2 81.1 83.9 84.8 86.8 90.1 90.9 91.6 92.0 92.0 92.0 92.0 97.0 92.0GE 15001 47.1 73.9 78.6 83.3 85.9 86.8 88.7 92.0 92.8 93.6 94.0 94.0 94.0 94.0 94.0 94.3GE 120n1 47.3 74.? 79.4 84.4 87.2 88.1 90.1 93.4 94.2 94.9 91.3 95.3 95.3 95.3 9%.3 95.3

GE 10001 47.! 74.9 850 86.0 87.7 88.7 90.7 94.0 94 .7 95.5 9 .9 q6.9 95.9 95.9 96.9 Q5.9GE 9001 47.3 75.83 1 .4 85. 88.3 89.3 91.2 94.6 9S.3 96.1 96.S 96.5 96.5 96.5 96.5 96.5G 80U0 47.3 75.3 83.5 85.6 89.1 90.1 92.0 95.5 96.7 97.5 97.q 97.9 97.9 97.9 97.9 97.9

GE luo 47. 3 75.3 82.s 85.6 89.6 90.5 92.4 95.9 97.1 97.9 98.7 98.2 98.2 98.2 98.2 98.2,E 6001 47.3 75.3 80.5 85.6 89.7 90.7 92.8 96.3 97.5 98.2 9-.6 98.6 98.6 98.6 99.6 98.6

CE 5GO 47.3 75.3 6.5 85.6 89.7 90. 7 92.8 96.3 97.5 98.4 9q.0 99.U 99.0 09.0 99.0 99.GE o01 47. 7.3 82.5 95.6 89.7 90.7 92.8 96.3 97.5 98.4 99.0 99.0 99.0 99.0 99.0 99.GE 160 I 47.3 75.3 80.5 85.6 89.7 90.7 92.8 96.3 97.5 98.6 99.6 99.6 99.8 99.8 99.8 99.8GE 2001 47.3 75.3 81.5 R5.6 89.7 90.7 92.8 96.3 97.5 98.6 99.6 99.6 99.8 99.8 99.8 99.8E 301 7.3 75.3 83.5 85.6 89.7 90.7 92.8 96.3 97.5 98.6 99.6 99.6 99.8 300.0 300.0 100.0

GE a 47.3 75.3 80.5 85.6 89.7 90.7 92.8 96.3 97.5 98.6 99.6 99.6 99.9 100.0 I0.0 110.0


*L

I|

GLObAL CLIMATOLOGY BRANCH PERCENTAGE FRIQUENCY OF OCCURRENCE OF CEILING VrFSUS VISIBILITYuSAFETAC FROM HOURLY OBSCRVATIONS


STATION NUMBLR: 063259 SI| 1 NAME: ZI[RIKZEE NL PEQIO0 OF RECORO: 78,80-44.86MONTH: PAY HOURS(LSTI: 2100-2300

IN I GE GF GE GE GE 6- GE GE GE GE rI GE GE GE GE GEFELT I 1 63 5 4 R 2 112 2 1 1/2 I 1/4 1 3/4 5/8 1iZ 4/lb 1/4 0

NO CEIL I 29.2 43.1 44.9 4b.0 47.? 47.2 47.4 47.8 47. 48.1 49.5 48.1 48.7 48.7 48.7 49.5

UE 200001 33.7 49.7 51.9 53.3 54.4 4. 4 54.9 55. 4 5.4 S5.6 46.0 6. 3 56.3 56.3 56.3 56.5uE 180001 30.7 49.7 51.9 53.3 54.4 54.4 54.9 55.4 55.4 5.6 56.0 96.3 6.63 56.3 56.3 S6.5GE 160o00 33.7 49.7 51.9 S3.3 54.4 S4.4 54.9 55.4 5S.4 55.6 56.0 956.3 56.3 56.3 6.3 5b.5GF 14001 33.7 49.7 51.9 S3.3 54. 44.4 54.9 55.41 54.4 55.6 59.0 46.3 56.3 46.3 56.3 56.5

GE 12o001 33.7 50.3 52.b S4.0 55.4 55.41 55.8 56.3 56. 3 56.S 5.9 57.2 57.2 S7.2 57.2 57.4

GE 10000 35.4 55.6 57.9 59.5 60:M 61.0 61.4 62.b262.? 62.4 b.9 63.3 63.3 63.3 63.3 63.6GE 9CO01 34.4 4.2 67.1 61.7 63.8 64.2 64.7 65.4 65.4 65.6 66.1 66.5 66.5 66.5 66.5 66.7bE 8001 36.9 59.9 63.6 65.1 67.1 68.3 68.8 69.9 69.9 70.4 7,. 71.3 71.3 71.3 71.3 71.5

6E 70GO1 37.6 60. 64.5 66.3 68.4 69.7 70.2 71.3 71.3 71.8 77.2 72.7 72.7 7Z.7 72.7 72.9bo 60001 37.6 60.6 64.5 66.3 68.8 69.7 70.2 71.3 71.3 71.8 72.2 72.7 72.7 72.7 72.7 72.9

GE 50OO1 39.0 62.9 66.5 68.3 70.4 71.8 72.2 73.3 73.3 73.8 74. 3 74.7 74.7 74.7 74.7 74.9GE 4 [I 39.6 h.2 67.9 69.7 72.2 73.1 73.6 74.7 14.7 75.2 75.6 76.1 76.1 76.1 76.1 76.3GE 4n001 42. 69.7 73.8 76.5 79.3 80.41 80.9 82.0 82.5 42.9 87.4 83.8 83.8 83.8 83.8 84 .

G1 35601 43.3 71.5 75.6 78.8 81.5 82.7 83.1 84.0 85.6 46.1 86.6 87.2 87.2 87.2 87.2 87.5Gr 30001 44.2 73.1 77.4 80.9 83.6 84.7 85.2 87.0 87.9 88.4 88.8 89.5 89.5 89.5 89.5 89.7

UE 250 1 44.6 7'.U 79.4 81.8 85.2 86.3 86.8 88.b 89.4 90.0 9f.4 91.1 91.1 91.1 91.1 91.3

GE 2'O01 44.9 74.9 79.3 82.9 86.6 87.7 88.2 90.0 90.9 91.3 91.8 92.5 92.S 92.5 9Z.5 92.7GE 14001 44.9 74.9 79.7 83.6 87.2 88.4 84.8 90.7 91.6 92.0 92.5 93.2 93.2 93.2 93.2 93.4

t, 14001 44.9 75.4 87.4 84.3 87.9 89.1 89.5 91.3 92.3 92,7 93.2 93.8 93.8 93.8 93.8 94.1

GE 12001 45.6 77.7 82.9 86.8 90.7 91.6 92.3 94.1 95.0 95.4 9.9 96.6 96.6 96.6 96.6 96.8

OF iron, 45.6 77,7 82.9 86.8 90.7 91.8 92.3 94.1 95,0 95.4 94.9 96.6 96.6 96.6 96.6 96.8

.E 9001 495.6 78.4 83.6 87.5 91.3 92.5

92.9 94.8 95.7 9b.1 96.6 97.3 97.3 97.3 97.3 97.5L.E QOI 45.6 78.4 83.6 87.5 91.1 92.5 92.9 94.8 95.7 96.1 96.6 97.3 97.3 97.3 97.3 97.5

CE 7001 45.6 78.4 83.6 87.5 91.6 93.2 93.6 95.4 96.4 96.8 97.3 97.9 97.9 97.9 97.9 98.2

bE bo1 4,.6 78.4 as.6 87.7 92.3 93.4 93.8 95.7 96.6 97.0 97.S 98.2 98.2 98.Z 99.2 98.4

ur stio1 4".6 78.4 83.b 87.7 97.0 93. 4 93.8 95.7 96.6 97.0 97.4 98.2 98.2 98.2 98.4 98.6GE 4001 45.6 78.4 83.6 877 92.r, 93.4 93.8 95.7 96.6 97.0 97.7 98.4 98.4 088.4 98.6 98.9

UE 3001 45.6 78.4 83.6 47.7 92.9 93. 4 93.8 95.7 96.8 97.5 98.2 98.9 98.9 98.9 99.1 99.3'.1 7001 4S.6 ?8.4 83. 87.7 92.7 93.4 93.4 95.7 96.4 *97.5 9P.2 98.9 99.3 99.3 99.5 99.8..E I U1 4S.6 78.4 83.6 81.7 92.9 93.4 93.8 95.7 96.8 97.5 9R.2 98.9 99.3 99.3 99.5 99.8

GE n1 45.6 78.4 83.6 87.7 92.n 93.4 93.8 95.7 96.8 97.5 9R.2 98.9 99.3 99.3 99. 100.0

TOTAL NUMBER Of OBSERVATIONS: 439

*

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERVUS VISIBILITY

uSAFEJAC FROM HOUqLY OBSERVATIONSAIR WEATHER SERVICE/PAC

STATION NUMBER: C63250 SIATION NAME: ZILRIKTEE NL PERIOD OF RECORD: 78-86

MONTH: MAY HOURSILSTI: ALL

CEILIN, VISIBILITY IN STATUTE MILLS

IN I GE GE iE GE GE G GE GE GE GE GE G GE GE GL GEFEET I IC 6 5 4 3 2 1f2 2 1 112 1 1/4 1 314 /8 112 /I6 1/4 0°... . . . . . . . . . .. . . . . . . . . . .. . . . . . . . ....°..... . *.... . . ... . . . . . .. . . . ....... ° .. ... ....

NO CEIL 1 21.5 34.6 36.4 38.5 40.3 1 4. 5 40.7 41.4 41.6 41.8 41.9 42.0 42.0 42.0 42.0 42.1

GE 20300 25.1 4.8 43.2 45.8 47.5 48.1 48.s 49.3 49.6 49.8 SO.0 50.1 50.1 50.1 50.1 50.2b E 380009 25. 1 80.8 43.2 45.8 47.7 48.2 48.5 49.4 49.7 49.9 51.1 50.2 60.2 50.2 50.2 50.3GE 160001 25.1 40.8 43.2 45.8 47.7 48.2 48.S 49.4 49.7 49.9 50.1 50.2 50-

2 t0.2 50.2 50.3

6E 1471nl 2S.2 41.0 43.4 46.0 47.9 48.4 48.7 49.6 49.9 50.1 50.3 50.4 60.4 50.4 50.4 5U.5LE 100 25.3 42.1 44.5 47.2 49.? 49.7 50.0 50.9 61.4 51.5 51.7 51.8 61.8 51.8 51.8 1.9

GE 307001 27.6 47.2 49.9 53.2 55.5 56.3 56.7 57.8 68.4 58.6 59.4 58.9 58.9 59.0 59.B 59.UGE 90309 28.1 48. 3 51.3 54.7 57.2 58.1 s.4 59.6 60.2 60.5 0.7 60.8 60.9 60.9 b0.9 61.0

LE 80001 29.4 S0.8 54.3 58.0 60.7 61.7 62.Z 63.6 64.3 64.6 64.6 65.0 65.0 65.1 65.1 65.2GE 7OU01 29.6 51.0 54.5 58.4 61.C 62.1 62.6 64.0 64.7 65.0 65.3 65.4 65.5 65.5 b5.5 65.6.E 6709 29.6 51.2 54.8 58.7 61.4 62.5 63.0 64.5 65.2 65.5 65.7 65.9 66.0 66.U 66.0 66.1

6F 5001 30.4 S2.7 5b.6 60.9 63.7 64.9 6S.5 67.1 67.8 68.1 '.4 68.6 68.6 68.7 b8.7 68.7E 4r00I 31.3 54.5 Ss.I 6Z.9 65.9 67.1 67.7 69.4 70.2 70.6 70.7 70.9 71.0 71.0 73.0 71.1

GE 49009 33.2 58., 62., 67.4 70.4 71.8 72.5 74.4 75.2 75.6 75.9 76.1 76.1 76.2 76.2 76.2iE 3JO I 34.0 60.2 64.6 69.7 72.7 74.2 75.0 77.0 77.9 78.3 79.5 78.8 78.8 78.9 78.9 78.9

GE 30009 35.1 62.2 66.8 72.1 76.3 76.9 77.7 79.9 80.8 81.3 41.5 81.7 81.8 A1.8 81.8 81.9

IA 25001 36.1 64.3 69.0 74.7 78.1 79.8 80.7 82.9 8 l.8 84.3 84.5 84.8 84.8 84.9 84.9 86.0IE 20U1I 36.7 6 .7 73.7 76.6 80.3 81.8 82.7 84.9 85.9 96.3 86.6 86.9 86.9 87.0 87.0 87.0

GE I001 37.0 66.6 71.7 77.7 81.4 83.1 84.1 86.3 87.3 87.7 88.0 88.3 88.3 '8.4 88.4 88.4ul ICO 37.4 67.9 73.Z 79.6 83.4 85.2 86.2 88.4 89.5 89.9 90.3 90.5 90.6 90.6 90.6 90.7IE 12001 37.8 68.9 74.3 80.9 84.8 86.7 87.8 90.3 0 1.4 91.9 92.2 92.4 9z.6 92.6 97.6 92.b

(E IrU01 37.9 69.2 74.R (1.5 85.5 87.5 88.5 91.1 Y,.2 92.7 93.1 93.3 93.4 93.5 93.5 91.5IE 9001 37.9 69.5 75.z 81.9 86.9 88.1 89.1 91.8 93. 0 93.6 93.9 94.2 94.2 94.3 94.3 94.4GE B009 37.9 69.7 75.4 82.2 86.5 88.6 89.? 92.6 93.0 4.6 95.0 95.2 95.3 95.4 95.4 9S.4

GI 70o1 37.9 69.9 75.6 82.7 87.7 S9.4 90.5 93.6 95.0 95.7 96.1 96.4 96.4 9b.6 96.5 96.5GE 6001 37.9 70.0 75.7 82.8 87.4 89.6 90.8 94.0 95.5 96.3 96.7 Q7?. 97.0 97.1 97.1 97.1

E c009 37.9 70.0 75 . 7 82.9 87.6 89.8 91.0 94.0 95.8 96.8 97.3 97.6 97.7 97.8 97.8 97.9GE O00 37.9 70.0 75.7 82.9 87.6 89.8 91.0 91.40 96.0 97.1 97.7 98.0 98.2 98.3 98.3 98.41GE 3UOI 37.9 70.0 75.7 82.9 87.6 89.8 91.0 94.4 96.0 97.3 98.0 98.4 98.6 98.9 99.9 99.0rE 2001 37.9 70.0 75.7 82.9 87.6 89.8 91.0 94.4 96.1 97.?3 94.0 98.4 98.8 99.1 99.1 99.3I. ool 37.9 70.0 75.7 82.9 87.6 89.8 91.0 94.4 96.1 197.3 98.0 98.4 98.8 99.2 99.3 99.8

LE r9 37.9 7U.0 75.7 82.9 87.6 19.8 91.0 94.4 96.1 97.3 9q.0 0S." 91.8 99.2 99.3 100.0

TOTAL NUMOLR OF OBSERVATIONs: 1894

LOBAL CLIMAiOLOGY BRANCH PEkCENTAGE FR-jUE4CY OF OCCURRENCE OF CEILING VFRSUS VISIBILITYUSAFETAC ROM HOURLY OB[RVATIONSAIR WEATHER SERVICEIMAC

5TATION 4UMPER: 063250 STATION NAME: ZIIRIKZE3 N1 PLPIOD OF CECORD: 80-RAMONTH: JUN HOU9S(LSTI: 0OO(-OZ3

CEL ING. VISIBILITY IN STATUTE MILES

IN GL GE G .E GE G GE Gr OF GE E GI GE Gr GL GFEET 10 6 5 4 t 2 ItZ 2 1 112 1 1/4 1 1/4 5/b 112 1/16 1/4 C

NO CEILn 17.4 35.3 36.5 40.71 44.0 472 47.9 9.8 0.2 0. S".? 50.9 SO.9 11.2 S.? ', .

E 2000 1.1 37.9 59.5 44.4 98.1 51.6 52.3 54.2 54.4 55.3 5, 5..b 55.6 55.8 55. b 6.0GE I8O0 i8.1 37.9 39.5 44 .4 48.1 1. 6 52.3 54.2 54.9 5s.3 3 .I 5 * .6 55.6 s5.8 5.8 A 6.

GE 16UO 18.1 31.9 39.5 14.4 48.1 51.6 52.3 54.2 54.9 s5.3 1.1 Ss5.6 55.6 S5. a 5.8 6.c

GE 14000% 18.1 37.9 3?.5 44.4 48.1 51.6 52.3 54.2 54.9 '5.3 5.,,1 55.6 55.6 55.8 5 .8 56.0UE 121o001 1.1 38.1 39.8 44. 7 48.4 51.9 52.6 54.8 55.1 S5.b 5. 6 55.8 55.9 q 6.0 56.0 -6.3

S 10001 19.3 41.9 44.0 50.0 5. ST. 7 S8.4 60.2 60.9 61.4 61.4 61.6 61.6 61.9 61.9 6,.I6! 9001 19.3 42.6 48.7 50.1 54.5 58. 59.1 b0.9 61.6 62.1 6.1 62.3 b?.S 62.6 62.6 62.9GE 60001 20.7 4b,

0 49.1 54.4 59.1 62.6 63.3 65.1 6S.8 66.3 b,#.I 66.5 66. 6b.7 667, f7.4

i.E 70001 10.7 46.0 4.1 54.4 59.1 62.6 63.3 6S.1 65.4 66.3 bfo S.3 b6 .5 66.S 66.7 6.7 6T.4IE 6Q0O0 20.9 46.7 4S.6 55.3 60.0 63.5 64.? 66.0 66.7 67.2 67.2 67.4 67.4 67.7 6y7. 68.4

GE 500 23.0 49.5 52.1 58.6 63. 6.7 67.4 69.3 70.0 70.5 70.5 73. 73.7 70.9 70.9 11.6

F 4' UOI 23.7 52.6 55.1 61.6 66.3 69.8 70. 5 72.3 7.0 73.5 73. 73.7 7.7 74.0 74.U 74.?IE 4CoDO Z5.8 57.1 63.2 61.2 12. I 1S.6 76.3 78.1 Y8.8 79.3 79. 79.5 79.5 79.8 79.4 R0.SGE 3So: 7:.4 59.8 6,. 69.5 744 77.9 78.6 80.5 81.2 A8.6 81.6 41.9 81.9 Rz.1 67.| e2.8

6E 3r0O 8.6 61.b 64 71.4 76.7 80.5 81.2 83.0 83.7 P4.2 84.2 $4.4 84.4 44.7 84.7 $S.3

UF 21001 30.0 63.7 66.S 73.7 79.1 83.0 83.7 85.6 86.3 46.7 46.7 P7.0 83.0 M7.2 87.2 P7.9G1 z00 30O.7 61'.1 67.9 75.1 80.7 84.4 85.1 87.0 b7.7 89.1 8A. I 8.4 88.4 98.6 8.6 89.3o, 18UQ 31.2 66.0 69.8 76.0 81.6 5.3 86.0 87.9 88.6 89.3 89.3 F9.! 89.s A9. 89.8 9u.UE 1500 31.4 66.7 6.8 T7.2 82.R h6.5 87.2 89.1 89.8 90.7 9'.? 7c.9 90.9 91.2 91.2 91.9GE 120U0 32.1 67.9 71.2 79.3 84.9 R.b 89.3 91.2 91.9 92.8 97.P 93.0 91.0 95.3 y.3 94.0

UE TOUT0I 3.1 67.9 71.2 79.8 65. 89.1 89.8 91.6 92.3 93.3 91.1 91.5 93.5 93.7 93.7 94.4GE 9001 32.1 67.9 71.2 79.8 85.8 89.s 90.2 92.6 93.3 94.2 94.2 94.4 94.% 94.7 94.7 95.3

GE OLD1 3'.1 68.1 71.4 80.2 86.3 90.2 90.9 93.5 94.2 75.1 9".1 95.3 95.3 95.6 95.6 96.36E 710 1 32.1 6q.4 713b 80.9 87.2 91.? 92.1 94.7 95.3 96.3 96.1 96.5 96.7 97.0 97, 97.7GE 600I 52.1 68.4 71.6 81.2 87.1 91.9 92.8 95.8 96.5 97.4 97.4 97.1 97.9 98.1 98.1 98.8

uE t001 32.1 6.4 71.6 81.4 OR. 92.3 93.3 96.5 97.2 98.1 90,I

98.4 94.6 Q8.8 9P.8 99.5I.E $I01 32 1 68.4 71.6 81.4 88.1 92.3 93.5 96.5 97.2 98.1 98.1 98.4 98.6 98.8 98 99.5GE 3CO 32.1 68.4 71.6 81.4 88.1 92.3 93.3 96.5 97. '98.4 9-.4 94.6 98.8 99.1 99.1 99.6

GE 2001 32.1 68.4 7.6 81.4 88.1 9 2 - 3 93.3 96.5 97.4 98.4 9k.4 94.6 98.8 99.3 99.3 100.0oF 1001 32.1 68.4 71.6 81.4 88.1 92.3 93.3 96.5 97., 98.4 9p.4 94.6 98.8 99.3 99.3 100.0

(,E n% 32.1 68.4 71.6 81.4 88.1 92.3 93.3 96.5 91.4 98., 9P.4 94.6 94.4 99.3 99.3 1DO".

TOTAL NUMBER Of OPSERVATIONS: 450

.!12e

GLOBAL CLIMATOLOGY PRANCH PEICEN!AG( WLQU[NCY OF OCCEJRtNLI OF CrlLiNt vr80us VISIBILITY

USAFETAC f ROM HOUI LY OBSERVATI]ONS

AIR AI HEk SERVICE/MAC

S IAoN NURER: 10632 0 STAIJION NAME; 7'Rl4i . tL PL -I o Of [L.OPO: 93-84,8640NIN5 JUN OUSILSI 2: OO-0703

IN I GE GF ( f d Gf G GE GE G I GE C, L GI GI GE It (IIFEE I in 6 5 2 192 2 2 11/2 1 1/4 1 '/N S/0 1/2 S/lb /4 U

NO CEIL I Z.' 242 26.4 3 .Ub 34.- 3. . 36.2 39.1 NO.1 N1.6 41.8 41.8 47. NS.O0 4.3 44.3

u.E 23UOI 125.4 ?7. 29.8 IN.7 38.6 40.3 41.3 44. 3 4S.2 46.7 4,.9 4b.9 47.4 '8.2 %.4 4 . 4L,! I cLi 15.4 21. 4 . 34.7 36.6 40.3 11 .3 414. 4 65.2 46.7 46.9 46.9 47.4 Na .? 48.4 4s.4t, r6001 23.4 an . 27.4 2;?.b 34.1 3.- 40.3 81.3 44.31 46.2 Nb.1 4.9 4b.4 N7.N 48.2 '-.N N

9.4.

(,[ I%4r On 1 .4 27. 9.8 34 . 3.6 N0. 41.3 44.3 46 .2 Nb.? 7 f. 4 6.9 47.4 4 a . I%4.2 4 49..,.,f IriaI 13. .1 31 .b 35.7 39.6 41.3 4,3 65.2 46.2 477 4 7.9 N7.9 N8. %9.21 4q.% 6...4

t I U,00 2 4%.4 a9. 3 12.8 56.9 45. 4

s 46.5 49. 6 90.6 c.? .3 6 ' ..6 61 53.2 68 N. 66.R 66..7

u. 471o7I II,.? 31.6 34.I %0.8 45.1 47.9 A.9 52.1 S3.1 54.61 66. 6.6 56.? ,7.0 57.2 " A.,Ws aIor_, 26.6 3,L 3b.4 43. 0 47.9 5L.1 51.I S4.3 55.3 67.0 57.? 67.7 54.4 5,z 69. 4

t-b

f Ir n 2 6. 6 35.3 16.9 43.5 468.4 60.6 52.b 54.8 56.0 -7.7 S7.9 68.4 S7.1 S9.9 6.I b1.4S, 6P0 I '5 .6 33.7 S.4 44. 49.4 62.6 52.6 55.7 7.0 68.7 . R.9 69.4 60.1 6J.4 63.1 b2.3

f sOLlO I 17.8 37.7 41.8 %9.2 54. 6 6. 5 57.5 60.6 61.9 63.6 6 .8 b .3 650 5 .8 bb. 671.ut 4i On I I0 2.2 79.6 43 .8 52.2 562 618.7 59.7 62.8 64.1 65.8 66 . 66.5 67.z 68.0 68.2 69.4

6| C 7%r6v 19.6 43.3 41.9 5.5 bo.6 63.2 64.2 6y.5 6,.9 70.7 7r.9 11.4 72.1 72.9 73. 1 74.3jF 3,001 ; 4 .6 49 .6 67.2 62.5 614.8 bS.8 69.2 70.7 72.4 72.6 73.1 73.8 74.6 71.8 16. :yf ifUo0 2. 2 47.4 52.6 60.2 66,7 67.7 68.7 72.2 73.6 75.3 7,.6 76.0 76.8 77.5 17.8 79.0

E 2%002 .2.7 48.9 64.0 62.9 67. " 69.4 10.7 74.2 75.6 77.3 7T.5 78.0 4 4.7 79.5 19.7 8

.9

Gt i lI , .? 62.3 67.6 5 766 1. 4 3.8 76.1 78.7 80.2 81.9 82.2 82.6 83.4 84.2 44.14 86.66l 1l001 24.9 64 .UC 69.4 67.5 71. 7.8 77.0 80.7 82.4 84.1 84.4 814.8 85.6 86.3 66.6 97.8

t V1 Ur. 1 2 6.7 '4.8 61.1 68.2 74.1 76.5 77.8 81.9 83.6 A5.! 86,.6 86.2 86.8 87.5 87.8 89.0f.E I -orB 2 r,.9 66.3 63.0 69.2 75.6 78.0 79.2 83.9 86.6 87.3 87.% 8.0 89.8 99.5 89.7 91.0

L.F luLO ;2.9 ,.3 62. .1 69.4 7S. 78.2 79.6 84.6 86.3 A8.3 at.5 9.0 89.7 0,.5 92.7 qI.9GEC 9,d - . 0 66.3 61.4 69.7 7b. 79.0 80.2 85.6 87.5 89.5 8.7 90.2 91.0 91.7 91.9 93.2LF po9 25.9 5.3 b1.4 7.2 77.51 40. 8.14 88.0 90.0 91.9 92.2 92.1 93.4 94. 1 94.4 95.6

I ?(,aI ,2.9 65.3 61.b 70.4 77.* 8L.9 82.2 89.5 91.4 93.4 93.6 94.1 94.9 95.6 96.8 97.1I1 600 26.9 s.3 61.6 0. I 17.' 91.4 82.6 90.7 92.7 911.9 9.1 95.6 96.3 97.1 97.3 98.5

1.f ' L | ,.9 66.3 61.6 7L.7 77.9 81.7 82.9 91.0 92.9 95.1 96.4 95.8 96.6 97.3 97.6 98.8G, 4(001 .79 5.3 b2.b 70.1 7.A 81. 1 82.9 92.0 9..9 9S.4 96,.6 96.1 97.1 97.8 90 .0 9.30F 'ur i 2.9 c6.3 61.6 7.7 717.4 81. 7 82.9 92.U 92.9 96.6 9,.8 96.3 97.3 98.3 9P.5 99.6oF 2113l 26.9 66.3 62.b 70.7 77.9 41.1 82.9 91.0 92.9 95.6 96.8 96.3 97.3 98.5 9f,.8 100.061 20ol1 Z5.9 5. 3 61 .6 70.7 77.R A2.17 82.9 91.0 92.9 95.6 9. A 96.3 97. 8. 98.8 100.0

of (I 26.9 6.3 b2.6 70.7 77.9 91. 7 82.9 91.0 92.9 95.6 96.4A 96.3 97.3 98.5 94.8 100.0

TOTAL NUMPE R OF OSRVA I2OIS: "u9

* ..

GLt(dAl CLIMATOLOGY 44*41)4 PtACtNIAGF FR:oUr4CY or OCCJRQ[NCI Of CfIrING V'RSuS vISIP'l11E,u5 AfL T AC FROM HO00317 OBSERVATIONSAII P7 kfANER SERVICE /8*1

S18730N NUMB'ER:L) ,1120 STAI IEON NAME ( 1: RZI ItC P 41 101)o 0F ArCORO: 77-86MONdTH: JUN HO00951SI 303-3933J

I E I Li 6fSt S GE K GE L tGE GE Of G ( -L GE I r G (if St GErjt I I~ n ' 2 32 2 1If12 I 1/4 3 1 'j S/6 1312 ;/3I4 1/4 u

NO1011f I 331.2 .1 1.A 14 .31 27.4 9 .1 ;I IT.1 30).4 32.0u 33.6h '44.5 !1 .2 ' 1.2 3S.9 'S.4 3S., '6.31

i~t ?Urina I 1 1.9 z23. 9 26. 30Sd.3 32. (31. 3 31.6 35.4 13.2 19.9 921.5 40.C '43.2 '40.2 91. '4L.-9Il11 0,60 1 1 1.'4 24.1 245.71 3;. 3 32.. 33. 5 33.8 3S.6 31 .3 39. 1 41 .' 40.2 411. 40.4 0.4 '41 .1I

IrEu 3011 1.94 4.31 26 .1 30.35 32,.21 33. 5 3 3.9 35.6 331. 3 19.: 1 1.' 4'].2 9.3.4 '40U.9 4 4C. 4 41 .1IGE 191001 1 1.9 242 26 . 3351.4 02.4 13. 6 34.0 35. 8 3?.5s 1?.i '4 1. 4 40.4 43.5 '40. 5 %'.S 41.2

I~ 12'0 11.9 ,q. .9~ 5 1W.2 34 -. : 15.4 3P.8 37.S 19 .3 1.31 4'.I1 '42.1 "2. 1 42.3 '4' . 1 '43.2

1 09 or 1,32.4 2. m 31 .3 16. 3 3Q .. '4p. 9 41 .6 43. 4 4S.31 46. 9 ..- 0 98 .0U '4A3. 48.5 44.5 '49..-If 9,ai z2.1 ? 9 37 .1 38I.2 4 1.6 43. 4 44 .1I 46.0 41 .8 p 49j 7 5'.19 0(1.4 53 .2 51. 3 531. 3 S .

f7 41005 1t .A 35 .41 43.9 '45.1 47. 8 44.? S I.0D 521. 1 "4q.9 s S.9f '15. 9 516. 3 5.5 S A s5 s.2Il I035 14.0 '2. 3.9 412.7 .6.4 4e. 7 49.1I 52. 0 54 .0 sb6.1I 57. I 7. 3 57.17 1.9 s57. 9 16 .

.,f 6 jgI 34.2 12 . 37 .2 43.9 %97.6h '49.9 5

1 .0 1. 3 55.? 51c . 3 4;,.' SR .8 %9.1 119.3 59. 3 6 0. 0

t, tE 5900 34 .9 1..7 33.5 46.5 501.9 5.2. 9 54.U 56. 5 58A. 6 60.71 631.9 6..1 62. 62. 7 f0'.?7 6 3.%GE 455 35O .4' 35.9 430.9 148.. 52.1 1". 5 55.6 58. 2 61.-1 62.5 ,1.? 61.9 64. 64 .4 69.4 65.1.F %4105 I 1. 2 38.9 '44.3I s . 3 55 .6 56.31 59.5 62. 3 64.6 ~ (.F 6'. .i 64.1I 64I.5 64a.7I 6.. 69 .4

3E 3o0I 11.17 41 . 45.5 52z.71 57.1 'q. 6 61 .1 63. 9 66.2 68. 3 67.6 69.9 13. 3 70.4 7".4 712.1 in305I38.9A 431.6b 47 .3 14. 7 59.34 61.6 63.0 65.8 68.3 13.6 1.9 12 .2 12.6 712.1 7?1. 7 7 3.5v

"1 .1 s ul 19. 1 4 3.1L 43.; S57 .3 62.1 65.0 66,.5 6 9. 4 7 1 .I 74.2 I1 7. 4 75.eb 76.1I 76. 3 it6.1 7 7.0u7 2"0 I n , 7 4b.. V 52. 6.9 66.4 69.2 1 0.8 73.6 75.9 18.4 714.6 80.0 80.4 941. 5 641.5 41.2thE I$p '5r21.9 48.3 I Ss.i 6b3 .7 68a.' 73.17 73A.% 76. 3 78.6 81. 1 8'. 1 ft2.7 8a3.3 '13.2 61.. 153.Vt.E 3115l 22. 49.9 57.j 65 .4 71 . 1 74. 3 76.1 78. 9 6sI.2 m83. 9 8-1.31 F 4.5 85a.8 A 6.0 86.3 86.7.F 100 1 . 9 '1 .5! 59.9 67.8 73.71 76. 3 74.1 SI. ? 83.5 -6.2 A97.4. 77?.8A As.1I a8.3 8.1. 89.0

,f I~' 24f)1 . 1 s51. 9 s59.6 68.5 714.' 71T. 2 78.9 82.31 84.4 A87 . A 9-. q R '4.17 R4.3 49.2 6-4.2 P9.9or u00 2,4.1 52 .1 59 .9 68.71 I.. 74. .115 79.3 82. 5 85.0 A1.6 88 .8 A P9.2 4 9.6 819.7 8 9.1 90.4I. 8005 2t.2 52.0 62 . C 69 .0L 75S.6f 79. 3 81 .2 84. 4 86.9 '9.6 97.0n 93 .3 93 .7 93.9 93 .9 92".6bS 700 i%.)I *.2 63 .2 69.6 76l.1 8A. 2 42.1 85.5 88.0 92.6 9'1. " ?.6b 9 1 .1 93.31 91. 3 94.u

GE bn 6c,0 ;. 2.2 b6. i 69.71 76.', h0.1 812.7 86.4 819.9l 41 .9 91... 93.8 94. 3 94..5 94.5 '45.2

Iot 'InS 1~. 5.4 63.4% 3. 7 7.1 1.: 83.6 8 1.S; 87.8 90.6 93.5 96,.2 95.8 96. 3 96. 6 96.6b 971. 3(,f 41)0 F24.1I '1". . 61.5 7 . 4 77.5 91.9 84.3 88.5S 93 .1 94.4 96.6 9 T1?2 ? 47 9.3.1 48.2 '48.9

IE ',305 24.1I S. 4 6 1.' 10.4 77.5 "1. 9 841 88 .5 91 .7 94.9 96 .6 97 .z 97.q 98 .2 9-.% 99. 1.' jnI £4.1 52,.4 &. s 70 .4 11.' 63. 9 84 .3 88A.5 913.? I 9..9 94.9 . 97 .3 9q.2 98 b 94.8 49.6Ir iOg 141 52.4 613.5 70.4. 11. ? ". 9 84.1 148.5 951. 7 94.4 9k.8 971.3 98.2 98.6, 94.8 110.0

(7 'I 24.3 52 .4 63).', 10.4 71' ? 43.9 84.1 88. 5 qI . 94.9 96A. 4 97?. 3 98.2 48.6 4.8 300.0

10 1 ALLIR rOSFRA10N b

610,181 L1398301069 'RANCH PERC[NTAGEFR 380UE4C1 Of OCCORPE NCE OF EFIL I-50 Vf 4SUS W101PI11TYUSAFL tY AC FROM HOUQEY ObSE9881108.SAIR WE AIHER SERVICEIMAE

$1; A 109 N UMPE R 0f332950 ST At ION NAME: ?It1,' RIX M P, - IU Of3 6't(O: 77-6..8MONTH: JUN. HOURSILSTI: 09330.-11co

L~ 11. VI SI RI L I T lIN STATUTF MILESIN. GE GE !E GE 1E G- GE GE GE Ii! G1 E I LIE r~ 1 6

FrE I I in t6 I Z 21;2 2 1 112 1 1/4 1 If% 5/8 i1

2 9/116 1/4 0

N0 CEl I 19.8 20.2 :b .? 7 29. 1 37 . I .I 33. 1.6 3S. 6 S6 .- I 5.8 S .9A 1 7.4 39.0 '.4.0 5F.0 3t.C

u r '0000 1 117.6 30. 1 12.3 is. 3 38.6. 39. 5 39.9 92.13 43.0 98.9 .4.9, 49 .', 9497 99.1 44 .3 99.%i.E 18000 1 17.6 IL. 1 32 .1 39. 3 In8.' b 9.95 39.9 92 . 3 93.0 of4.S 49.', 44 .' 44. 9 4.17 444. 7 4.1

LE 161tOn I T. 6 30. 1 32.1 9. 3s. i.-, 14. 5 39.9 .. 3 83.0 99.95 44 . , 44 . 5 44 7 4 7 44 . 44176FE 149IUgI 190 3011).4 3..5 3S.6 39. r 39. 9 80 .9 8f2.9 9 3.6 99. 1 4.3 45 .I 'S. 3 4-1. 4t 9. 3 '.03LG I , , or) Ih.? 3 1. ' 38 .] 38.0 41., 412.1 3 .2 49$.6 86 .9 91?.9 4 7.9 41 .9 49). 1 46.1 49A.1 3.I

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6L.013L CLIMAIOL0E.Y PQANCH1 PC WC EIT Gf FR QUE14C Y Of OCCURQEMI Of f 1713;,. VF RSUS VISlILITYUSAFH AC F ROM HOURLY OBSERVATIONSAIR Wt AiIIE $FRRVICI IAC

STATION1 1UP786: C 03:-, 5181 AT rNN AO zi

1rPI itl 71 N PEo103i Or VICOPO: 77-7A8.11-o6

11(71176 JUN HOURSII.$11: 12U9-l1400

F~~V S11111.Y 8111 I? N 51831131 MILLSI rEt 3) Sf v. r,) 1. IE GEC GE L E C[ G E GE GE GE 6E

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-4i

6LO1AL CLIMATOLOGY PRANCH PERCENIAGE FR OUENCY OF OCCURPENCE OF CEILING VERSUS VISIBILITY

uSAFETAC FROM HOU7LY OBSERVATIONS

AIR WAaTHER SERVICE/MAL

STAT11N NUMPLR: Uf1253 I8t I r NAME: 2IERIKZEO NL PEPIOU OF PECOPO: 77-84,86

MONTH: JUN HOURSILS): JSO-1700

CE IILING VISIBILITY IN STATUIE MILES

IN I C, F IA GE GE L.- GE G' G1 GE GL G GE GE GE GE

FfF I 10 5 3 2 112 112 1 1/4 1 1/4 3 /B 1/2 1/16 1/4 0

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101AL NUMLE 0Of UPSFVA IIONS: 0I8

GLOBAL CLIMAICLOGY BRANCH PERCENTAGE FR 7UENCY OF OCCUROENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOUILY OBSERVATIONS


STATION NUMBLR: 063250 STAT1ION NAME: ZIERIKZE NL PEPIQ0 OF RECORD: 77-86MONTH: JUN HOURSILSII: 1800-20OC

. .. . . ... .. , ..... ..... . .... .... .... .... ......, .. .. , .. ...... ,.....,.... ,. ..... ......... ...... ,..... .....

CE ..LI.G.VISIBILITY IN STATUTE MILLSIN GE GE SE GE GE G GE 05 GE GE rE OF GE GE GE GE

'LET I1 6 5 4 2 112 2 1 1/2 1 1/4 I 7/4 5/8 112 't/16 1/4 U

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NO CEIL 24. 1 34.0 39.7 36.2 38,1 38.6 38.8 39.7 39.7 39.9 39.9 39.9 39.9 39.9 39.9 39.9

uE 20000 31.7 46.3 47 , 49.N 51. 51.8 52.0 53.0 53.0 53.6 5.6 53.6 53.6 53.6 53.6 53.6GE

1lB

00 1 31. 7 96.3 4717 49.4 51.3 51.8 52.0 53.0 53.0 53.6 53.6 53.6 53.6 53.6 53.6 53.6

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GF 60001 39.9 59.3 61.2 64.1 66.5 68.5 69.3 70.9 70.9 71.4 71.4 71.4 71.4 71.4 71.4 71.4

lC 5001 41.3 62.2 64.1 67.4 70.5 72. 4 73.3 74.9 74.9 75.4 75.4 75.4 7S.4 75.4 75.4 75.4GE 4501 42.6 64. 65.0 69.3 72.4 74.4 75.2 76.8 76.8 77.3 77.3 77.3 77.3 77.3 77.3 77.3GE 4001 4i- 6 67.9 69.8 73.3 76.6 78.9 79.7 81.3 81.5 82.0 82.0 82.0 62,0 42.0 82.0 21 .0GE 35U0 1 *.4 71.8 73.7 77.1 80.4 82.7 83.5 85. 1 85.3 A5.8 85.8 9S.8 82 P5.6 85.8 85.86E 3000P 4., 72.3 74.2 77.6 80.9 83.2 84.1 85.6 85.8 96.3 96.1 96.3 86.3 R6.3 86.3 86.3

(E 2! JO 49.7 74.5 76.4 80.1 83.' 85.8 86.7 84.4 88.6 89.1 8Q.1 R9.1 49.1 A9.1 89.1 89.1GE 20001 50., 76.4 78.3 82.1 86.7 P8.2 89.1 90.8 91.0 91.5 91.5 91.5 91.5 91.5 91.5 91.5SE 16GII 51.3 77.6 73.5 83.4 87.? 89.4 90.3 92.0 92.2 92.7 92.7 92.7 92.7 92.7 92.7 92.7uF 15001 52.3 79.2 41.1 85.1 48.9 91.2 92.2 93. 9 l 4.1 94. 94.6 94.6 94.6 94.6 94.6 94.6GE IUO 1 52.7 79.7 81.6 85.b 69.4 91.9 92.9 94.8 95.1 95.7 95.7 95.7 95.7 95.7 95.7 95.7

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I 'u'I 52.7 90.2 ?.3 96.7 91.3 93. 8 95.1 97.2 983 99.5 99.7 99.7 99.8 99.4 99.8 49,8I' I ,7 p0.2 82.3 A6.7 91.9 93.8 95.1 97.2 98.3 99.5 99.7 99.7 99.8 99.8 99.8 100.0

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, ;i Of 2', IPvATIDN : 577

H'L

GLOtIAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSU5 VISIBILITY

USAFEYAC FROM HOURLY OASERVATIONS


STATION NUMBER: 063250 STATIVN NAME: ZIERIK7ES NL PERIOD OF QECORO: 77-74.8O-84,86MONTH: JUN HOURSILSYI: 2100-2300

IN i GE GE GE GE GE Gr GE GE GE GE GL GE GL GE GE GEFEET I 10 b 5 4 3 2 lf2 2 1 112 1 1/4 1 1/4 3/8 112 5/16 1/4 0........................................................................................................................................

NO CEIL I 18.7 31.8 33.9 34.3 37. 3 39.6 40.3 41.7 41.9 41.9 41.9 41.9 41.9 42.2 42.2 42.4

GE 20000 1 23.3 40.1 42.b 43.1 46.8 49.3 51.6 53.0 53.5 53.5 53.5 53.5 53.5 53.7 53.7 53.9GE 180001 73.3 40.1 42.6 43.1 46.2 49.3 51.6 53.0 53.5 53.5 53.5 53.5 53.5 53.7 53.7 53.9GE 16rL) 233 43.1 41.6 43.1 46.9 49.3 51.6 51.0 53.5 53.5 53.5 53. 5 51. 5 3,: 57.7 53.9GE 14'U70 23.3 0 2 9 4343.3 47.0 49.5 51.8 53.2 537 51.7 53.7 53.7 537 53.9 53.9 54.1GE 12!001 24.0 41.2 43.8 44.2 48.2 50.7 53.0 54.4 58.8 54.8 54.R 54.8 54.8 55.1 55.1 55.3

GE lOrOn 25.8 q5.2 48.6 49.1 53.2 56.0 58.5 60.1 60.6 60.6 6.6 60.6 60.6 60.8 60.8 61.1uE 93oe0 26.9 46.3 55.0 51.4 56.5 58.8 61.3 62.9 b3.4 63.4 63.4 63.4 61.4 63.6 63.6 63.8GE 83CO 28.1 49.3 53.2 55.1 59.9 62.9 65.7 67.3 67.7 67.7 67.7 67.7 67.7 68.0 68.0 68.2GE 75001 4.3 50.0 53.9 55.8 60.6 63.6 66.4 68.0 68.4 68.4 64.4 68.4 68.4 68.7 68.7 68.9GE 6(001 29.3 51.8 55.8 57.6 62.4 65. 4 68.2 69,8 70.3 70.3 70.3 70.3 70.3 70.5 70.5 70.7

GE 5(3001 32.0 56.7 63.8 62.7 67.9 70.5 73.3 74.9 75.3 75.3 7S.3 75.3 75.3 75.6 79.6 75.8LE 4'I01 34.8 60.8 b5.0 66.8 71.7 74.7 77.4 79.0 79.5 79.5 71.5 79.5 79.5 79.7 79.7 B.3

GE 43001 3.1 66.8 71 . 73.5 78.3 81.3 84.1 85.9 86.4 86.4 86.4 86.4 86.4 8b.6 86.6 e6.9G 35'0o 39.4 68.4 72.b 75.3 80, 83,2 86.2 88.0 88.5 88.5 5F.5 88.5 88.5 48.7 88.7 A8.9uL 3fO0l 45.1 73.0 79.4 77.0 81.4 84.8 87.8 89.6 90.1 90.1 90.1 90.1 90.1 90.3 90.3 90.6

GE 20ri 40.- 71.4 75.0 78.6 83.4 86.4 89.4 91.5 91.9 91.9 91.9 91.9 91.9 92.2 92.2 92.4OE 2 40 1 . n 71.9 75.7 79.3 84.3 87.3 90.3 92.4 92.9 92.9 92.9 92.9 92.9 93.1 93.1 93.3

G E IL*0 41.5 72.8 77.6 80.4 85.5

88.5 91.5 93.5 94.0 94.0 9.2 94.2 94.2 94.5 94.5 94.7GE 11!001 41.7 73.3 79.1 80.9 85.9 88.9 91.9 94.0 94.5 94.7 94.9 94.9 94.9 95.2 95.2 95.4Gf 1200 1 41. 7 73. 74.6 81.6 86.6 49.6 92.6 94.7 95.2 95.4 95.6 95.6 95.6 95.9 95.9 96.1

GE 100I 41.7 73.7 7 .A 81.8 87.1 90.1 93.1 95.2 95.6 95.9 96.1 96.1 96.1 96.3 96.3 96.5GE 901 41.7 73.7 78.8 81.8 87.1 9C.1 93.1 95.2 95.6 95.9 96.1 96.1 96.1 96.3 96.3 96.5

GE 900) 41.7 74.0 79.U 82.3 87.4 90.8 93.8 95.9 96.5 96.8 97.0 9 7

,o 97.0 97.2 97.2 97.5

GE 700) 41.7 74.2 79.3 82.5 88.31 91.0 94.0 96.3 97. 2 97.7 97.9 97.9 97.9 96.2 98.2 0B.41GE 601 41.7 74.2 73.3 82.7 88.5 91.5 94.5 96.8 97.7 98.2 98,9 98.4 98.4 98.6 98.6 98.8

GE 505) 41.7 74.7 79.3 82.7 88.5 91.7 94.7 97.0 97.9 98.4 9p.6 98.8 98.8 99.1 99.1 99.3,E OD1 4 1.7 74.2 79.3 82.9 88.9 92.2 95.2 97.5 98.4 99.1 9o.3 99.5 99.5 99.8 99.8 100.0

G E 30C1 41.7 74.2 79.3 '2.9 88.9 92.2 95.2 97.5 98.4 99.1 99.3 99.5 99.5 99.8 99.8 100.0GE ZOo) 41.7 74.2 79.3 82.9 88.9 92.2 95.2 97.5 98.4 99.1 90.3 99.5 99.5 99.8 99.8 100.0GE 10) 41.7 74.2 79.3 82.9 88.9 92.2 95.2 97.5 98.4 99.1 99.3 99.5 99.5 99.8 99. 100.0

GF n) 41.7 74.2 77.3 87.9 88.9 92.2 95.2 97.5 98.4 99.1 99.3 99.5 99.5 99.8 99.8 100.0

TOTAL NUMBLR Or ORSERVATI13NS: 438

GI05AL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSUS VISIBILITYUSAFETAC FROM HOUqLY OBSERVATIONSAIR WEATHER SERVICL/MAC

STATION NUMBER: 063250 STAIION NAME: ZIERIKZEE NL PEPIOD OF RECORO: 77-86

MONTH: JUN HOURSILSTI: ALL.... . ................................. ...................................................................................

CEILING VISIBILITY IN STATUTE MILESIN i rL GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET : 10 6 5 4 3 2 1t2 2 1 1/2 1 1/4 1 1/4 5/8 1/2 5/16 1/4 a

NO CE IL I 17.9 29.3 33.7 33.9 36.0 37. 3 37.7 39.3 39.9 40.5 40.6 90.6 93.7 40.9 4n.9 91 .1

GE 200001 21.3 36.0 37.9 NI.U 43.9 95.4 96.0 47.7 98.4 99.2 40. 3 49.4 49.5 49.6 49.6 49.9GE 180001 21.3 36.0 37.9 91.1 94.0 45.4 '46.0 47.8 49.4 49.2 49.4 49.4 99.5 49.6 49.7 49.9GE 160001 21.3 36.0 37.9 41.1 99.0 95.9 96.0 97.8 98.9 99.2 49.4 49.9 99.5 99.6 99.7 99.9GE 190001 21.9 36.2 3.1 91.3 49.1 95.6 96.3 98.0 99.7 49.4 40.6 99.7 99.8 49.9 99.9 50.1GE 120001 21.8 37.6 39.5 92.9 95.9 97.9 9 8.1 99.9 50.5 91.3 51.5 S1.5 51.6 51.7 51.9 52.0

GE 100001 23.9 91.4 93.8 97.9 51.3 53.0 53.8 55.6 56.3 57.1 57.1 57.9 57.5 57.7 57.7 58.0GE 9CDO 29.9 92.8 95.2 99.6 53.2 55.0 55.8 57.8 58.S 59.3 59.4 59.5 59.7 59.8 59.9 60.1GE 80001 25.5 45:0 97.6 52.9 56.1 58.1 59.0 61.0 61.8 62.6 67.8 62.9 63.0 63.2 63.2 63-5SE 70001 25.7 95.4 99.1 52.9 56-7 58.7 59.6 61.7 62.5 63.3 63.5 63.6 63.8 63.9 b4.0 64.3GE 60001 25.9 46.0 49.8 53.9 57.7 59.8 60.7 62.8 63.6 64.5 64.7 69.8 65.0 65.1 65.2 65.5

GE 50001 27.4 98.7 51.9 57.1 61.2 63.3 69.3 66.5 67.4 68.2 68.9 68.6 68.7 68.9 68.9 6s.2GE

4SuoI 28.5 50.9 S.3 59.3 63., 65.7 66.6 68.9 69.7 70.6 70.8 70.9 71.1 71.2 71.2 71.6

GE 90001 30.8 54.8 59.1 63.8 68.1 70.3 71.3 73.7 79.7 75.6 7.8 75.9 76.0 76.2 76.2 76.6&F 35001 32.1 56.8 63.3 66.1 70.5 72.8 73.8 76.2 77.1 79.0 78.2 78. 78.5 78.7 79.7 79.1GE 30001 33.1 58.6 62.2 68.1 72.6 19.9 75.9 78.3 79.9 80.3 80.5 80.7 80.8 A1.0 81.0 81.4

UE 25001 39.2 60.6 69.5 70.7 75.3 77.7 78.8 81.3 82.3 83.3 83.5 83.6 83.8 83.9 69.0 8.3GE 20001 35.9 63.5 67.5 74.0 78.9 81.3 82.5 85.0 86.0 97.0 87.2 87.9 87.5 87.7 87.7 88.0GE 18031 36.7 65.1 69.3 76.0 81.0 83.9 89.5 87.1 88.1 89.1 89.9 89.5 89.7 89.8 89.9 90.2GE 1500l 37.2 66.9 70.7 77.6 82.7 95.1 86.3 88.9 90.0 91.0 91.3 91.5 91.6 91.8 91.8 92.1GE 1200 37.7 67.3 71.9 78.9 89.2 86.7 87.9 90.7 91.8 92.9 97.2 93.9 93.6 93.7 93.7 99 .1

GE 1COO 37.7 67.5 72.1 79.3 89.6 87.1 88.3 91.2 92.3 93.5 93.9 99.0 94.1 99.3 94.3 99.6GE 9UOi 37.7 67.6 72.3 79.5 85.7 87.5 88.7 91.8 93.0 99.2 99.5 99.7 99.8 Q5,0 95.0 95.3GE 9001 37.7 67.7 72.5 8.a 85.6 88.9 89. 92.9 99.1 95.9 91.8 95.9 96.1 96.Z 96.2 96.6bF 7001 37.8 67.8 72.7 83.2 86.1 99.0 90.3 93.7 95.0 q6.4 96.7 96.9 97.2 97.3 97.3 97.7

SE 600I

37.8 67.8 72.7 80.9 86.9 899 90.7 99.3 95.7 97.1 97.5 97.7 97.9 98.0 99.1 96.9

GE 001 37.9 67.9 72.8 83.6 86.7 89.8 91.1 94.9 96.3 97.8 98.1 98.4 98.6 98.8 98.8 99.2GE 4601 37.8 67.9 72.9 80.8 86.9 90.0 92.3 95. 2 96.6 98.1 99.5 98.7 99.0 99.2 99.2 99.6GE 3001 37.8 67.9 72.9 80.8 86.9 90.0 91.9 95.2 96.7 98.3 98.7 98.9 99.z 99.9 99.5 99.8(E 2001 37.8 67.9 72.9 90.8 86.9 9C.0 91.9 95.2 96.7 98.3 9p.7 99.9 99.3 99.5 99.6 99.9GE 1001 37.8 67.9 72.9 80.8 86.9 90.0 91.9 95.2 96.7 98.3 98.7 98.9 99.3 99.5 99.6 100.0

GE 01 37.8 67.9 72.9 80.8 86.9 90.0 91.9 95.2 96.7 98.3 9A.7 98.9 99.3 99.5 99.6 100.0


Idig

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEr NL PERIOD OF RECORD: 80-86MONTH: JUL HOURS(LSTI: 0000-0200

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE G: GE GE GE GE GL GE GE GE GE GE

FEET I tO 6 5 4 k 2 112 2 1 1/2 1 1/4 1 3/4 5/8 112 5/16 1/4 0....................................................... o..........°........................................................

NO CElL 1 20.4 31.5 35.9 40.3 42.7 43.8 44.6 48.4 49.6 50.0 50.2 50.2 50.2 50.2 50.4 50.8

GE 200001 20.8 32.3 36.9 41.7 44.2 45.2 46.0 49.8 51.6 52.0 52.2 52.2 52.2 52.2 52.4 52.8GE I8o00 20.8 32.3 36.9 41.7 44.' 45.2 46.0 49.8 51.6 52.0 52.2 52.2 52.2 52.2 52.4 52.8UE 160001 20.8 32.3 34.9 41.7 44.2 45.2 46.0 49.8 51.6 52.0 5'.2 52.2 52.2 52.2 52.4 52.8GE 140G01 20.8 32.3 14.9 41.7 44.2 45.2 46.0 50.4 52.2 52.6 52.8 52.8 52.8 52.8 53.0 53.4GE 120001 20.8 32.5 37.1 41.9 44.4 45.4 46.2 50.8 52.6 53.0 S3.2 53.2 53.2 53.2 53.4 53.8

GE 100001 23.4 37.3 42.3 47.4 49.8 50.8 51.8 56.5 58.3 58.7 58.9 58.9 58.9 S8.9 59.1 59.5GE 90001 24.2 38.7 43.8 49.0 51.4 52.4 53.4 58.1 59.9 60.1 60.S 60.5 60.5 60.5 60.7 61.1

GE 80001 25.0 40.3 45.4 50.8 53.2 54.2 55.4 60.1 61.9 62.3 62.5 62.5 62.5 62.5 62.7 63.1GE 7T00 25.4 41.1 45.2 51.6 54.0 55.0 56.3 60.9 62.7 63.1 63.3 63.3 63.3 63.3 63.5 63.9GE 60001 25.8 41.7 .8 52.2 54.6 55.6 56.9 61.7 63.5 63., 64.1 64.1 64.1 64.1 64.3 64.7

GE 50001 27.2 43.6 49.0 54.6 57.1 58.1 59.7 64.5 66.3 66.7 66.9 66.9 66.9 66.9 67.1 67.5GE 45001 29.0 46.6 53.8 59.9 62.3 63.3 64.9 69.8 71.6 72.0 72.2 72.2 72.2 72.2 72.4 72.8GE 4o01 31.0 52.8 5S.5 64.5 66.9 67.9 69.6 74.6 76.4 76.8 77.0 77.0 77.0 77.0 77.2 77.6

bE 35001 32.4 54.8 63.5 66.5 69.2 7U.2 71.8 76.8 78.6 79.0 79.2 79.2 79.2 79.2 79.4 79.8GE 3001 34.5 57.9 63.5 69.8 72.4 73.4 75.0 80.0 81.9 82.5 87.7 82.7 82.7 A2.7 82.9 83.3

GE 25001 34.9 58.7 64.3 70.6 73.2 74.2 75.8 80.8 82.7 83.3 83.5 83.5 83.5 83.5 83.7 84.1

GE 20001 34.9 59.5 65.3 71.8 74.4 75.6 77.2 82.3 84.1 84.7 84.9 84.9 84.9 84.9 85.1 85.5GE 18001 34.9 59.9 65.9 72.b 75.4 76.6 78.2 83.3 85.1 85.7 85.9 85.9 85.9 85.9 86.1 86.5

GE 15001 35.7 61.7 68.1 75.0 78.0 79.6 81.5 86.5 88.3 88.9 80.1 89.1 89.1 89.1 89.3 89.7

GE 12001 35.9 62.7 69.2 76.8 79.8 81.5 83.3 88.3 90.1 90.7 90.9 90.9 90.9 00.9 91.1 91.5

GE 10001 35.9 63.5 7..6 78.6 81.7 83.3 85.1 90.1 91.9 92.5 92.7 92.7 92.7 92.7 92.9 93.3GE 90n 35.9 63.7 71.0 80.2 83.5 85.1 86.9 91.9 93.8 94.4 94.6 94.6 94.6 94.6 94.8 95.2GE 8001 36.1 64.1 71.4 80.8 84.3 86.1 88.3 93.5 95.4 96.2 96.4 96.4 96.4 96.4 96.6 97.0GE 7001 36.1 64.1 71.4 81.0 84.% 86.3 88.5 94.0 95.8 96.6 96.R 96.8 96.8 06.8 97.0 97.4

GE 6001 36.1 64.1 71.4 81.3 84.9 86.7 89.1 94.8 96.8 97.8 98.0 98.0 98.0 98.2 94.4 98.8

GE 5001 36.1 64.1 71.4 81. 3 84.9 86.7 89.1 94.8 96.8 97.8 99.0 98.0 98.0 98.2 98.4 98.8

GE 4001 36.1 64.1 71.4 81.3 84.9 86.9 89.3 95.2 97.2 98.4 99.6 98.6 98.6 98.8 99.0 99.4GE 3001 36.1 64.1 71.4 41.3 84.9 86.9 89.3 95.2 97.2 98.4 98.6 98.8 98.8 99.0 99.2 99.6GE 2001 36.1 64.1 71.4 81.3 84.9 86.9 89.3 95.2 97.2 98.4 99.6 98.8 99.2 99.4 99.6 100.0GE IO1 36.1 64.1 71.4 81.3 84.9 86.9 89.3 95.2 97.2 98.4 94.6 98.8 99.2 99.4 99.6 100.0

E 01 36.1 64.1 71.4 81.3 84.9 86.9 89.3 95.2 97.2 98.4 98-.6 98.8 99.2 99.4 99.6 100.0


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPENCE OF CEILING VFRSUS VISIBILITY

UsAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: U63253 STATION NAMES ZIELRKZE NL PEQIO0 OF RECORD: 80-86MnNYH: JUL HOURSfLST): 0300-0500

.. .. .. .. .. .. .. .. ... . . . . . . . . . . . .. . . . . . . . . . . .......................... •..... ................


IN r OE GE GE GE GE Gr GE GE GE GE GL GE GE GE GE GEFEET I 10 6 5 4 3 2 112 2 1 1/2 1 1/N I 3/4 5/8 1/2 " 16 I/4 0

NO CEIL I 13.0 22.4 23.7 28.4 31.5 33.1 34.0 35.6 36.8 39.5 39.9 39.9 40.5 40.9 4n.9 41.6

GE 2G0UO1 14.2 25.9 27.2 31.9 35.2 37.0 37.9 39.9 41.2 44.4 45.3 45.3 4S.9 4b.3 46.3 4b.9

GE 180001 14.2 25.9 27.2 31.9 35.2 37.0 37.9 39.9 41.2 44.4 45.' 45.3 45.9 46.3 46.3 46.9GE 160001 14.2 25.9 27.2 31.9 35.2 37.0 37.9 39.9 41.2 44.4 45.3 45.3 45.9 46.3 4t.3 46-9

GE 14001 1.2 25.9 27.2 31.9 35.7 37.0 37.9 39.9 41.2 44.4 45.3 45.3 45.9 46.3 46.3 46.9

GE 1201001 14.2 25.9 27.2 31.9 35.2 37.2 38.1 40.3 41.6 44.9 46.7 45.7 46.5 46.9 46.9 47.5

GE 100001 16.3 30.0 31.3 36.0 39.5 41.8 42.6 45.1 46.3 49.8 5n.6 60.6 51.4 L.9 51.9 52.SGE 90001 16.5 31.7 33.1 38.1 41.8 44.0 44.9 47.3 49.6 52.1 52.9 62.9 53.7 54.1 54.1 54.7GE 80001 17.7 33.7 35.2 40.3 44.0 46.3 47.1 49.8 51.0 S4.5 65.3 55.3 56.2 q6.6 56.6 57.2GE 70001 18.3 34.4 35.8 40.9 44.7 46.9 47.7 50.4 51.6 55.1 56.0 56.

0 56.8 7.2 67.2 67.8

6E b001 18.7 35.0 35.4 41.6 45.5 47.7 49.0 51.6 52.9 56.4 57.2 67.2 58.0 58.4 5R.4 59.1

GE 50001 19.5 36.0 37.7 43.2 47.1 49.4 50.6 53.3 54.5 58.0 69.8 58.8 59.7 60.1 60.1 60.7GE 45001 21.4 38.9 43.5 46.1 50.2 52.7 53.9 56.8 58.0 61.5 62.3 62.3 63.2 63.6 69.6 64.2

GE 40001 24.3 44.4 45.3 52.3 56.6 69.1 60.3 63.2 64.4 67.9 68.7 68.7 69.5 70.0 70.0 70.6GE 35001 25.3 46.3 48.1 54.3 58.6 61.1 62.3 65.2 66-5 70.0 70.9 70.8 71.6 72.0 72.0 72.6

GE 301D 27.2 49.0 53.8 57.0 61.' 64.0 65.2 68.1 69.3 72.8 7T.7 73.7 74.5 74.9 74.9 75.5

GE 2501 27.6 5.U 51.9 58.0 62.6 65.0 66.5 69.5 70.8 74.3 76.1 75.1 75.9 76.3 76.3 77.0,E 2000 29.0 51.9 53.7 60.1 65.0 67.5 68.9 72.0 73.3 76.7 77.6 77.6 78.4 78.8 78.8 79.4GE 18U0 29.4 62.9 59.9 61.5 66.% 68.9 70.6 73.7 74.9 78.4 79.2 79.2 80.0 80.5 80.5 81.1GE 15001 30.0 56.2 53.8 65.4 70.4 73.3 74.7 77.8 79.0 82.5 83.3 83.3 84.2 84.6 84.6 85.2GE 12001 30.9 ,7.6 63.3 67.1 72.0 74.7 76.3 79.4 80.7 84.2 86.n 85.0 85.8 86.2 86.2 86.8

GE IrOO 1 30.9 58.6 61 * 3 68.5 73.5 76.1 77.8 81.1 82.3 85.8 86.6 86.6 87.4 F7.9 87.9 88.5GE 9001 30.9 59.9 62.6 70.0 75., 78.4 80.0 83.5 84.8 88.3 89.1 89.1 89.9 90.3 90.3 90.9.E 8001 30.9 60.5 63.2 71.2 76.7 79.8 81.5 85.0 86.4 89.9 90.7 90.7 91.6 Q2.0 92.0 92.6

6E 7001 30.9 60.9 64.3 72.4 78.? 81.3 83.3 87.0 89.5 q2.4 93.2 93.2 94.0 94.4 94.4 95.1

GE 60n1 30.9 60.9 64.5 72.4 78.4 81.7 84.0 88.5 90.3 94.4 9,.3 95.3 96.1 96.5 96.5 97.1

GE 5001 30.9 60.9 64.0 72.4 74.4 81.7 84.0 88.7 90.5 94.7 95.5 95.5 96.3 96.7 96.7 97.3

GE 4001 30.9 61.1 64.2 72.6 78.6 82.3 84.6 q9.5 91.4 95.5 96.3 96.3 97.3 97.7 97.7 98.4E 300l 330.9 61.1 64.2 72.6 78.6 82.3 84.6 89.5 91.4 95.5 96.3 96.5 97.7 98.4 98.4 99.

0GE 2001 30.9 61.1 64.2 72.6 78.6 82.3 84.6 89.5 91.4 95.5 96.3 96.5 97.7 98.6 98.8 99.8GE 1001 30.9 61.1 64.2 72.b 78.6 82.3 84.6 89.5 91.4 45.5 96.3 96.5 97.7 98.6 98.8 99.8

GE al 30.9 61.1 69.2 72.6 78.5 82.3 84.6 89.5 91.4 95.5 96.3 96.5 97.7 98.6 98.8 100.0

..... ... . ................................................................................ .........................................

iOTAL NUMRER OF OBSERVATIONS: 486

-4e n m m. Si uuum

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYuSAFEAC FROM HOURLY OBSERVATIONS


STATICN NUMBER: 063250 STATION NAME. ZIERIZE- NL PERIOD OF RECORD: 77-74,80-86MONTH: JUL HOURS(LST): 0600-08C0

CEILING VISIBILITY IN STATUTE MILLS

IN GE GE OE G E GE G GE GC GE GE E GEL GE GE GL GEFEET I O 6 5 4 1 2 112 2 1 1/2 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0

NO CEIL 10.1 16.1 19.1 20.0 22.1 24.3 25.2 28.2 30.0 31.1 31.7 32.8 33.3 33.6 33.6 33.8

GE 20000 11.2 19.2 21.3 23.5 25.5 27.8 28.9 32.2 33.9 35.8 36.1 37.5 39.3 38.6 38.6 38.8GE 180001 11.2 19.2 21.3 23.5 25.6 27.8 28.9 32.2 33.9 35.8 36.1 37.5 38.3 38.6 38.6 38.8GE 1600 I 11.2 19.2 21.3 23.5 25.F 27.8 28.9 32.2 33.9 35.8 36.1 37.5 38.3 38.6 38.6 38.8GE 1WOO1 11.2 19.2 21.3 23.5 25.6 27.8 28.9 32.2 33.9 35.8 36.1 37.5 38.3 39.0 39.0 39.1GE 12000 11.4 19.6 21.8 24.0 26.3 28.5 29.7 33.0 34.7 36.b 37.1 38.S 39.3 40.1 40.1 40.2

bE 10000 12.6 24.8 27.3 29.7 32.6 35.2 36.4 39.9 42.6 44.6 45.1 46.7 47.6 48.4 48.4 48.6GE 9r001 13.4 27.3 33.3 32.6 35.6 18. 3 39.6 43.2 45.9 47.9 48.6 50.2 51.1 51.9 51.9 52.1GE 8oo 13.9 29.3 32.3 75.3 38.6 41.2 42.4 46.1 48.7 50.9 51.6 53.2 54.1 54.9 54.9 55.0,E 7000 I14.0 29.7 32.6 35.8 39.4 42.0 43.2 46.8 49.5 51.7 52.4 53.9 54.9 55.7 55.7 55.8GE 60001 14.2 29.8 32.8 36.3 39.9 42.4 43.7 47.3 50.3 52.5 53.2 54.7 66.7 56.5 56.5 56.b

GE 50001 15.9 32.3 35.5 39.0 42.7 45.4 46.7 50.6 53.6 55.8 56.5 58.0 59.0 59.8 50.8 59.9GE 45001 16.9 35.0 39.3 42.1 46.9 49.2 50.5 54.4 57.4 59.6 60.3 61.8 62.8 63.6 63.6 63.7GE 40001 19.4 39.7 43.4 47.6 51.9 54.7 56.0 60.1 63.1 65.3 65.9 67.5 68.5 69.2 69.2 69.4GE 35001 21.1 42.U 45.6 60.2 54.7 57.7 59.0 63.1 b6.1 68.3 68.9 70.5 71.5 72.2 72.2 72.4GE 30001 22.6 44.2 47.8 52.5 57.4 60.4 61.7 65.8 68.8 71.0 71.6 73.2 74.1 74.9 74.9 75.1

GE 2500 23.0 45.6 49.4 54.1 59.2 62.0 63.2 67.5 70.7 72.9 73.5 76.1 76.2 76.8 76.8 77.0bE 20GO 24.3 48.1 51.9 56.6 61.8 66.0 66.4 71.0 74.1 76.3 77.0 78.5 79.7 8O.4 80.4 80.6SE 18001 25.6 50.3 5.1 58.8 64.0 67.2 88.6 73.2 76.3 78.5 79.2 80.8 81.9 82.6 82.6 82.8IE 15001 26.2 52.4 56.2 61.8 67.5 70.8 72.2 77.1 80.3 82.5 83.1 84.7 85.8 86.6 86.6 86.8bE 12o0l 26.5 53.9 57.7 63.9 69.7 73.3 74.8 79.8 83.0 45.2 8.8 87.4 88.5 99.3 89.3 89.4

GE IO01 26.5 5.7 S9.7 64.8 70.8 74.4 75.9 81.2 84.5 86.8 87.4 89.0 93.1 90.9 90.9 91.0GE 9SOo 26.5 55.4 59.5 65.6 71.6 75.2 76.7 82.0 85.3 47.5 89.2 89.9 91.0 91.8 91.8 92.0E q01 26.5 55.7 59.9 66.6 72.6 76.2 78.2 83.8 87.4 89.6 90.2 02.0 93.1 93.8 93.8 94.0

GE 7001 26. 5 55.7 59.9 66.9 73.T 77.0 79.3 85.D 88.6 90.9 91.5 93.2 94.3 95.3 95.3 15.4GE 6001 26.5 55.8 63.1 67.0 73.9 77. 4 80.0 85.8 89.4 91.8 92.7 94.5 95.6 96.6 96.5 96.7

GE 5OI 26.5 55.8 62.1 67.4 74.3 78. 1 80.6 86. 4 90.1 92.4 93.4 95.1 96.2 97.2 97.2 97.3GE 4001 26.S 55.8 62.1 67.7 74.2 78.7 81.4 87.2 90.9 93.2 94.2 95.9 97.2 98.1 98.1 98.4UE 3001 26.5 55.8 62.1 67.1 74. 78.7 81.4 87.2 90.9 93.2 94.2 96.2 97.5 98.7 98.7 99.1SE 2001 26.5 55-8 63.1 67.7 74.9 78.7 81.4 87.2 90.9 93.2 94.2 96.2 97.5 99.2 99.2 100.0GE 1301 26.5 55.8 60.1 67.7 74.q 78.7 81.4 87.2 90.9 *93.2 94.2 96.2 97.5 99.2 99.2 100.0

GF 01 26.5 S5.8 62.1 67.7 74.8 78.7 81.4 87.2 90.9 93.2 94.2 96.2 97.5 99.2 99.2 100.0

TOTAL NUMRER OF OBSERVATIONS: 634

• L.

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE 0F CEILING VERSUS VISIBILITY



STATION NUMBER: 063253 STATION NAME: ZIERIKZEE NL PLQIO OF RECORD: 77-78o80-86MONTH: JUL HOURSILSTI: 0900-1100

...........................................................................................................................CEILING VISIBILITY IN STATUTF MILES

IN I L GE GE GE G GE GE E GE E GE GE GE GE GE GEFELT f 10 6 q 3 2 1/2 2 1 112 I I/4 l Y/4 5/8 1/2 "/b 1/8 0

NO CEIL I 13.5 21.2 23.7 27.6 29.9 31.1 33.7 34.9 35.8 35.5 3N.7 35.7 35.7 35.7 35.7 35.7

GE 20000 15.1 24.2 25.8 31.6 38.U 35. 2 38.2 39.6 80.5 4O.6 40.8 4O.8 80.8 80.8 0.8 40.AGE 180001 IS. 1 24.2 26.8 31.6 34.0 35.2 38.2 39.6 80.5 4O.6 80.8 4O.8 40.8 41.8 80.8 80.8

GE 160001 15.1 2q.2 26.8 31.6 34.' 35.2 38.2 39.6 80.5 40.6 4C.8 40.8 N0.8 80.8 80.8 40.8GE 14(001 15.1 24.2 26.8 31.6 34.2 35.8 38.3 39.8 NO.6 N0.8 81.0 81.0 81.1 81.1 81.1 81.1

GE 120001 15.3 28.5 27.1 32.2 38.Q 36.0 39.1 NO.6 81.8 41.8 82.1 82.1 82.3 82.3 N2.T 82.3

bE 100001 17.4 29.9 32.9 38.5 41.8 82.8 86.1 87.5 88.5 49.0 89.7 89.8 SO. SO.2 50.2 50.2GE 90001 18.3 32.9 36.2 81.8 88.7 86.1 89.3 51.0 52.0 52.6 ST.3 53.5 53.8 53.8 S1.8 53.8

GE 83001 18.8 38.9 38.7 88.2 87.2 88.5 52.0 53.8 58.8 55.8 56.4 56.6 56.9 56.9 56.9 56.9GE 70001 19.1 35.7 39.6 45.6 N8.5 49.8 53.3 55.1 56.1 56.7 57.7 51.9 58.2 58.2 58.2 58.2

GE 60001 19.8 36.0 83.0 8S.9 88.8 50.2 53.6 55.4 56.6 57.2 58.2 58.4 58.7 58.7 58.7 58.7

GE 50001 20.6 37.5 81.8 87.5 50. 52.3 55.8 57.7 59.0 59.7 69.7 60.9 61.2 61.2 61.2 61.2

GE 450f) 2t.5 39.0 43.1 49.2 52.5 58.1 57.6 59.5 61.0 61.7 62.7 62.8 63.2 63.2 63.2 63.2bE 80001 28.8 48.2 88.5 58.8 58.1 59-7 63.2 65.3 66.8 67.6 61.6 68.8 69.1 69.1 69.1 69.1GE 5ool 26.2 86.8 51.0 57.8 60.7 62.5 66.0 68.1 69.7 70.3 71.7 71.9 72.2 72.2 72.2 72.2

GE 30001 27.8 50.2 58.8 61.5 65.0 66.8 70.2 72.8 78.0 75.0 76.0 76.2 76.5 76.5 76.5 76.5

.E 2,,OO1 28.8 53.1 57.7 68.b 68.4 70.2 73.7 76.2 78.0 78.9 79.9 80.1 80.8 80.8 80.8 80.8GE 20001 30.6 55.9 63.5

67.6 71.5 73.8 76.8 79.8 81.3 82.8 83.8 83.6 83.9 83.9 83.9 83.9

GE AU001 30,6 57.8 62.C 69.2 73.8 75.3 78.9 81.7 83.6 88.7 85.7 R5.9 86.2 86.2 8b.2 86.2

GE 15001 31.7 0.5 65.1 72.9 77.0 79.1 82.7 85.9 87.7 88.8 89.8 90.0 90.3 90.3 90.3 90.3GE 12001 32.6 61.b 67.1 7S.0 79.1 81.3 85.0 88.2 90.1 91.3 92. 92.6 92.9 92.9 97.9 92.9

GC 10001 32.6 62.0 67.8 75.3 79.8 81.6 85.4 88. 7 90.6 91.9 97.1 93.3 93.6 93.6 93.6 93.6GE 9001 32.6 62.2 67.6 76.0 80. 1 82.2 86.0 89.3 91.3 92.6 93.8 93.9 94.2 98.2 98.2 94.2

5E 8001 32.6 62.2 67.9 76.6 81.1 83.8 87.5 91.0 92.9 98.8 95.6 95.7 96.1 96.1 96.1 96.1GE 7001 32.6 62.2 68.1 77.1 81.7 88.0 88.2 91.6 93.6 95.

1 96.4 96.5 96.9 96.9 96.9 96.9

uE 6001 32.6 62.3 6?.3 77.6 82.7 85.8 89.6 93.1 95.1 95.9 9P.2 98.5 98.8 98.8 98.8 98.8

bE 5U01 32.6 02.3 68.3 77.8 83.1 85.7 90.1 93.6 95.6 97.8 98.7 99.0 99.3 99.3 99.3 99.3GE 1001 32.6 62.3 68.3 78.U 83.2 85.9 90.3 93.8 95.7 97.5 99.0 99.3 99.7 99.7 99.7 99.7

GE 3001 32.6 62.3 68.3 78.0 83.2 85.9 90.3 93.8 95.7 97.5 99.2 99.5 99.8 99.8 99.8 99.8IF ?001 32.6 62.3 68.3 78.0 83.2 85.9 90.3 93.8 95.7 97.5 99.2 99.5 99.8 99.8 100.0 100.UGE TOr 32.6 62 .3 69-.3 78.0 83.2 85.9 90.3 93.8 95.7 97.5 99.2 99.S 99.8 99.8 100.0 100.0

GE n1 32.6 62.3 68.3 78.0 83.2 85.9 90.3 93.8 95.7 97.5 99.2 99.5 99.8 99.8 100.0 100.0

TOTAL NUMBER OF OnSERVATIONS: 608

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FR:QUENCY OF OCCURPENCE OF CEILING VFRSUS VISIBILITYuSAFETAC FROM HOURLY OBSERVAIIONS

ATM WEATHER SERVICE/MAC

STATION NUMBER: U63253 STATION NAME: ZIFAIkZE NL PERIOD OF RECORD: 77-78,80-86MONTH: JUL HOURSILSTI: 1200 -1400

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE CE GE GE GE GE GE GE GE G GL GE GE GE

FEET I 10 b 5 4 3 2 12 2 1 1/2 1 1/4 1 3/4 ,/8 112 W11 1/4 0

NO CEIL 1 15.6 25.2 27.6 32.4 35.2 36.4 37.3 37.7 37.8 78.0 3A.0 38.0 38.3 38.0 3s.0 '.0

GE 2C0001 14.1 31.2 34.6 40.1 43.5 45.1 46.3 46.9 47.1 47.4 47.4 47.4 47.4 47.4 47.4 47.4bF 180001 1A.1 31.2 34.6 40.1 43.5 45.1 46.3 46.9 47.1 47.4 47.4 47.4 47.4 47.4 47.4 47.4GE 160001 18.1 31.2 34.6 40.1 43.5 45.1 46.3 46.9 47.1 47.4 47.4 47.4 47.4 47.4 47.4 47.4GE 19 '001 48.1 31.2 34 7 40.3 43.7 45.2 46.5 47.1 47.2 47.6 47.5 47.6 47.5 47.6 47.6 47.5GE 12001 14.1 31.5 35.0 40.9 44.3 4S.B 47.1 47.7 47.8 44.1 43.5 44.6 48.6 '4.6 48.6 48.6

&E 100001 21.3 37.3 4).9 46.9 50.6 52.3 53.5 64.5 64.6 54.9 66.2 S5.4 55.4 55.4 5.4 5.4GE 90001 22.2 39.4 43.1 49.4 52.9 54.9 56.2 57.1 57.3 57.7 5.0 68.2 58.2 58.2 68.2 58.2GE 0001 22.8 4.8 45.R 52.5 56.0 58.0 59.3 60.2 60.3 61.0 61.3 61.4 61.4 61.4 61.4 61.4GE 70001 23.3 43.1 47.2 54.2 57.7 59.7 61.0 61.9 62.0 62.7 b3.0 63.1 63.1 63.1 63.1 63.1GE 60001 23.6 43.5 47.7 54.6 58.3 60.3 61.6 62.7 62.8 63.4 63.7 63.9 63.9 63.9 63.9 63.9

GE 50001 26.6 46.0 50.5 57.6 61.1 63.3 64.5 65.6 65.7 66.4 66.7 66.8 66.8 66.8 66.8 66.85E 45001 27.9 49.-4 53.9 61.0 64.7 66.7 67.9 69.0 69.1 69.8 70.1 70.2 70.2 70.2 70.2 70.2GE 4C31 30.2 64.0 59.5 65.9 69.6 71.6 72.8 73.9 74.1 7N.? 75.0 75.2 75.2 75.2 76.2 75.2

GE 3S301 31.9 57.4 62.2 69.8 73.6 75.6 77.0 78.1 78.2 78.9 79.2 79.3 79.3 79.3 79.3 79.3bE 30009 34.0 60.8 66.6 73.3 77.2 79.2 80.6 BI.6 81. 8 .4 877 42.9 82.9 82.9 87.9 82.9

GE 2500 36.3 64.5 69.3 77.8 4.4 93.4 46.2 46.3 86.6 87.2 87.5 47.7 87.7 97.7 47.7 47.7GE 2000 38.4 67.4 72.7 Pi.3 B5.3 87.3 44.7 49.6 90.3 90.9 91.2 91.N 91.4 91.5 91.5 91.5E 001 39." 69.3 74.2 43.0 87.7 89.0 90.4 91.5 92.1 92.7 93.1 93.2 93.4 93.4 93.4 93.4

GE 100I1 39.5 7D.8 75.9 45.0 89.3 91.2 92.6 93. l 94.4 95.1 95.4 95.5 95.7 95.7 95.7 95.7(,E 12031 39.7 71.3 75.5 86.1 90.1 92.3 93.8 95.1 95.7 96.3 96.6 96.8 96.9 96.9 96.9 96.9

GE 10001 39.7 71.6 76.7 46.4 90.6 92.7 94.3 95.7 96.3 96.9 97.Z 97.4 97.5 97.5 97.5 97.5(, 9001 39.7 71.6 76.9 86.6 90.7 92.9 94.4 96.3 96.9 97.5 97.8 98.0 94.1 98.1 94.1 98.1

6E au01 39.7 71.6 76.9 86.6 90.9 93.1 94.9 96.5 97.1 97.7 94.0 98.1 98.3 98.3 98.3 98.3GE 7on1 39.7 71.8 77.u 86.7 91.j 93.2 95.1 96.8 97.5 98.1 99.5 94.6 98.8 98.8 98.8 98.8uE 6001 39.7 71.4 77.3 87.0 91.4 93.5 95.4 97.2 98.0 98.6 9.9 99.1 99.2 99.2 99.2 99.2

GE 6001 39.7 71.8 77.3 87.2 91.5 93.4 95.7 97.5 98.3 98.9 99.2 99.4 99.5 99.5 99.5 99.5GE 4001 39.7 71.8 77.3 87.2 91.7 94.0 9s.B 97.7 98.s 99.1 99.4 99.5 99.7 99.7 99.7 99.7GE 3001 39.7 71.8 77.3 47.2 91.7 94. 3 96.1 98.0 94.8 99.4 99.7 99.8 100.0 100.0 110.0 130.0GE 2001 39.7 71.8 77.3 47.2 91.7 94.3 96.1 98.0 98.8 99.4 99.7 99.8 100.3 100.0 100.0 100.0GE 1001 39.7 71.8 77.3 '7.2 91.7 94.3 96.1 98.0 98.8 99.4 99.7 99.8 130.0 100.0 100.0 100.0

GE 01 39.7 71.8 77.3 87.2 91.7 94.3 96.1 98.0 98.4 99.4 99.7 99.8 100.0 100.0 100.0 100.0.. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . ...... . ... . .. . . .. . . ..... .°... .. . .....

TOTAL NUMPLR OF OSERVATN114S: 648

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 0632S0 STATIIN NAME: ZIERIKZEE NL PEPIOO OF PECORD: 77-79.80-86MONTH: JUL HOURSILSTI: 1500-1700

IN I GE GE PE GE GE G: GE GE GE GE GL GE GE GE GE GEFELT 10 6 5 4 3 2 112 2 1 1/2 1 1/9 1 3/4 5/8 12 51/16 1/N 0

NO CEIL 1 18.9 33.' 34.5 37.6 40.? 41.9 42.2 42.9 42.9 43.1 44.1 43.1 '3.1 43.1 43.1 43.1

GE 200001 23.2 '4.U 42.2 46.0 48.7 50.4 51.1 52.3 52.6 52.8 52.8 52.8 52.8 52.8 52.8 52.8GE I SCCC 3.2 40.0 42 .2 96.0 48.7 50.4 51.1 52.3 52.6 52.8 52.8 52.8 52.8 52.8 52.8 52.8.F 160031 23.2 40.O 42.2 46.0 48.7 50.4 51.1 52.3 52.6 52.8 52.8 52.8 52.8 52.8 52.8 52.8

GE 14OCO 2 3. 2 4J.4 42.b 4b6.5 49.2 51.1 51.8 53.0 53.3 53.5 5.5 53.5 53.5 53.5 53.5 53.5GE 123C0 23.7 40.9 43.1 47.0 49.9 51.8 52.5 53.7 54.0 54.Z 54.2 54.2 S4.2 5'4.2 54.2 54.2

GE luobnI 27.1 46.5 4?.1 53.3 56.Z 58.4 59.1 60.3 60.6 60.8 61.0 61,.0 61.0 61.0 61.0 61.0GE 90001 28.3 '48.4 51.4 55.9 58.9 61.2 61.8 63.0 63.4 63.5 61.9 63.9 63.9 63.9 6b.9 63.9GE 80001 31.2 53.7 57.1 61.5 64.6 67. 1 61.8 69.5 70.0 70.2 70.5 70.5 70.5 70.5 70.5 70.5GE 7CUOI 31.5 54.2 57.6 62.5 65.6 68.1 68.8 70.5 71.0 71.2 71.6 71.6 71.6 71.6 71.6 71.6GE bOO0 31.9 54.9 58.3 63.4 66.8 69.5 70.4 72.2 72.7 72.9 73.3 73.3 73.3 73.3 73.3 73.3

GE 5900 33.6 57.2 61.8 66.1 69.5 72.2 73.1 75.1 75.6 75.8 7f.1 76.1 76.1 76.1 76.1 76.1GC 4 001 35.9 60.5 64 .1 69.3 72.7 75.5 76.3 78.4 78.9 79.0 70.4 79.4 79.6 79.6 79.6 79.6GE 40001 38.7 65.6 b9.2 74.4 78.0 80.9 81.8 83.8 844.3 F'4 .5 84 .8 84.8 85.0 85.0 6.0 8S.0

GE 330 440.0 67.5 71.2 76.8 80.6 83.8 89.7 86.7 87.2 97.4 87.7 R7.7 87.9 87.9 87.9 17.9GE 3"00I 41.9 71.2 75.0 81.1 84.8 88.2 89.1 91.1 91.7 91.8 97.2 92.2 92.3 92.3 92.3 92.13

GE 25001 42.6 72.2 7.U 82.8 86.5 89.9 90.8 92.8 93.4 93.5 93.9 93.9 94.0 94.0 94.0

94.0GE 2000 '44.0 73.9 77.9 8'4.7 88.4 91.8 92.7 944.7 95.2 95.4 9' 7 95.7 95.9 95.9 95.9 95.9GE 1p00 44. 5 75.0 73.9 85.7 89.4 92.8 93.7 95.7 96.3 96.4 96.8 q6.8 96.9 96.9 96.9 96.9GE 15001 44.5 75.6 79.6 86.9 90.1 93.5 99.5 96.6 97.1 97.3 97.6 97.6 97.8 97.8 97.8 97.8bE 12(l 1 944.5 76.U 80.2 87.2 91.0 94.4 95.4 97.4 98.0 "8.1 98.5 98.5 98.6 98.6 98.6 98.6

GE IEOO 4444.5 76.1 83.4 7.4 91.3 944.7 95.7 97.8 98.3 98.5 98.8 98.8 99.0 99.0 99.0 99.0GE 9001 44.S 76.1 87).4 87.4 91.3 944.? 95.7 97.8 98.3 98.5 98.8 98.8 99.0 99.0 99.0 99.bE 8001 944.5 76.1 83.4 87.6 91.5 94.9 95.9 98.0 98.5 98.6 99.0 99.0 99.1 99.1 99.1 99.1GE 7C '44.5 76.1 831.4 87.6 9.0 95.4 96.4 98.5 99.0 99.1 99.5 99.5 99.7 99.7 99.7 99.7

GE 6001 44.5 76.1 83.9 87.6 92.T 9S.4 96.9 98.5 99.0 99.1 99.5 99.5 99.7 99.7 99.7 99.7

GE 5001 944.5 b.1 83.4 R7.6 92.u 95.9 96.4 98.5 99.0 99.1 99.5 99.5 99.7 99.7 99.7 99.7

cF 9J01 444.5 76.1 do .4 87.6 92.0 95.9 96.4 98.5 99.0 99.1 99.5 99.7 99.8 99.8 99.8 99.8G 3001 449.5 76.1 83.4 87.6 92.0 95. 4 96.9 98.5 99.1 99.3 99.7 99.8 100.0 100.0 100.0 100.0GE 2001 44.5 76.1 81.4 87.6 92.0 95.44 96.4 98.5 99.1 99.3 9Q.7 99.8 100.U 100.0 100.0 100.0GE 1001 449.5 76.1 81.4 87.6 92. ! 95.4 96.4 98.5 99.1 99.3 99.7 99.8 100.0 100.0 100.0 100.0

TOTAL NUM9ER OF OBSERVATIONS: 587

GLOUAL CLIMATOLOGY BRANCH PEkCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VFRSUS VISIBILITY4ISAFETAC FROM HOU4LY OBSERVATIONSAIR WEATHER bERVICE/MAC

STATION NUMOER: 0632950 STATION NAME: ZIERIKZE- NL P(QIOU OF PECORD: 77-66

MONTH: JUL HOURSILSTI: IM0'-2300

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE Gr GE GE GE GE GE GE GE GE , 1 SE

FEET I Il 6 5 4 3 2 1;2 2 1 112 1 1/4 1 3/4 5/8 1/2 /I6 1/4 U

NO CEIL 1 24.2 37.9 39.4 42.6 44.4 95.0 45.3 46.5 N6.8 47.1 47.1 47.1 47.1 47.1 47.1 47.1

SE 20000 29.3 45.3 47.1 50.8 52.9 53.9 54.4 56.2 56.6 56.9 5f.9 s6.9 57.1 c7.1 57.1 S7.1GE 18000 29.3 45.3 47.1 90.8 52.9 53.9 54.q 56.2 56.6 56.9 56.9 56.9 57.1 57.1

5 7.I !,7.1

fE 16r0U 29.3 45.3 47.1 5O.8 52.9 93.9 54.4 56.2 56.6 56.9 56.9 56.9 57.1 57.1 57.1 7.IUE lo001 29.3 95.3 47.1 53.8 52.9 53.9 54.4 56.2 56.8 57.1 57.1 57.1 57.3 57.3 57.3 57.3uE 120001 29.9 46.2 49.0 51.8 54.1 5.3 95.7 97.6 58.2 598.5 0 .5 9.9 58.6 58.6 58.6 98.6

uF 100001 32.3 52.1 54.5 59.1 61.3 62.5 63.0 64.8 65.4 657 65.7 65.7 66.0 66.0 66.0 Eb.0UE 9n00 33.2 44. 56.8 61.5 63.9 65.1 69.6 67.4 68.0 68.3 6.3 68.3 68.6 68.6 b6.6 68 bGF 800 34.6 58.2 63.7 65.7 68.4 69.6 70.1 72.4 73.1 73.4 73.4 73.4 73.7 73.7 73.7 73.7SE 70001 35.5 59.1 61.8 66.8 69.5 70.7 71.1 73.4 74.2 74.5 74.5 74.5 74.8 74.8 74.8 74.8GE 60O01 36.0 59.8 62.8 67.8 70.7 71.9 72.4 74.6 75.4 75.8 7'.R 75.8 76.1 76.1 76.1 7b.i

SE 5nf0 37.9 62.2 65.3 73.7 73.6 74.8 75.2 77.6 78.5 79.2 79.2 79.2 79.5 79.5 79.5 79.5LE 45,00 39.3 63-7 66.9 72.5 7s.9 76.7 77.2 79.6 80.5 81.1 81.1 81.1 81.4 81.4 81.4 91.4GE 4r0!0 42.0 68.4 71.9 77.8 81.;) 92.2 62.6 89.0 86.0 P6.6 86.6 46.6 86.9 86.9 86.9 86.9(-E 3501 41.4 70.4 73.9 79.8 83.1 84.3 84.7 87.2 88.1 98.7 84.7 88.7 89.0 89.0 89.0 89.0GE 3000 43.4 71.9 75.5 81.4 84.9 66.3 86.7 89.1 90.2 90.8 9n.4 90.8 91.1 91.1 91.1 91.1

GE 25C0 44.7 73.1 76.7 82.6 86.1 87.5 87.9 90.3 91.4 92.0 97.0 92.0 92.3 92.3 92.3 92.3,E 20001 45.3 74.3 77.9 84.0 67.6 49.0 89.6 92.0 93.2 93.8 91.8 93.8 94.1 94.1 94.1 94.1uE 18001 46.2 75.5 79.2 85.2 89.0 90.3 90.9 93.5 94.7 95.5 9S.5 95.5 95.8 95.8 99.8 95.8

1,E 1500 46.5 76.3 79.9 86.3 90.3 91.8 92.6 9S.2 96.5 97.4 97.4 97.4 97.7 97.7 97.7 97.7,E 12011 46.9 76.9 83.6 87.3 91.4 92.9 93.7 96.2 97.6 98,5 99.9 98.9 94.8 98.8 94.8 94.8

.E I001 46.5 77.0 81.0 P7.5 91.5 93.1 93.8 96.4 97.7 98.6 99.6 98.6 98.9 08.9 98.9 96.9GE 0oqiI 46.5 77.0 81. 87.5 91. 93.1 93.8 96.4 97.7 98.6 94.6 98.6 98.9 98.9 98.9 98.9SE 8001 46.5 77.2 81.1 87.6 91.7 93.2 94.0 96.5 97.9 98.8 ac,8 98.8 99.1 99.1 99.1 99.1UE 7001 46.5 77.3 81.3 87.9 92.7 93.5 94.3 96.8 98.2 99.1 99.1 99.1 99.4 99.4 99.4 99.46E 61101 46.5 77.

3 81.3 87.y 92.0 93.5 94.3 96.8 98.6 99.5 99. 99.5 99.8 99.8 99.8 99.8

lA 9O 46,9.9 77.3 81.3 87.9 92.; 93.5 94.3 96.8 98.6 99.5 99.5 99.5 99.8 99.8 99.8 99.8SE 400 46.5 77.3 81 .3 87.9 92. J 93.5 94.3 96.8 98.6 99.5 99.5 99.5 99.8 99.8 99.8 99.8GE 3001 46.5 77.3 81.3 87.9 92.1 93.5 94.3 96.8 98.6 99.7 99.7 99.7 100.0 103.0 10n.0 100.0bu 2001 46.9 77.3 81.3 87.9 92.7 93.5 94.3 96.8 98.6 99.7 99.7 99.7 100.0 100.0 100.0 100.0bE 101 46.5 77.3 81.3 47.9 92.1 93.5 94.3 96.8 98.6 99.7 99.7 99.7 100.0 100.0 100.0 100.0

uE nI 46.9 77.3 81.3 87.9 92. " 93.5 94.3 96.8 01.6 " 99.7 99.7 99.7 100.0 100.0 100.0 100.0

0181 NUR OF..R..S.RV..A.T662... .. ........IO..S.:662


40

GLOeAL CLIMATOLOT FRANCH PERCLNIAGE Efk-QUENCY Of OCCJRPENCE )F CEILING Vrks5O5 V!S]P[LI TUSAF ITAC FROM HOURLY ObSERVATIONSAIR wEATHER SERVICE/MAC

STATION NUMBER: C63273 STAIIN NAME: ZItRIKlE NL PLPIO0 OF RECORD: 77-789J-36MnNTP: JUt HOURSILSTI: 210r-23C0

•............. .. .... ........ °..... . . ...... ,,...,..o.. ... ... ,,. ..... o. . .. . . . . . . . . . . . . . . . . . . . . . .

LELI 19 VISIPILITY IN STATUTEE MILESIN I GE GE GE GE E GE GE GE GE nt GE GE GE G1 'F

FEET in0 6 5 4 2 1/2 2 1 12 I /N I 3/4 5/8 12 51 6 1/4 0

NO CELL I 19.8 33.7 34.6 38.7 41.9 43.8 44.4 46.4 46.8 47.2 47.9 97.9 47.9 41.9 47.9 47..

GE 200001 22.7 38.4 43.5 5.4 498.7 5u.7 51.3 53.6 54.0 4.4 5'.2 ,5.2 55.2 "S.2 5 .2 'S.2GE 180001 22.7 38.4 43.5 45.4 48.7 50.7 51.5 53.8 54.2 5.6 S'. 4 15.4 55.4 5S. 4 55.4 SS.4SE I bfoI 22.7 38.4 43.5 45.4 49.7 50.? 51.5 53.8 54.2 S4.6 511.4 95.4 55.4 55.4 55.4 !S 4

GE I970 22.7 38.4 43.5 45.4 498.7 50.7 51.7 54.0 54.4 54.8 S .b 5,.6 55.6 55.6 5.6 55.6GE 120001 22.7 38.6 47.1 95.6 48.9 50.9 51.9 S4-.2 54-6 ;5.0 55.8 55.8 55.9 55.8 55.8 C5.

GE WOOD 2S.0 42.9 45.0 50.1 S3.b 55.6 56.6 58.9 59.3 S9.7 bu.5 bo0.5 bo.5 60.5 bf.5 6c.5GE 900 26.4 41. . 47.6 52.8 56.4 58.3 59.5 61.8 62.2 62.6 6 .4 63.9 63.4 63.4 63.4 63.4,E 83001 27.2 47.2 53.1 55.4 59.1 61.1 62.2 65.0 65.4 65.8 6b.5 66.5 66.5 66.5 b6.5 66.5GE 7plo0 27.6 47.7 51.1 56.6 60.3 62.2 63.4 66.1 66.5 66.9 67.7 67.7 67.7 67.7 67.7 67.7CE 60OU1 28.2 48.9 52.3 57.1 62.1 64.0 65.2 67.9 68.3 68.7 6Q. 5 69.5 69.5 69.5 69.5 65.5

GE Snool 29.2 5U.7 54.0 59.5 64.u b6. 1 67.3 70.3 70.6 71.0 77.0 72.0 72.0 72.0 72.0 72 .1L

6E 45 0 30.1 52.3 55.6 61.1 65.6 67.9 69.1 72.0 12.4 72.8 71.8 73.8 73.8 73.8 73.8 73.8

,E 4rO1 33.5 57.9 61.3 67.1 72. 74.4 7-.9 79.3 79.6 90.0 B1.0 91.0 81.0 81.0 81.0 01.0bE 35001 34.6 59.b 62.6 69.0 74.0 76.3 77.9 81.Z 81.6 82.0 83.O 83.0 83.0 93.0 87.0 F 63.0GE 30011 35.8 62.2 65.9 72.2 77.1 79.5 81.0 84.3 84.7 85.3 86.3 86.3 86.3 96.3 86.3 86.3

GF 25001 36.8 63.6 67.1 73.6 78.7 81.0 82.6 86.1 86.5 87.1 88.1 88.1 88.1 98.1 88.1 88.1GE 2CO0O 37.0 64.4 65.5 75. u 80.f 92.4 84.0 87.5 87.9 88.5 89.4 89.4 89.4 89.4 89.4 89.45E IS[)o1 37.0 65.2 69.5 76.1 81.' 83.6 85.1 88.6 89.0 89.6 90.6 90.6 90.6 30.6 90.6 90.bGEF 15001 37.8 67.5 71.6 78.7 83.9 46.1 87.7 91.2 91.6 92.6 97.5 93.5 93.5 93.5 93. S3,5

LE 12001 38.7 69.5 74.0 81.4 86.7 89.2 90.8 94.5 94.9 95.9 96.9 96.9 96.9 96.9 96.9 96.9

GE 1C00 3P.9 69.7 79.2 81.6 86. 89.6 91.2 94.9 95.3 96.3 97.3 97.3 97.3 97.3 97.3 97.3

GF 9001 39.9 69.9 74.4 81.8 87.1 89.8 91.4 95.1 95.5 96.5 97.5 97.5 97.5 97.5 97.5 97.5u E AU1 38.9 70.1 74.6 82.0 87.' 90.0 91.6 95.3 95.7 96.7 97.7 97.7 97.7 97.7 97.7 97.76E 7001 38.9 70.1 74.6 82.0 87.5 90.4 92.0 95.7 96.1 97.1 99.0 98.0 98.0 98.0 9P.0 98.0GE 6GCO 39.9 7.1 74.6 82.4 87.9 9L.8 92.4 96.1 96.7 97.8 99.8 99.8 98.8 98.8 98.8 98.8

uE SUI 38.9 70.1 74.6 92.4 87.1 91. 2 92.8 96.9 97.5 98.6" 99.6 99.6 99.6 99.6 99.6 P9.6IE 4001 38.9 70.1 74.6 92.9 97.9 91. 92.8 96.9 97.5 Q8.6 99.6 99.6 99.6 99.6 99.6 99.6

300 38.9 70.1 7,b 92.4 87. 91,2 92.8 96.9 97.5 98.6 99.6 99.6 99.6 99.6 99.6 99.6bE 2301 3S9 70.1 79.b 82.4 87.9 91.2 92.8 96.9 97.5 98.6 99.6 99.6 99.6 100.0 100.0 100.0

[ lull 38.9 70.1 74.6 92.4 87." 91.2 92.8 96.9 97.5 98.6 90.6 99.6 99.6 100.0 1077.0 100.0

(E 0I 3A.9 70 . 1 74.b 2 . 4 87.9 91. 2 92.8 96.9 97.5 48.6 99.6 99.6 99.6 10r.0 100.0 100.0

IOTAL NUMPER F O8SEPVaTIONS: ilI

J°o.

4)im m l i ammm mmii

ULUuAL CLIMAIOLOGY BRANCH PEACENTA&E F9:UENCY OF OCCURENLE OF CEILIN 8FRSU VISIPILIITY

USAFI.T AC FROM HOURLY 08SRVIIONSAIR F(ATHER SERVICE/MAC

57AIIi NUMSER: 013750 STA1 17*4 NAME: ZI[KZ N fL IOD Of PECORO: 77-86MONTH: JUL HOURSILSTI: ALL

VI*S '1I4 9 11111 I', *N S 'AI U,7IE, MI LL ,S1 I !GL GE GE GE GE c , GE GE GE E t . GE GE GE I[

FI i 0 6 5 4 3 2 192 2 1 112 1 1/4 1 1/4 I8 12 ,/ Ib 1/4 0

NC CElIL 1 16.9 27.6 24.7 33.3 35. 9 37.2 38.2 39.8 40.5 41.2 41.4 '1.5 41.7 41.8 41.8 41.9

(j. 20000 19.4 32.1 34.6 36.9 41.5 43.1 44.2 46.3 47.1 47.9 49.2 48.4 48.6 48.7 48.7 48.8G(E I8 uG 19.4 32.1 34.6 38.9 41.5 43.1 44.3 '46.3 47.1 47.9 4P. 9.84 48.6 48.7 98.7 49.8

.,L 16I'uO) 19.4 32.1 34.6 38.9 41.6 43.1 44.3 46.3 47.1 47.9 44.2 48.4 48.6 48.7 4A.7 49.8ur wo01 19.4 3. 2 34.7 39.0 41.7 43.3 44.4 46.5 47.4 48.2 491.4 48.6 48.9 49.0 4').0 49.1(( 1, IcoI 19. 5 32.5 35.1 9.5 42.' 43.9 45.1 47.2 48.1 48.9 49.2 99.5 M9.7 49.8 9q.9 50.0

b F 100001 Z22. 0 31f.8 '42.6 45. 3 '4M.3 56.0 51s.3 53. 5 54.5 55.'. 55 .8 56.1 56.4 56.5 56.6 56.7F 9ILO1 27.9 39.9 42.9 47.8 50.0 S2.7 54.0 56.2 57.2 S8.2 59.6 58.9 59.2 49.3 59.4 59.561 83001 23.9 42.b 45.9 50.9 54.1 56.0 57.3 59.8 60.8 61.8 62.1 62.6 62.9 63.0 63.0 63.2,r oan 1 24.4 43.4 46.7 52.0 55.7 17.I 5P.4 60.8 61.9 62.9 61.4 63.6 63.9 64.1 64.1 64.2% brOth 24.9 43.9 47.4 52.7 56.1 57.9 59.3 61.9 63.0 64.U 64.5 64.7 65.0 65.2 65.2 65.3

(1E 5000 26.3 46.3 49.5 55.1 58.5 60.5 61.9 64.b 65.7 66.8 67.3 67.5 67.8 68.0 68.0 66.1E 4500 21.9 48.6 5?.3 57.9 61.' 63.5 64.9 67.6 68.8 69.8 70 .3 70.6 70.9 71.1 71.1 71.2

f( 4n00 30.6 53.6 57.4 63.3 67.0 59.0 70.5 73.3 74.5 75.5 76.0 76.3 76.6 76.8 76.8 76.9F 3500 1 32.0 55.8 59.7 65.7 69.6 1.7 73.2 7 7.0 7.2 18.3 7P.6 79.0 79.q 79.5 79.5 79.7of 31001 33.5 58.6 62.6 68.8 72.9 75.0 76.4 79.2 80,5 81.6 B?.1 92.4 82.7 82.8 82.9 83.

0

GE 2500 34.5 60.4 64.4 70.8 74.q 77.0 78.5 81.4 82.7 P3.9 84.4 94.6 85.o 8.1 85.1 85.36E 210) 35.6 62.3 65.4 3.0 77.1 79.4 80.9 93.9 85.2 F6.4 86.9 17.1 87.5 87.7 87.7 87.8GE 16001 36.1 63.b 67.7 74.4 78.6 80.9 87.4 85.5 86.8 88.0 9.9; 98.8 89.1 89.3 89.3 89.4

bE 1500) 36.7 65.5 63.8 76.8 81.1 93.5 85.1 88.3 89.7 90.9 91.4 91.7 92.0 92.2 92.2 92.3.E 12001 37.1 66.5 71.0 789.4 82.H 85.3 86.9 90.1 91.5 92.7 933 93.5 93.9 94.1 94.1 94.2

rF 1C00 3- 66.9 71.5 79.0 8.q 86.0 87.7 90.9 92.4 '3.6 94.1 94.4 94,8 94.9 94.9 95.1Ut 9C0 67.2 71.9 79.6 94.1 86.6 898. 91. 7 93.1 94.4 94.9 95.2 95.6 95.7 95.7 95.9fE gol 7. 1 67.4 72.2 80.1 84.7 7.3 89.2 92.6 94.0 95.3 96.9 96.2 96.5 96.7 96.7 96.8

CE 70 37.1 67.5 72.3 80.4 eS.2 87.8 89.8 93.3 94.8 96.1 96.7 77.0 97.3 97.5 97.5 97.6

SE 6001 37.! 67.6 72.4 8O.b 85.h 98. 2 90.3 93.9 95.6 97.0 97.6 91.9 98.3 98.5 99.5 98.7

GE 5?) 3 7.1 67.6 7?.4 83.7 85.7 48.4 90.5 94.2 95.9 97.3 97.9 98.3 98.6 98.8 99.8 99.0bE 4001 37.1 67.6 72.4 80.8 85. 48.6 90.8 94.5 96.2 97.6 99.3 98.6 99.a 99.2 99.2 99.4(( 3001 37.1 67. 77. 80.8 85., 98.7 90.8 94.5 96.2 97.7 99.4 94.8 99.2 99.5 99.5 99.7

ou 20 0 37.1 67.6 72.4 90.b 8%.Q Fl8.7 90.8 94.5 96.2 97.7 99.4 98.8 99.3 99.7 99.7 100.0Sr 100) 37.j 67.6 72.4 40.8 85.4 99.7 90.8 94.5 96.2 97.7 9P.4 98.8 99.3 99.7 99.7 100.0

(IF 3 37.1 67.6 72.4 90.9 85. 98.7 90.8 94. 5 96.2 97.7 99.4 98.8 99.3 99.7 9Q.7 100.0...............................................................................................................................................

TO1L NUMER OF OqSf9AI3NS: 4602

4mmm il I lI

GLOsAL CLIMATOLOGY ARANCH PEACENI7GE FR'OUENCY OF OCCURQENCE OF CFILILh vrRSUS VISIBILITY

uSAFE T AC FROM HOURLY O.SERRATIONSAIR eFATHER SERVICE/MAC

STATI014 NUMPLR: 063250 SIAION NAME; ?IRIK;E NL P'E10L OF FECORD 78,80-86

MONIH: A UG HOURS(LSTI: GOGO-200C

CE FLING VIIIIYI TTT IE

1N C GE GE 6t SE GL G- GE GE GE GE L Gr E 1 E GL GEFEEl I l 6 t 4 3 12 2 1 1/2 I 1/4 1 T/N /8 1/2 5/16 1/4 0

NO CEIL I I1.. 94., 39.c 46.8 52., 54.1 55.5 51.7 58.1 58.6 5Q.9 59.0 59.0 59.2 59.2 £9.2

GE ooo3 22.4 36.1 39.5 4.7 54. 5b. b 57.9 60.3 b0.9 62.0 b?.b b2.b 62.b 62.8 62.B b2.8,E 18I0or03 22.. 16.11 3.5 48 1 54.9 56.6 57.9 60.3 60.9 62.0 C2.6 62.6 62.6 62. : 62.4 62.8

GE 16 O71 2?.4 36 . 39.5 48.7 54.9 56.6 579 60.3 60 .9 62.L, 62.6 62.6 62.6 62.8 62.8 62.8CE 14'b00 o 2.:4 3b.1 39.5 48.7 1N., 16:6 51.9 60.3 60.9 62.C b2.6 62.6 62.6 62.8 b2.8 62.3LE 120l 22.4 6.3 38.7 48.9 5 56.8 54.1 61 1 67 6 6.8 61.3 b3.3 63.3 63.5 63.5 63.5

(', boUO 25.2 4,. 43.8 S3.6 60. 62.U 63.3 66.5 67.1 68.2 6.8 68.8 68.8 69.0 69.0 69.UuE 90001 25.4? 4. 5 45.3 55.5 b2.2 63.9 65.2 68.4 69.0 70.1 7n.7 70 7 70.7 70.9 70.9 70.96O a8200 I 26.1 42.7 4.6 57.0 63.7 65. 4 66.7 70. 1 70.7 71.8 72.4 72.4 72.4 72.6 72.6 72bUE Ir; 0 26. 43.1 47.3 57.3 64.1 6S.6 67.1 70.5 71.1 72.2 72.7 72.7 72.7 72.9 72.9 72.9

bE 6tCO1 26.1 43.2 41.2 57.5 64.3 66.0 67. 3 70.7 71.2 72.4 72.9 72.9 72.9 73.1 73.1 73.1

,O O 50002 :7.4 45.1 49.4 59.8 66.5 68.2 69.5 73. 1 73.7 74.8 7).6 75.6 75.6 75.8 75.8 75.8GE 4Ir3O UP 4.2 45.9 5. b 8.5 67.9 69.0 70.3 73.9 74.4 75.6 76.3 76.3 76.3 76.5 76.5 76.5GF 4D1 29.5 48.7 53.2 63.5 70.6 72. 4 73.7 77.6 78.2 79.5 8r. 3 80.3 80.3 80.5 83.5 90.5

6( E on 31.1 49.8 54.9 65.2 72.2 74. 1 75.4 79.3 79.9 81.2 82.n 92.0 82.0 42.1 82.1 82.1GO 3001 31.4 52.8 S4.1 69.0 76.3 78. 6 79.9 84.0 84.6 85.9 86.7 86.7 86.7 8b8 36.8 86.8

O 25301 32.7 55.5 63.9 72.4 79.9 82.1 83.5 87.6 88.2 89.5 90.2 90.2 90.2 93.4 93.4 90.4GE zo0 33 .3 56.4 62. 73.5 81.7 83.5 84.8 89.1 897 91.0 91.7 91 . 91.7 91.9 91.9 91.9

E 1c4 3: 33.3 56.8 b.6 74.2 82.1 84.4 85.7 90.0 90.6 91.9 92.7 92 92.7 q2.9 92.9 92.9(,( 15001 -3.5 57.7 63.7 75.4 83.6 86.1 87.4 91.7 92,3 93,b 94.4 94.4 9.4 94.5 94.5 94.550 1700 33.6 58.3 64.3 75.9 84.2 86. 7 88.0 92.5 93.0 94.4 9 I1 95.1 95.1 45.3 95.3 95.3

uO E l"o 3 3.6 8.6 64.7 76. 3 84.6 87.0 88.3 93.0 93.6 94.9 9 .7 95.7 95.7 Q5.9 95.9 95.9('F 9LO 39.6 58.8 64.8 76.7 85.r 87. 4 88.7 93.4 94.0 95.3 96.1 96.1 96.1 96.2 96.2 96.2(O 4 00 33.6 59.2 65.2 77.4 86.1 88.5 89.8 95.1 95.7 97.0 97.7 97.7 97.7 Q7.9 97.9 97.9GE 7001 33. 59.2 65., 77.8 86.9 89.3 90.6 95.9 96.4 977 94.5 98.5 98.5 98.7 98.7 98.7GE 6 QC 33.6 ,9.2 65.6 78.9 87.6 9C.0 91.4 96.6 97.2 98.5 99., 99.2 99.2 99.4 99.4 99.4

CE 3.0 33.6 5.e 65.6 78.4 87.1 90 0 91.4 97.0 97.7 99.1 99.8 99.8 99.8 11U.0 100.0 170.0Of WG0I 31.6 {9,2 65.6 78.4 87.6 90.0 91.4 97.0 97.7 99.1 99.4 99.8 99.4 100.0 1030 100.0tE 0 P 33 .6 59.. 65.( 74.4 87.6 90.0 91.4

97.b 97.7 99.1 99q.8 99.8 99.8 10o.0 100.0 100.0

0 2U0 33.6 9 .2 65.b 78.4 87.6 9U 0 91.4 97.0 97.7 99.1 99.8 99.8 99.8 100.0 100.0 100.0f 11DO1 33., ,9., 66.b 78.4 87.5 90.0 91.4 97.0 97.7 99.1 99.8 99.8 99.R 100.0 I00.0 100.0

G( ') 33.6 59.2 65.6 74.4 87.6 9u.U 91.4 97.0 97.7 99.1 99.9 99.8 99.8 100.0 IcO.O 100.0

TOTAL NUMPL8 t^ OPSF4VAIONS: 532

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FRQUENCY OF OCCURqENCE OF CEILING V[RSbS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AIR WEATHER SERVICEJMIAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE[ NL PERIOD UF ECORD: 78,80-8bMONIH: AUG HOUIJSILSTI: 0309-0S06

CEILING VISIBILITY IN STATUTE MESIN GE GE GE GE GE G- GE GE GE GE rL GI G GE r, GE

FEET in 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 '/b 1/2 5/6 1/ I

. . ..................................................................................

NO CEIL 1 13.2 24.8 27.9 33.4 36.9 !9.3 40.7 44.4 45.8 N7.3 4,7 4T.7 41.5 , 49.3 45 ll.l

GE 200001 14.3 217.1 30.5 36.3 40.1 42. 6 44.0 48.5 50.1 1.9 "'.3 '-2.3 51.3 ,4.j I',.2 5."(,E 180001 14.3 27.1 33.5 36.3 40. 1 42.6 44.0 48.5 50.1 51.9 V'.T .2.3 ST.O ''4.1 54.2 ..

.[ 160001 14.3 27.1 33.5 36.3 40.1 42.6 44.0 48.5 50.1 51.9 t..3 5 2.1 51.1 ' '4. 55.4GE 1t40001 14.3 21.1 3 - 36.3 40.1 43.6 44.0 48.5 S.1 51.9 2.3 2.3 53.3 '.3 %..2 '5.GE 120001 14.5 27.3 33.6 3E 7 40.5 43.0 44.4 48.9 50.5 52.3 52?. 7 2.1 5.. 4 4.4 4 .5 '5s6

6 E IC000 16.3 31.0 34.6 40.7 45.1 48.3 49.7 54.4 56.2 58.(, 5g.! ' S. 5.1 £,. 1 s.3 t1.5GE 90013 1b.7 32.6 36.1 42.2 47.3 49.9 51.3 56.2 58.0 S9.7 6n., . '.5 61.1 t?.1 tP.5 fl.?GE 80011 17.3 33-6 37.5 43.8 48.9 51I7 53.2 58.5 60.3 62. 1 2.7 f,2.9 63.7 64.b 4.8 L6.u 70001 17.5 34.2 37.9 44.2 49.5 52. 1 53.6 58.9 b10.7 62.5 5'.1 1. 3 b1.U , t.2 6L.4GE 60131 17.5 34.2 37.9 44.2 49. ' 52.3 53.8 59.1 60.9 62.7 b I. I I.5 64.2 5.2 -. 4 6-t.b

GE 50G0 18., 35.6 39.5 46.0 51.1 54.i 55.8 61. 1 b2.9 t4.6 t 1. 65.4 66.2 6, 7.2 7.4 h,bGE 45oo1 20.2 37.7 41.5 47.9 53.4 56.6 58.2 63.5 1.5.2 67.1l 47.6 f,.8 64.6 9, b6' . L .;G[ 40091 2.20 41.3 45.2 5z. 3 57.R 60. 9 62.5 68.0 19.7 71.5 1.1 123 71. 1 74. 1 43 7 .4GE 3t.OOI 22.8 42.8 47.J 54.0 59.5 62.7 64.4 70.1 71.9 .3.7 14 . 74.5 15.2 76., 75.4 77.6GE 3000 24.0 45.2 4?.3 56.4 62.Q 16.0 67.8 73.5 15.4 71.2 7 1.q 14.0 8 7. 7 . fill'. I ' .I

GE 25601 25.9 48.5 52.7 59.7 66.4 69.7 71.5 ?.2 79.2 80.9 R.' 'I.? 62.5 #3.5 FI S4. qGE 2U001 2F..5 49.7 53.8 60.9 67.6 710.9 72.7 78.4 80.8 *2.1 92.7 -2.4 ff.7 4.1 #I,9 6.1GE IUO 26.9 6q.j 54.2 61.7 64.P 72.1 74.1 79.4 81.7 3.5 84.1 94.3 85. 1 b. .2 F7.4LE 1500 26.9 50.9 55.4 63.3 70V.6 73.9 75.4 83.5 93.5 .5. 3 A,.4

4s.I 46.4 '7. t3 .3 P9.2

GE 1iroO 27.3 SI.7 56.6 64.b 77.1 75.6 7.6 81.5 85.. R7.4 0.2 p4.6 89.4 "0. 4 4. 1.7

GE I0 27.3 2 2. 3 57.2 65.2 72. 76.4 78.4 84.5 86.4 q4.4 49. '3.6 9,. 4 I.4 41.6 "5.7

GE 9L01 27.7 ' 3.4 5.5 66.8 74.5 78.0 80.0 86.2 88.2 90., 0 91 .4 92.1 3.1 97.3 4s.5(oF GO Z 17.7 53.4 54.9 61.2 74.9 78.4 80.4 87.2 82 I. 4 5 2. 3 12.7 91.5 94.5 94.7 45.9GE 700 27.7 53.8 59.9 68.2 76.? 79.8 83.7 88.6 90.8 92.7 9.7 94'.l1 94 .4 45.9 4f6.1 7 .2GE 600 27.7 4 .0 65 .1 68.8 77.2 80.9 82.9 YU.2 92.3 99.3 S,. 3 45.7 96.' 97.4 97.6 C8.6

GE 1un 1 27.7 54 .0 63.1 68.8 17.2 J0.9 82,.9 90.4 92.5.S .5 95.5 .5,9 96 .7 97.6 97.8 39. 5

GE 401 27.7 '4.3u 62.1 6 9.L 77.4 MI. 83.1 90.6 -. 7 94.7 5.7 '46.1 96.9 97.8 93. 39,,(IE ( J ,7.7 54.0 b1.1 69.

U 77.4 81.1 83.1 9(.8 9.9 94.9 .' .9 96.3 97. 1 08.0 9P.2 Q;,4

CE 201 n 27. 4.L U3.1 69.0 17.4 R.1 83.1 99.8 2. 95.1 96.! 6.5 97.2 q8.2 99.4 99.6bE 1OCI 27.7 54.0 63.1 69.1 77.4 1.1 83.1 90 8 92.9 '5.3 46.3 96.7 97.4 98.4 99.6 12u.0

br 0 27.7 ,4. t, 61.1 f9. 60 77.4 83.3 8k.1 993.8 92.." 9.3 V6.I Q6.7 97.4 48.4 99.6 1O0.0.,, ...... .. o . .,.,. . ... .. ° ... , ..... ,,........ ... ,... ..... ....... , ... . ........ ,......... .,.. ....... . .... ., ........ .. .....

10AL NUMB[R OF OPFVTINS: u 9

I:mnImnu m mnnm l m Il ml n I

aD-Ai83 267 ER~ SMT LII3J 3/

UNCLASSIFIED UYt DS-I' C 2 M

ST IWI$"em M

I _l

Li~12.2

'r")COPY RESOLUTION rEST CHART

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FR:QUENCY OF OCCURRENCE oF CEILING VrRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATION NAME: ZIERIKZES NL PERIOG OF RECORO: 77-86

MONTH: AUG HOURSILSTI: 0600-0800

.. ....................................................................................... ............................CEILING VISIBILITY IN STATUTE MILES

19 N GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET 3 10 6 5 9 3 2 112 2 1 112 1 1/4 1 3/4 5/8 112 5/16 1/9 0

NO CElL 1 10.3 18.1 19.6 22.5 2q.9 26.? 27.0 31.2 32.4 39.9 36.6 36.7 37.0 37.8 3R.1 39.9

GE 200001 12.0 20.7 22.8 26.9 29.8 31.6 33.0 36.6 38.0 90.9 42.1 92.4 93.1 99.0 44.3 95.5GE 180001 12.0 20.7 22.8 2b.4 29.8 31.6 33.0 36.6 38.0 90.9 92.1 42-9 93.1 99.0 99.3 45.5GE 166001 12.0 20.7 22.8 26.9 29.8 31.6 33.0 36.6 38.0 90.9 92.1 92.9 93.1 44.0 99.3 95.5GE 190001 12.0 20.7 22.8 26.9 29.8 31.6 33.0 36.7 38.1 90.6 92.3 42.6 43.2 44.1 99.9 95.76E 120001 12.2 21.1 23.3 26.9 30.2 32.1 33.5 37.2 36.6 91.5 93.2 93.5 99.1 95.1 45. 96.8

GE 100001 19.0 25.3 27.8 32.1 36.9 36.6 90.1 93.8 95.2 98.6 50.3 50.8 51.7 52.6 52.9 59.5GE 90001 19.8 26.9 29.6 34.1 38.9 90.6 92.3 96.1 97.7 51.1 57.9 53.4 59.3 S5.2 55.6 57.1GE 80001 15.1 27.8 31.0 35.6 90.1 9Z.3 99.1 98.5 50.0 53.5 55.9 55.9 56.8 57.7 58.0 59.6

GE 70001 15.1 27.8 31.2 36.1 90.6 92.7 99.6 98.9 50.5 59.0 55.9 56.3 57.3 58.2 S.5 60.0

GE 60003 15.3 27.9 31.5 36.6 91.0 93.2 95.1 99.9 50.9 5q-5 56.3 56.8 57.7 58.6 59.0 60.5

GE 50001 16.2 29.8 33.3 38.4 92.9 45.2 97.2 51.7 53.9 56.9 58.8 59.3 60.2 61.1 61.9 63.0

GE 95001 17.0 31.0 35.2 90.3 99.9 97.1 99.1 53.7 5s.q 59.0 60.8 61.3 62.2 63.1 63.9 65.0GE 90001 19.0 35.2 3 .5 99.9 99.5 51.9 59.0 58.6 60.5 69.0 66.0 66.5 67.9 68.9 69.7 70.2GE 35001 20.2 37.5 91.8 97.9 52.6 59.9 57.1 61.9 63.7 67.3 69.3 69.8 70.7 71.6 71.9 73.5GE 30001 22.8 91.8 96.1 52.2 57.9 59.7 62.0 66.8 68.8 72.9 74.4 79.8 75.8 76.7 77.0 78.5

GE 25003 29.1 93.8 49.3 59.6 59.9 62.2 69.5 69.6 71.6 75.2 77.3 77.8 78.7 79.6 79.9 81.5

GE 20001 25.0 96.0 93.6 57.7 b3.1 65.4 67.7 72.8 75.0 78.7 AI.n 81.5 82.9 83.3 83.6 85.2GE 18003 25.6 96.8 51.9 58.8 69.9 66.7 69.0 79.2 76.9 80.1 87.9 82.9 83.8 89.7 85.0 86.6GE 15001 26.9 98.1 52.8 60.5 66.9 68.7 71.1 77.2 79.3 83.2 85.5 86.0 86.9 87.8 88.1 89.7GE 12001 26.7 98.8 53.5 61.7 67.7 7C.2 72.8 78.9 81.0 85.2 8R.0 88.9 89.8 90.3 90.6 92.1

GE 10001 26.7 98.9 53.9 62.3 68.9 71.0 73.6 79.6 81.8 86.0 88.7 89.2 90.1 91.0 91.9 92.9GE 9003 26.7 99.1 59.2 62.7 68.7 71.3 73.9 80.1 82.3 8b.9 89.7 90.1 91.0 92.0 92.3 93.8GE 8001 26.7 99.1 59.3 63.0 69. 71.6 79.9 80.6 83.0 87.5 91.2 91.8 92.9 93.8 99.1 95.7GE 7003 26.7 99.2 59.5 63.6 69.6 72.2 75.0 81.5 89.1 88.6 92.6 93.2 99.3 95.2 95.5 97.1

GE 6003 26.7 99.2 59.5 63.6 69.6 72.2 75.0 82.1 84.7 89.9 93.9 99.1 95.2 96.1 96.5 98.0

GE 003 26.7 92 59.5 63.6 69.6 72.2 75.2 82.9 85.3 90.1 99,1 99.9 96.0 96.9 97.2 98.8GE 9003 26.7 99.2 59.5 63.6 69.6 72.2 75.2 82.6 85.8 90.6 99.6 95.9 96.5 97.9 97.7 99.2

GE 3001 26.7 99.2 59.5 63.6 69.6 72.2 75.2 82.6 85.8 90.6 99.8 95.5 96.6 97.5 97.8 99.,GE 2003 26.7 99.2 59.5 63.6 69.6 72.2 75.2 82.6 85.8 90.6 99.8 95.5 96.6 97.5 97.8 99.5GE *003 26.7 -9.2 59.5 63.6 69.6 72.2 75.2 82.6 85.8 90.6 99.8 95.5 96.6 97.5 97.8 99.8

GE 01 26.7 99.2 59.5 63.6 69.6 72.2 75.2 82.6 85.8 90.6 99.8 95.5 96.6 97.5 97.8 10OO0

tOTAL NUMBER OF OBSFRVAIONS: 698

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILIN6 VERSUS VISIBILITY

USAFETAC FROM HOURLY OBSERVATONS


STATION NUMBLR: 063250 STATION NAME: ZIERIKZE: ML PERIOD OF RECORD: 77-78,80-86MONTH: AUG HOURSILSI: 0900-1100

.......................................................................................................................................CEILING VISIBILITY IN STATUTE MILES

IN I GE GE GE GE GE G GE GE GE GE GE GE GE GE GL GE

FEET I 1o 6 5 4 7 2 112 2 1 112 1 1/4 1 3/4 5/8 112 5/16 1/4 0

2 NO CEIL 1 12.2 23.5 24.4 26.8 29.9 32.7 35.5 38.5 39.3 39.9 40.8 40.8 40.8 40.8 40.8 40.8

GE 200001 13.9 27.1 2S.0 30.5 3,.6 37.6 40.5 43.37 44.4 4.1 46.0 46.0 46.0 46.0 46.0 46.0GE 18000l 13.9 27.1 28.0 30.5 34.6 37.6 40.5 43.7 444 45.1 46.0 46 0 46. 46.0 46.0 6.0GE 160001 13.9 27.1 28.0 30.5 38.6 37.6 40.5 43.7 84.4 45.1 46.0 4b.0 46.0 46.0 46.0 q6.o

GE 140001 13.9 27.2 2;.5 31.0 35.2 38.2 41.3 44.4 45.2 45.9 46.8 46.8 46.8 46.8 46.8 46.80 GE 120001 19#7 p9.0 31.2 32.7 37.1 40.1 43.3 46.5 47.4 8.4 49.3 49.3 49.3 9.3 993 4993

GE 100001 14.3 34.3 35.8 39.6 44.9 47.9 51.3 55.1 56.2 57.1 58.1 58.1 58.1 58.1 58.1 58.1GE 90001 18.3 34.9 36.6 40.5 46.3 49.3 52.7 66.5 57.9 58.8 60.1 60.1 60.1 60.1 60.1 60.1GE 80005 19.1 36.6 38.7 43.0 48.8 51.8 55.4 59.2 60.6 61.5 62.8 62.8 62.8 62.8 62.8 62.8

GE 70001 19.1 36.6 35.7 4,.0 490 52.0 55.6 59.3 bO7 61.7 62.9 62.9 62. 9 62.9 62,9 62.9GE 6000 19,2 36.9 39.1 ,3.5 49.S 52.4 560 59.8 61.2 62.1 63.4 63.4 63.4 63.4 63.8 63.4

GE 5000 19.7 37.7 40.1 44.4 50.7 53.5 57.3 61.2 b2.6 63.5 64.8 64.8 64.8 64.8 64.8 64:8( GE 4CO0I 21.1 39.7 42.6 46.9 531 56.2 59.9 63.8 65.3 66.2 67 67. 67.4 67.4 67.4 67.4

GE 40001 24.3 44.1 47.1 52.0 58.1 61.2 64.9 68.9 70.3 71.2 72.5 72.5 72-5 72.5 72.5 72.5

GE 35001 27.1 47.9 51.0 56.0 62.3 65.6 69.3 73.2 78.6 75.6 76.8 76.8 76.8 76.8 76.8 76.8GE 3000 28.8 52.1 56.4 60o7 67.1 70.6 74.6 78.6 80.0 80.9 82.2 82.2 82.2 82.2 82.2 82.2

GE 25001 30.0 54.9 58.2 63.5 70.0 73.4 77.5 81.4 82.8 83.7 85.0 8S.0 85.0 85.0 85.0 85.0GE 20001 31.1 57.0U 63.4 66.0 72.9 76.5 80.6 84.5 86.2 87.2 84.7 86.7 88.7 88.7 88.7 88.7

GE 1800f 32.4 59.0 62.9 68.9 75.7 79.3 83.4 87.6 89.4 90.3 91.9 91.9 91.9 91.9 91.9 91.9GE 15005 33.2 60.9 64.9 71.2 78.2 81.8 85.9 90.6 92.3 93.3 94.8 94.8 94.8 94.8 94.8 94.8

* GE 12001 33.5 62.0 66.0 72.5 79.R 83.4 87.5 92.3 94.1 95.0 96.6 96.6 96.6 96.7 96.7 96.7

GE 10001 33.5 62.1 66.4 72.8 80.1 83.9 87.9 93.0 94.7 95.8 97.3 97.3 97.3 97.5 97.5 97.5GE 9001 33.5 62.1 66.4 72.8 80.3 84.0 88.1 93.1 94.8 96.1 97.7 97.8 97.8 98.0 98.0 98.0GE 8001 33.5 62.1 65.4 72.9 80.6 84.4 88. 93.6 95.3 96.7 98.3 98.4 98.4 98.6 98.6 98.6GE 70n1 33.5 62.1 66.4 72.9 80.6 84.4 88.4 93.6 95.3 96.7 9R.3 98.4 98.4 98.6 98.6 98.6

GE 6001 33.5 62.1 66.4 72.9 80.6 84.4 88.4 93.6 95.3 96.9 9R.4 98.6 98.6 98.7 98.7 98.7

GE 5001 33.5 62.1 66.4 72.9 80.6 84.4 88.4 93.7 95.6 97.3 99.9 99.1 99.1 99.2 99.2 99.2

GE 4001 33.5 62.1 66.4 72.9 80.6 84.8 88.8 93.7 95.6 97.5 99.2 99.5 99.5 99.7 99.7 99.7

GE 3001 33.5 62.1 65.4 72.9 80.6 84.4 88.4 93.7 95.6 97.5 99.2 99.5 99.5 99.7 99.7 99.7

GE 2001 33.5 62.1 65.4 72.9 80.6 84.4 88.4 93.7 95.6 97.5 99.2 99.5 99.S 99.7 99.7 99.7GE 1001 33.5 62.1 66.4 72.9 80.6 84.4 88.4 93.7 95.6 97.5 99.2 99.5 99.5 99.7 99.7 99.8

rE 01 33.5 62.1 66.4 72.9 80.6 84. 4 88.8 93.7 95.6 97.5 99.2 99.5 99.5 99.7 99.7 100.0


A

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM NOUQLY OBSERVAIIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE NL PEqIOo or RECORD: 77-78,60-86MONTH: AUG HOURSILSYI: 1?00-1400

CEILING VISIBILITY IN STATUTE MILESIN I GE 6E GE GE GE GE GL GE GE GE GE Gf GE GE GE GE

FEET i 10 6 5 4 3 2 It2 2 1 1/2 I 1/ 1 3/4 58 1/2 S/16 1/N 0

NO CEIL 1 16.8 27.3 28.4 32.2 34.8 36.3 37.1 38.9 39.5 O.Z 60.2 40.2 60.2 0.2 %n.2 N0.2

GE 20000 19.2 32.1 33.6 38.2 1.2 63. 7 6.6 66.6 :7.2 47.8 47.8 67.8 97,8 7.8 67.: .86E 180001 19.2 32.1 33.6 38.2 1.12 63.7 66.6 66.6 67.2 67.8 67.8 67.8 67.6 67.8 67.8 67.1G E 160001 19.2 32.1 33.4 38.2 N1.2 N3. 7 66.6 96.6 #7,2 7.8 67.8 87.8 NI.8 47.8 7.S %7.8

GE 140001 19: . 32.2 33.6 38.5 41:5 66.1 65.0 67.0 N7.6 N8.2 6.? 8 :2 N8

2 98.2 N6.:2 .2

GE 120009 19.8 32,7 34.2 39.6 62.6 65.2 66.3 68.2 68.9 N9.5 69.5 69.5 69.5 N9.5 N995 % 9.S

GE 100001 23.5 38.5 63.3 66.7 S0.1 52.7 53.9 56.2 $6.9 57.6 57.6 57.6 57.6 57.b 57.6 67.6GE 90001 24.o 39.8 62.1 68.7 52.2 56.6 56.2 58.6 59.q 60.0 V7.0 60.0 60.0 60.0 60.0 b6.0GE 80001 25.2 62.9 65.2 51.8 55.3 57.9 59.2 62.0 62.7 63.6 63.6 013 63.6 63.6 63.% b301GE 70001 25.3 63.2 65.5 52.2 55.9 58.5 59.8 62.6 63.6 66.0 66.0 66.0 69.3 66.0 b6.0 66.0

SGE 601n 25.6 63.7 46.0 52.7 56.7 58.9 60.3 63.1 63.8 661. 66.6 66.6 66.6 66.6 66.6 66.6

GE 5noo 26.1 661.6 46.9 53.9 57.6 60.5 6j.8 64.6 65.3 66.0 66.0 66.0 66.0 66.U 66.0 66.0C GE 6S009 28.7 68.1 53.5 57.7 61.6 66.3 6S.6 68.7. 69.5 70.1 7n.1 70.1 70.1 70.1 10.1 70.1

GE 60001 32.6 56.7 57.1 66.6 68.2 71.1 72.5 75.7 76.5 77.1 77.1 77.1 77.1 71.1 77.1 77.1GE 35009 3S.1 58.0 63:6 68.1 71.8 76.7 76.0 79.2 8.0 80.6 80.6 80.6 80.6 80.6 ST.6 80.6

I.E 30009 37.6 62.7 65.6 73.6 77.1 80.0 81.6 86.7 85.5 86.1 86.1 86.1 86.1 06.1 66.1 86.1

- GE 25001 38.5 66.6 67.6 75.7 79.6 82.3 83.7 87.0 87.8 88 .6 8 88. 6 6.6 .88.6 68.6 88.6.E 20001 39.7 66.9 73.6 76.6 82.6 85.5 86.9 90.2 91.0 91.6 91.8 9i.8 91.8 91.8 91.8 91.8GE 18009 63.6 69.5 73.3 81.5 85.5 88.6 89.8 93.1 93.9 96.5 96.7 96.1 96.7 96.7 96.7 96.7

6E 15001 61.7 71.5 75.3 83.5 87.9 91.0 92.5 95.9 96.6 97.N 91.6 91.6 97.6 97.b 97.6 91.6GE 12001 62.0 72.2 76.0 86.3 88.7 91.6 93.3 96.6 97.6 98.3 94.5 98.5 98.5 98.5 98.5 98.S

bE 10U0 62.0 72.2 76.0 86.6 88.9 91:9 93.6 96.8 97.7 98.5 98.8 68.6 98.6 98.6 96.6 98.6(IE 9009 2.0 72.2 76.0 86.6 89., 92.2 93.7 97.1 96.0 96.8 99.6 99.6 99.6 9.N 99.6 99,GE 8009 62.0 72.2 76.0 8.6 89.3 92.61 93.9 97.6 98.3 99.2 99.6 99.6 99.6 99.8 99.8 99.6GE 7001 62.0 ?2.2 76.0 86.6 89.3 92.6 93.9 97.6 98.3 99.2 99.6 99.8 99.6 99.5 99.6 99.8

GE 60091 2.0 72.2 76.0 86.6 89.3 92.60 93.9 97.61 98.3 99.6 100.0 100.0 100.0 100.0 100.0 100.0

bE 500, 62.0 72.2 7b.C 6.b 69.3 92.6 93.9 97.6 98.3 99.6 100.0 300.0 100.0 100.0 100.0 100.0

GE 6009 62.O 72.z 76.0 86.6 89.3 9Z.6 93.9 97.6 98.3 99.4 o.0 lO00.0 300.0 100.0 300.0 300.0GE 3001 62.0 72.2 76.0 86.6 89.3 92.4 93.9 97.6 98.3 99.6 100.0 100.0 300.0 300.0 300.0 300.0

(GE 2001 62.0 72.2 7b.0 8.6 69.3 92.6 93.9 97.6 98.3 99.6 300.0 300.0 300.0 300.0 300.0 10o0GE 1001 62.0 72.2 76.0 86.6 89.3 92.6 93.9 91.6 98.3 99.6 3O.0 100.0 100.0 100.0 300.0 100.0

IE .. 9 62:0 72.2 7.0 86.6 89.3 92.6 93.9 97. 96.3 99.6 100.0 300.0 300.0 IO0.0 300OO. 100O

TOTAL NUMBER OF OBSERVATIONS: 65S

* L

GLOBAL CLIMAIOLOGY BRANCH PERCENTAGE FR.QUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OIfSLRVATIONSAIR WEATHER SERVICE/MAC

STATION NIMER: 063750 STATION NAME: ZIRIKZE[ NL PEIO0 OF PECORD: 71-74,S0-86MONTH: AUG HOU*SILSII: ISO0-1700

CEILING VISIBILI7Y IN STAJUIF MILES "

IN | GE GE GE GE GE V GE GE GE GE GE GE GE GE GE GEF ET 1 l Eo 6 1 5 I 2 , I 1 I/2 1 I/. I 1/5 5/6 1/2 5/16 I/d 0

NO CEIL I 21.2 35.0 35.2 39.1 53.6 55.3 56.1 57.7 58.5 59.0 59.2 59.2 99.2 49.2 59.2 59.2

GE 200001 25.6 0.02 51.S 55.6 50. S2.1 53.1 SS.2 66.2 56.6 51.0 57.0 57.0 ST.0 S7.0 57.02G. 1800 2S6 0.2 51.5 5,.6 50.3 52. 1 53 2 6.2 56.6 5.0 51. 0 57. ST.o 57.0 ST.O

N( 160001 2S.6 0.Z 51.5 45.6 50.3 52.1 S3.1 $5. 562 S 56 S6 7.0 57.0 S7.0 S1.0 57.0 S7.0GE 140001 2S.6 50.2 51.9 45.9 0.7 52.5 s3.4 SS.5 56.5 57.2 57.3 51.3 57.3 57.3 57.3 S7.3GE I20001 25.6 50.6 52.5 56.6 51.3 53.3 s.2 56.% 57.3 56.0 58.1 56.1 56.1 56.1 58.1 56.1

GE 100001 29.3 56.9 19.3 53.9 59.0 60.9 61.9 65.2 6b. 66.0 66.1 66.1 66.1 66.1 66.1 66.16G 90001 30.3 16.2 53.1 SS.5 60.6 62.5 63.S 65.8 66.8 67.6 67.8 61.6 67.6 67.6 67.6 61.8(.E &000 32.6 51.8 54.4 59.3 65.5 66.6 67.6 69.9 70.6 71.7 11.8 71.8 71. 71.8 71.8 71.6AE 70001 32.6 51.8 Sq.% 59.5 6%.7 66.6 67.8 70.0 11.0 71.8 1Z. 72.0 72.0 7Z.0 72.0 72.0GE 60001 32.7 52.1 55.7 5q.8 6S.0 67.1 65.1 70.% 71.3 72.1 72.3 72.3 72.3 72.3 72.3 72-3

GE SOOI 35.0 S6 51.2 62.5 67.9 70.1 71.0 73.3 75.3 75.1 75.2 7S.2 75.2 75.2 7S.2 75.26E 5500i 35.0 S6.U 55.8 65.3 69.7 71. 72.8 7S.1 76.1

7b9 77.0 77.0 77.0 77.0 77. 0 77.0

.E 50001 37.3 60.3 63.0 66.9 75.3 76.S 77.S 60.0 60.9 81.6 81.9 81.9 81.9 81.9 81.9 61.96E 350fl 39.3 63.2 66.1 72.0 77.5 79.6 80.8 63.2 65.2 6S.0 85.2 6S.2 6S.2 65.2 85.2 85.z61 30001 51.5 66.6 69.9 75.7 61.1 83.5 65.S 67.0 67.9 86.8 68.9 88.9 8.9 88.9 88.9 88.9

I.E 25001 52.2 67.9 73.2 77.0 62.6 65.9 66.0 66.5 69.5 90.2 90.5 90.5 90.5 90.5 90.4 90.56E 20001 51.1 70.8 75.3 60.3 86.0 881 69.6 92.2 93.2 95.1 95.3 95.3 95.3 95.3 95.3 95.36E 16001 55s.6 72.5 76.1 62.2 67.9 90.5 91.5 95.3 9S.4 96.6 96.7 96.1 96.7 96.7 90.7 96.7GE IS001 5.6 73.3 77.5 83.9 69.7 92.2 93.3 96.1 97.2 98.5 96.S 98.5 98.5 98.5 96.5 98.5IE 12001 451.9 73.6 76.0 65.5 90.2 92.7 93.8 96.6 97.7 96.9 99.0 99.0 99.0 99.0 99.0 99.0

bE 10001 5.9 73.8 78.2 65.s 90.5 92.8 95.0 96.9 98.0 99.2 99.3 99.3 99.3 99.3 99.3 99.3bE 9001 5.9 73.8 76.2 65.5 90.5 92.6 94.0 96.9 98.0 99.2 99.3 99.3 99.3 99.3 99.3 99.36E 601 %S.9 73.8 78.2 45.5 90.5 93.0 95.1 97.2 96.5 99.S 99.8 99.8 99.6 99.8 99.6 99.8I.E 13)0 95.9 13.6 78.2 85,S 90os 93.0 95.1 97.5 96.5 99°7 100.,0 100.0 100.0 100.0 100.0 100.0GE 6001 5S.9 73.8 78.2 65.5 90.5 93.0 95.3 97.4 98.5 99.7 300.0 100.0 100.0 100.0 100.0 100.0

GE 5001 4S.9 73.8 78.2 65.5 90.16 93.0 94.1 97. 98.S 99.7 100.0 100.0 100.0 100.0 300.0 100.0.E 5001 qS.@ 73.6 76.2 6.S 90.5 93.0 95.3 97.5 98.5 99.7 300.0 100.0 300.0 100.0 100.0 100.0

I.E 3001 55.9 73.8 76.2 651 90. 90 95.1 97. 96,5 99,7 300.0 100.0 102.0 30. 100.0 100,0I.E 2001 5.9 73.6 76.2 655 90.5 93.0 93.3 97.5 965 99.7 100.0 100.0 100.0 100.0 100.0 100.0GE 3001 4S.9 73.6 76.2 65.5 90.5 93.0 95.1 97.5 96.5 99.7 300.0 100.0 100.0 100.0 300.0 100.0

I.E 01 545.9 73.6 71.2 65$.5 90.5 93.0 94.1 97.5 96.5 99.7 300.0 300.0 300.0 300.0 300.0 100.0...........................................................................................................................

TOTAL NUMBER OF OBSERVATIONS: b151

t.

GLOBAL CLIMATOLOGY BRANCH PERCENTGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AIR MEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEL ML PERIOC OF RECORD: 77-86MONTH: AUG HOURSILSTI: 100-2300

................................................................................................CEILING VISIBILITY IN STATUTE MILES

IN I GE GE GE GE GE G GE GE GE GE GE GE GE GE GE GEFEET I 10 6 5 4 3 2 If? 2 1 112 I 1 / 1 3T/ 5/8 1/? 5116 1/4 0

..........................................................................................................................................

NO CEIL i 25.9 36. 39.2 44.1 47.3 47.9 48.9 50.4 50.7 51.6 51.9 51.8 51.8 51.8 51.8 51.8

GE 200001 28.8 40.9 43.8 49.6 53.3 54.1 55.3 56.9 57.2 58.8 5R.8 58.8 58.8 58.8 58.8 56.8GE ISBO00 28.8 40.9 43.8 49.6 53.3 54.1 55.3 56.9 57.2 38.8 54.8 58.8 58.8 58.8 58.8 58.8GE 160001 28.8 40.9 43.8 49.6 53.3 54.1 53.3 56.9 7.2 S8.8 5R.8 58.8 58.8 58.8 58.8 58.8GE 113001 29.1 N1.2 %44.1 9.9 53.6 54.4 55.6 57.2 57.5 59.1 59.1 59.1 39.1 59.1 59.1 59.1GE 120001 29.8 42.1 45.1 50.9 54.6 55.5 56.6 58.2 58.7 60.3 60.3 60.3 60.3 60.3 60.3 60.3

GE 100001 3t.4 50.4 53.9 60.0 63.6 6.5 65.9 67.5 6a.0 69.7 69.7 69.7 69.7 69.7 6.7 69.7GE 90001 35.7 52.0 55.7 6?.0 65.6 66.7 68.1 69.9 70.3 72.1 71.1 72.1 7Z.1 72.1 72.1 72.1GE 80001 37.8 55.9 60.1 67.2 71.0 72.1 73.5 75.3 75.7 77.6 77.6 77.6 77.6 77.6 77.6 77.6GE 70001 38.0 56.0 60.3 67.4 71.2 72.2 73.7 75.4 75.8 77. 7 77.7 77.7 77.7 77.7 77.7 77.7GE 60001 38.6 56.6 60.8 68.0 7t.R 72.8 74.2 76.0 l6.4 76.3 78.3 78.3 78.3 78.3 78.3 78.3

GE 50001 39.9 58.4 62.6 70.0 T3.8 7.b 16.3 78.0 78.5 80.3 80.3 80.3 80.3 80.3 80.3 80.3GE 45001 41.0 60.1 64.3 71.8 75.5 76-6 78.0 79.6 80.2 82.1 82.1 47.3 82.1 82.1 82.1 82.1GE 40001 43.4 63.5 61.1 75.3 79.2 80.2 81.7 83.6 84.0 85.9 85.9 85.9 85.9 85.9 85.9 85.9GE 35001 44.8 65.5 69.7 77.3 81.2 82.2 83.7 85.6 86.0 87.9 87.9 87.9 87.9 87.9 87.9 87.9GE 3C001 46.0 6b.b 71.0 78.6 82.7 83.7 85.2 87.3 87.8 89.7 89.7 89.7 89.7 89.7 89.7 89.7

GE 25001 46.7 68.0 72.2 79.9 84.1 85.3 86.8 89.1 89.7 91.7 91.7 91.7 91.7 91.7 91.7 91.7GE 20001 47.9 69.1 73.5 81.% 85.6 86.8 88.7 90.3 91.1 93.2 93.7 93.2 93.2 93.2 93.2 93.2GE 18001 48.2 70.3 74.7 82.7 86.9 88.1 89.S 91.8 92.6 9f46 94.6 94.6 94.6 94.6 94.6 94.6oE IOO 48.3 71.0 7S.4 83.8 88.1 89.5 91.0 93.41 94.2 96.2 96.2 96.2 96.2 96.2 96.2 96.2GE 12001 48.9 72.2 76.7 85.2 89.4 90.8 92.3 94.8 95.S 97.5 91,5 97.5 97.5 97.5 97.5 97.5

GE 10001 48.9 72.2 76.7 85.2 89.4 90.8 92.3 94.8 95.6 97.7 97.7 97.7 97.7 97.7 97.7 97.7GE 9001 48.9 72.2 76.7 85.2 69.5 91.0 92.4 9S.1 95.9 98.0 94.0 98.0 90.0 98.0 94.0 980GE 8001 48.9 72.2 77.0 85.4 90.0 93.4 92.9 95.5 96.4 9805 98.7 98.7 98.8 98.8 94.8 98.8GE 7001 49.1 72.3 77.1 85.9 90.4 91.8 93.4 96.1 97.1 99.6 99.7 99.7 99.9 49.9 99.9 99.9GE 6001 49.3 7Z.3 77.1 85.9 90.4 91.8 93.4 96.2 97.2 99.7 99.9 99.9 100.0 100.0 100.0 100.0

(.r tLO 49.1 72.3 77.1 85.9 90.4 91.8 93.4 96.2 97.2 99.7 99.9 99.9 100.0 100.0 100.0 100.06.. %00l 49.1 72.3 77.1 85.9 90.4 91.0 93.4 96.2 97.2 99.7 99.9 99.9 100.0 100.0 100.0 100.0GE 300 49.1 72.1 77.1 85.9 90.4 91.8 93.4 96.2 97.2 99.7 99.9 99.9 100.0 100.0 100.0 100.0bE 2001 49.1 72.3 77.1 85.9 90.4 91.8 93.4 96.2 97.2 99.7 99.9 99.9 100.0 100.0 100.0 100.0GE 1001 49.1 72.3 71.1 85.9 90.4 91.8 93.4 96.2 97.2 99.7 99.9 99.9 100.0 100.0 IUO.0 100.0

#.E 01 49.1 72.3 77.1 85.9 90.4 91.6 93.4 96.2 97.2 99.7 99.9 99.9 300.0 300.0 100.0 100.0..........................................................................................................................................


0 dlmmmli lmmm m llm m mli

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZERIKIE7 NL PERIOD OF RECORO: 77-78,80-86MONTH: AUG HOURSILS7I: 2100-2300


I t I GE GE GE GE GE Gr GE GE BE GE GE GE GE GE GE GEFEET I 10 6 5 N 3 2 1/2 2 1 1/2 1 1/4 1 319 5/8 I/z 1/16 1/4 0

NO CEIL 1 24.9 38.1 92.5 N8.7 52.6 59.9 $5.1 57.3 59.1 S9.0 59.5 59.5 S9.S 59.5 59.S 59.5

(E 200001 26.9 N0 .7 5.8 52. 56.9 S8. 59.2 61.5 62.5 63., 63.9 63.9 63.9 63.9 63.9 63.9GE 180001 26.9 40.7 45.8 52.9 56.4 58.1 59.2 61.5 62.5 63.9 63.9 63.9 63,9 63.9 63.9 63.9GE 16rO0 26.9 N0.7 95.8 S2.9 56.4 58.9 59.2 61.S 62.5 63.9 63.9 63.9 63.9 63.9 63.9 63,9GE 19000l 27.1 40.8 96.0 52.6 56.6 58.6 59.1 61.7 62.6 63.6 69. 69.1 69.1 69.1 69.1 69.1GE 120001 27.7 91.9 47.3 53.7 57.7 59.9 60.6 63.0 63.9 69.8 61.9 65.4 6S. 65.9 65. 65.9

GE 100001 29.3 95.6 53.9 S8.4 62. 69.7 65.1 68.3 69.2 70.1 70.7 70.7 70.7 70.7 70.7 70.7UE 90001 30.96 97.3 52.6 60.3 69.3 bb.5 67.2 70.1 71.2 72.3 72.9 72.9 72.9 72.9 72.9 72.9GE 80001 32.4 N9.5 Sj.9 62.b 66.7 68.9 69.6 72.S 73.6 75.1 75.6 75.6 75.6 75.6 75.6 75.66E 700o 32.9 99.5 55.1 63.U 67.1 69.2 10 72.9 79.0 75.5 76.0 76.0 76.0 76.0 76.0 76.0GE 60001 33.0 50.9 56.0 63.9 67.9 70.1 70.9 73.8 79.9 76.9 76.9 76.9 76.9 76.9 76.9 76.9

GE 50001 39|. 51.6 57.7 65.8 69.8 72.0 72.7 75.6 76.7 78.2 74.0 78.8 78.8 78.8 78.8 78.8GE 4!O00 35.3 s3.5 59.9 68.3 72.3 79.5 75.3 78.2 79.3 00.8 91.3 81.3 81.3 P1.3 81-3 81.3GE 9C001 38.1 57.0 63.9 71.8 7S.P 76.0 78.8 61.7 82.8 99.2 A9.8 89.8 89.8 89.8 89.8 99.8

GE 35001 38.6 58.1 69.8 73.6 77.7 79.9 80.6 83.5 89.6 86.1 86.6 96.6 86.6 86.6 86.6 86.6GE 30001 41n. 60.3 631 77.3 81.7 q3.9 89.6 87.S 88.6 90.1 90.7 90.7 90.7 90.7 90.7 90.7

GE 25001 90.7 61.5 69.6 78.9 83.3 85.5 86.3 89.2 90.3 91.8 9'.3 92.3 92.3 92,3 92.3 92.3GE 20001 190.8 61.9 70.0 79.3 84.1 86.9 87.2 90.3 91.2 92.7 93.2 93.2 93.2 93.2 93.2 93.2GE 18001 91.2 42.5 7U.5 79.9 89.6 87.0 87.7 90.1 91.8 93.2 91.8 93.8 93.8 93.8 93.8 93.8

.E 15001 91.2 62.8 7D.9 80.2 85.2 87.7 88.5 91.6 92.7 99.1 99.7 99.7 99.7 99.7 94.7 99.7

GE 12001 91.6 63.2 71.2 81.0 85.9 88.5 89.2 92.1 93.8 95.9 96.0 96.0 96.0 96.0 96.0 96.0

bE 10001 91.6 63.2 71.9 91.1 86.3 8.8 89.6 93.0 99.1 95.8 96.3 96.3 96.3 96.3 96.3 96.3GE 900l 91.6 63.9 71.6 81.3 87.n 89.6 90.3 93.8 99.9 96.5 97,1 97.1 97.1 97.1 97.1 97.1

bE POOl 91.6 63.6 71.8 81.9 87.5 90.3 91.0 99.5 95.6 97.3 97.8 97.8 98.0 98.0 98.0 98.0GE 700 91.6 63.6 71.8 82.1 87.7 90.5 93.9 95.2 96.7 98.4 99.1 99.3 99.3 99.3 99.3 99.3GE 600 93.6 63.6 72.0 82.2 87.9 90.1 91.8 95.6 97.2 98.9 99.6 99.6 99.8 99.8 99.8 99.8

GE S0 93.6 63.6 72.0 82.2 87.9 90.7 93.8 95.8 97.3 99.1 99.8 99.8 100.0 300.0 100.0 100.0GE 9001 91.6 63.6 77.0 82.2 87.9 90.7 91.8 95.8 97.3 99.1 99.8 99.8 100.0 100.0 100.0 100.0( 3001 91.6 63.6 72.j 82.2 87.9 90.7 91.8 95.9 97.3 99.1 99.8 99.8 300.0 300.0 300.0 100.0

GE 2001 93.6 63.b 72.0 92.2 87.9 90.1 91.8 95.8 97.3 99.1 99.8 99.8 100.0 100.0 100.0 300.0GE tool 93.6 63.6 72.0 82.2 87.9 90.7 91.8 95.8 97.3 99.3 99.8 99.8 100.0 300.0 100.0 300.0

GE al 93.6 63.6 72.U 82.2 87.9 90.7 91.8 95.8 97.3 99.1 99.8 99.8 300.0 100.0 100.0 100.0

J0IAL NUMBER OF OBSERVATIONS: %96

-- - mm N m L' lmm mEmL.

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FRQUENCY OF OCCURRENCE Of CEILING VERSUS VISIBILITYuSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEr NL PERIOD OF PECORD: 77-86MONTH: AUG HOURSILSTI: ALL

C.ILN VISIBIL I*T TAT'UE MILS, * * .......................................IN a ,E GE GE GE GE G: GE GE GE GE GE GE GE GE GE GE

FEET i 10 6 5 6 3 2 If2 2 1 1/2 I 3/4 1 3/4 5/8 372 5/16 1/4 a

NO CEIL I 16.2 29.5 31.7 3b.% 39.9 61.1 T 2.9 15.3 66.0 al.1 7.6 67.T 67.8 8.0 8.1 68.3

uc 200001 ZO.4 33.1 35.6 63.1 46.8 '6.6 68.2 50.8 51.7 52.9 53.5 S3.5 53.1 53.9 $6.0 54.juE 160001 20.6 33.1 35.5 0.7 66.6 66.8 68.2 SO.8 51.7 S2.9 53.5 53.5 53.7 53.o9 5.0 54.3GE 160001 20.6 33.1 35.6 60.7 66.6 66.6 46.2 50.6 61.1 52.9 53.5 63.5 53.1 53.9 56.0 5.3GE lCOn 20.5 33.2 35.7 4g.9 45,0 67.D 8.6 51.1 52.0 S3.2 53.7 53.8 56.0 56.2 56.3 56.6GE 120009 20.9 33.9 36.5 61. 65.9 96.0 69.6 52.1 53.0 56. 546.9 54.9 55.1 55.6 55. 55.1

GE 100001 23.9 39.1 42.1 68.1 52.7 66.8 56.3 59.3 60.3 61.7 62.3 62.3 62.5 62.8 62.9 63.2GE 9COO 26.6 60.5 63.6 49. 54.S 56.6 58.2 61.3 62.4 63.6 66.6 66.5 64.7 65.0 65.0 65.6bt 6010| 25.9 62.8 66.2 52.6 57.3 59.5 61.2 66.64 65.5 67.0 67.6 61 67.9 68.2 68.2 68.6GE 70001 26.0 62.9 6.6 52.9 S.? 59.9 61.5 66.7 65.8 67.3 66.0 66.0 68.2 68.5 68.6 68.9GE 60001 26.2 63.3 66.8 53.3 58.1 60.3 61.9 65.2 66.3 67.8 6A.6 66.5 68.7 68.9 be. 0 69.3

GE 60001 21.2 66.8 96. 55.1 60.p 62.3 63.9 67.2 66.3 69.9 70.S 70.6 70.0 71.0 71.1 711GE 6%00 26. 6.7 53.5 57.3 62.2 6.S5 66.1 69.5 70.6 72.1 72.8 72.9 73.1 73.3 73.6 73.7GE 6uo9 30.9 50.8 5#.7 61.7 66.7 69.0 70.7 76.2 15.3 76.9 77.6 1.6 77 . 78.1 76.2 78.5GE 3s3ol 32.6 5.1 61.2 66.3 69.6 71.6 73.5 77. 18.2 79.7 60.6 80.5 60.? 60.9 81.0 61.3GE 30001 36.3 56.6 6D.7 68.1 73.6 75.8 77.6 81.2 62.6 03.9 66.6 8.7 86.9 65.1 85.2 85.

GE 25009 35.6 58. 62.8 70.6 75.1 78.2 80.0 63.7 66.6 86.4 87.1 67.2 87.4 A7.6 87.7 88.0GE 20001 36.6 60.1 6%6. 72.6 16.0 80.5 62.3 66.0 67.3 66.9 69.b 69.1 69.9 90.2 90.2 90.6I.E 27009 37.0 61.3 66.0 76.0 19.b 82.2 66.0 87.8 89.1 90.7 91.5 93.6 91.6 92.0 92.1 92.4GE 15009 37.6 62.4 67.3 75.5 81. 8.0 65.9 69.9 91.2 92.6 91.6 93.1 93.9 9%.1 96.2 96.5(E 12001 37.6 63.2 69.? 76.5 82.6 85.1 87.0 91.1 92.6 96.2 9.0 95. 95.3 05.6 95.7 96.0

OL IC001 37.6 63.3 66.6 76.7 820 65.5 67.6 91.6 92.9 96.7 95.5 95.6 95.6 96.1 96.2 96.5GE 9009 37.8 63.5 6.6 77.0 63.2 85.9 67.6 92.0 93.6 95.2 96.1 96.3 96.5 96.7 96.8 97.1GE 6009 37.8 63.6 6.6 77.3 83.6 66.3 @a.2 92.7 96.1 96.0 97.1 97.2 97.5 91.7 97.6 98.1GE 7001 37.8 63.7 66.9 17.6 q.U 6.1 88.7 93.2 96.7 96.6 97.8 97.9 98.2 98.5 96.5 98.9GE 6001 37. 63.7 69.0 77.6 66.7 67.0 8.9 93.6 95.3 97.1 98.3 96.6 98.7 99.0 99.0 99.6

GE c00l 17.8 6T.1 69.0 7.6 66.7 87.0 68.9 93.8 95.3 97. 98.5 980.7 99.0 99.2 99.3 99.6br 600i 37.8 63.7 69.0 7.8 86.2 81.0 89.0 93.8 95.6 97.5 96.7 98.8 99.1 99.6 99.6 99.6GE 3009 37.6 63.7 69.0 11.6 66.2 81.0 69.0 93.6 95.0 97.5 9q.7 98.9 99.2 99.6 99.5 99.8GE 2009 37.8 63.7 69.0 77.8 66.2 67.0 69.0 93.8 91.6 97.5 98.7 98.9 99.2 99.6 99.5 99.9GE 300 37. 63.7 69.0 77.8 86.- 8.0 69.0 93.6 96.6 97.5 907 96.9 99.2 99.5 99.5 300.0

GE al 37.8 631. 69..i 77.8 8.' 87.0 69.0 93.6 96.6 97.6 90.7 96.9 99.2 99.5 99.5 100.0

TOTAL NU4NEB Of OBSERVATIONS: 6630

LOBAL CLIMATOLOGY BRANCH PEkCENTAGE FREQUENCY OF OCCURRENCE OF CFILING VrRSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE: NL PEPIOD OF RECORD: 80-86

MONTH: SEP HOURS(LSTI: 000-0200

CEILING VISIBILITY IN STATUTE MILLES

IN I GE GE GE GE GE Gr GE GE GI GE L GE GE GE GE 6EFEET I 10 6 6 4 3 2 If2 2 , 12 I 1/4 1 3/4 518 112 S/16 1/4 0

.. .. .. . .. . ... . . . . . . . .. . . . . . .... ' o ' . .... ... ' .. . . . . . . . . .. . . . . . . . .........'' '..........

NO CEIL I 18.5 28.6 31.5 39.9 43.5 45.2 45.9 48.0 49.3 %0.9 1.,5 52.0 52.8 53.0 53.1 53.5

GE 20rOl 18.6 30.1 36.2 41.5 45.4 47.41 48.5 50.7 52.4 54.2 54.A 15.4 56.1 56.3 56.5 56.6

GE 180001 18.6 3U.1 36.2 41.5 45.4 47.4 48.5 50.7 52.4 51.2 54.8 65.4 56.1 56.3 56.5 56.8

cE 160001 18.6 30.1 36.2 41.5 4s.4 47.4 48.5 50.7 52.4 54.2 54.8 55.4 56.1 56.3 56.5 56.8GE 14000| 18.8 30.3 36.3 41.7 45.6 47.6 48.7 50.9 52.6 5.4 5.0 55.5 56.3 565 56:6 57.0GE 12000V 18.8 30.6 35.7 42.1 45.,9 480 419: 51.3 53.0 54.8 S.4 55.9 56.6 56.8 57.0 57.4

.E 100001 20.8 34.6 -4.6 46.1 5O.4 52.4 53.5 56.1 57.9 69.8. b6.3 61.1 bl.8 62.0 62.2 62.5GE 90001 20.8 34.9 41.0 46.5 50.7 52.8 53.9 56.5 58.3 60.1 6f.7 62 .2 6.4 62.5 62:9

E 80001 21.2 36.5 42.6 8.2 52.4 54.4 55.5 58.1 60.0 61.8 62.4 63.1 63.8 64.0 64.2 64.6GE 7CO 21.2 36. 42.8 48.3 52.6 54.6 55.7 58.3 60.3 62.0 67.5 63.3 64.0 64.2 64.4 64.8GE 60001 21.2 36.7 42.8 48.5 53.1 55.2 56.3 58.9 60.7 62.5 63.1 63.8 64.6 64.8 64.9 65.1

GE 50001 22.1 40.6 47.0 52.8 57.4 59.4 60.5 63.1 6q.9 66.8 67.3 68.1 68.8 69.0 69.2 69.6,E 4001 22.3 42.3 49.3 55.2 S9.8 61.8 62.9 65.5 67.3 69.2 69.7 70.5 1.2 71.4 71.6 72.0

GE 40001 24.2 46.5 53.5 60.3 65.9 67.9 69.0 71.6 73.6 7S.S 76.n 76.8 77.5 77.7 77.9 78.2GE 36001 25.6 48.5 55.7 62.9 68.5 70.5 73.6 74.4 76.4 78.2 T8.8 79.5 80.3 R0.4 80.6 81.0GE 300tl1 26.8 50.4 57.7 64.9 70.9 72.9 74.0 76.9 19.0 80.8 81.4 82.3 82.8 83.0 83.2 83.6

.E 260O01 27.1 51.5 58.9 66.1 ?2.3 74.2 75.5 78.4 80.4 82.3 87.8 83.6 84.3 84.5 84.7 85.1GE 20001 27.9 52.6 63.0 67.5 73.8 75.8 77.1 80.3 82.1 83.9 84.5 8S.2 86.0 86.2 86.3 86.7GE 14001 28.2 63.1 61.3 68.8 75.5 77.5 78.8 81.1 83.8 85.6 86.2 46.9 87.6 87.8 89.0 86.4GE I6001 28.4 54.1 62.7 70.5 77.3 79.3 80.6 83.6 85.6 87.5 84.0 88.7 89.5 89.7 89.9 90.2GE 1200| 29.3 56.5 65.3 73.4 80.3 82.3 83.6 86.5 88.7 90.6 93.1 93.9 92.6 92.8 9T.O 93.4

GE 10001 29.3 56.5 65.7 74.0 81.2 83.2 84.5 87.5 69.7 91.6 97.3 93.0 93.7 93.9 94.1 q4.5GE 9001 29.3 56.6 65.9 74.2 81.5 83.8 85.2 88.2 90.6 92.6 91.4 94.1 94.8 95.0 95.2 95.6GE BOol 29.3 56.5 66.1 74.5 82.1 84.3 85.8 88.7 91.1 93.2 9!.9 94.6 95.4 95.6 9s.8 96.1GE 7001 29.3 56.8 66.6 75.3 83.0 85.2 86.9 90.4 93.4 95.4 96.1 96.9 97.6 97.8 98.0 96.3GE 6001 29.3 56.8 66.6 75.3 83. 85.2 86.9 90.4 93.5 95.8 96.5 97.2 98.

0 98.2 99.3 98.7

I.E 6O| 29.3 66.8 66.6 75.3 83.1 85.2 86.9 90.4 93.7 95.9 96.7 97.4 98.2 08.3 98.5 98.9

GE 4G0o 29.3 56.8 6b.6 75.3 83.0 85.2 86.9 90.4 93.7 96.1 96.9 97.6 98.3 98.5 98.7 99.1GE 3001 29.3 56.8 66.6 75.3 83.0 46.2 86.9 90.4 93.7 96.5 97.2 98.0 98.7 98.9 99.1 99.46 2001 29.3 56.8 66.6 7S.3 83.r 85.2 86.9 90.4 93.7 96.s 97.? 98.o 96.7 98.9 99.1 99.4

GE 1001 29.3 56.8 66.6 75.3 83.: 85.2 86.9 90.4 93.7 96.s 97.2 98.0 98.7 99.1 99.3 99.8

GE 0l 29.5 67.0 66.8 75.5 83.7 85. 87.3 90.6 93.9 96.7 97.4 98.2 98.9 99.3 99.4 100.0

...............................................................................................................................................


-4"

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FR7QUENCY or OCCURRENCE OF CEILINF VERSUS VISIBIL17YUSAFETAC FROM HOURLY OBSERVATIONS

AIR wEATHER SERVICE/ MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZET NL PERIOD OF RECORD: 80-86MONTH: SEP HOURS(LST): 0300-0500

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE 6E GE G. GE GE GE GE CE GE GE GE GE GE

FEET 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 5/8 1/2 S/16 14 a

NO CEIL 1 17.4 28.0 32.2 35.5 38.ft 39.0 39.4 42.5 43.4 48.6 45.4 45.9 46.5 46.9 47.5 49.6

GE 200001 18.0 29.3 33.6 38.2 41.3 82.5 43.2 46.3 47.3 48.8 49.4 50.0 50.6 51.0 51.5 53.9OE 18no0 18.0 29.3 33.6 38.2 41.3 42.5 43.2 46.3 47.3 48.8 49.4 50.0 50.6 51.0 51.5 53.96E 160001 18.0 29.3 33.6 36.2 41.3 125 43.2 46.3 47.3 48.8 49.4 50.0 50.6 51.0 51.5 53.9GE 140001 18.0 29.3 31.6 38.2 41.3 02.S 43.2 46.3 47.3 48.8 49.4 50.0 50.6 5.,0 51.5 53.9GE 120001 18.0 29.3 33.6 38.2 41.3 q2.S 45.2 46.3 47.3 48.8 4q9.4 50.0 50.6 51.0 51.5 53.9

GE 100001 19.3 31.9 36.9 42.1 45.6 46.7 47.5 51.0 52.1 53.7 5.2 54.8 55.4 55.8 56.4 58.7E 90001 19.3 31.9 37.3 42.7 46.1 87.3 48.1 51:5 52.7 54.2 5,:S 55.4 6. 56.4 56.9 59.3

6E 80001 19.5 32.2 37.8 43.2 46.7 47.9 48.6 52.1 53.3 55.0 5.6 56.2 56.9 57.3 57.9 60.2GE 70001 19.5 32.2 37.8 43.4 46.9 48.3 49.0 52.5 53.7 55,4 56.0 56.6 57.3 57.7 58.3 60.6UE 60001 19.5 32.2 37.8 43.4 46.9 48.6 49.8 52.9 54.1 55.8 56.4 56.9 57.7 S8.1 98.7 61.0

GE 50001 21.4 34.7 40.9 47.3 50.4 52.7 53.5 57.1 58.3 60.0 60.6 61.2 62.0 62.4 62.9 65.3GE 45001 2Z.6 3619 43.4 50.4 54.1 56.2 56.9 60.6 61.8 63.5 64.1 64.7 65.4 65.8 66.8 68.7

GE 40001 25.1 42.1 48.8 56.8 60.6 62.7 63.5 67.2 68.3 TO1 70.7 71.2 72.0 72.4 73.0 75.3GE 35001 2S.9 43.4 51.2 59.3 63.1 65.3 66.0 69.7 70.8 72.6 73.

2 73.1 74.5 74.9 75.5 77.8

bE 3CO01 27.4 16.5 5.2 62.5 67.0 69.3 30.1 74.3 75.7 77.4 78.0 78.6 79.3 79.7 80.3 e2.6

GE 25001 28.6 48.6 56.9 65.3 69.9 72.2 73.0 77.4 78.8 80.5 81.2 81.7 82.4 82.8 63.4 R5.7GE 20001 28.6 48.6 S6.9 65.3 69.9 72.2 73.2 78.0 79.3 81.1 81.7 82.2 83.0 P3.4 84.0 6.3GE 18001 29.5 51.u 59.5 68.0 72.6 75.1 76.1 80.9 82.2 84.0 84.6 85.1 85.9 86.3 86.9 89.2&E soo 29.. 51.7 60.4 68.9 73.6 76.1 77.0 81.9 83.4 85.1 85.7 86.3 87.1 A7.S 88.0 9U.3

* GE 12001 29.5 52-9 61-6 71.2 76.1 78.6 79.5 84.6 86.3 88.0 88.6 89.2 90.0 90.3 91.9 93.2

* GE 10001 29.5 52.9 62.0 71.8 76.8 79.3 80.3 85.5 87.3 89.0 89.6 90.2 90.9 91.3 91.9 94.2GE 9001 29.5 52.9 62.2 72.0 77.0 79.5 80.7 85.9 87.6 89.4 90.0 90.5 91.3 91.7 92.3 94.bGE 8003 29.S S2.9 62.5 73.0 78.7 80.s 81.7 87.1 89.0 90.7 91.3 91.9 92.7 93.1 93.6 95.9GE 7001 29.5 s3.3 67.9 73.6 ?.8 81.3 82.4 88.4 90.5 92.5 93.1 93.6 94.8 9,48 95.4 97.7GE 6001 29.5 53.3 62.9 73.7 79.? 81.9 83.0 89.46 91.5 93.4 94.0 94.6 95.4 95.8 96.3 98.6

GE 5001 29.5 53.3 62.9 73.7 79.2 91.9 83.0 89.4 91.S 93.4 94.0 94.6 95.1 95.8 96.3 98.6GE 40O 29.5 53.3 62.9 73.7 79.2 81.9 83.0 89.4 91.5 93.4 94.0 94.6 95.4 95.8 96.3 98.6GF 3U0 29.S 53.3 62.9 13.7 79.2 81.9 83.0 89.4 91.5 3.14 94.0 94.6 95.6 95.9 96.5 98.8GE 2001 29.5 53.3 62.9 73.7 79.2 81.9 83.0 89.4 91.5 93.4 94.0 94.6 95.6 95.9 96.5 99.0GE 1001 29.5 93.3 62.9 73.7 79.2 41.9 83.0 89.4 91.5 93.4 94.0 94.6 9S.6 96.1 96.7 100.0

6E 01 29.5 53.3 62.9 73.7 79.2 81.9 83.0 89.4 91.5 93.4 94.0 94.6 95.6 96.1 96.7 100.0

TOTAL NUMPER OF OBSERVATIONS: %18

*

GLOBAL CLIMITOLOGY BRANCH PERCENIAGE FREQUENcY OF OCCURqENCE OF CEILING VERSUS VISIBILITY

USAFEIAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEr NL PEPIOD OF RECORD: 77-86MONTH: SEP HOURSILSTI: 0600-000

.............................................................................. ..... ....................................CEILING VISIBILITY IN STATUTE MILLS

IN GE GE GE GE GE Gr 6E GE GE GE GE GE GE GE GE GEFEET 1O 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/8 112 S/16 1/4 0

..............................................................................................................................................

NO CEIL 1 11.6 17.4 20.3 24.4 25.4 26.6 27.3 30.5 31.8 32.4 37.9 33.5 34.5 35.2 35.2 36.1

GE 200001 13.1 20.8 24.0 28.2 30.2 31.1 31.9 35.5 37.1 38.1 38.7 39.4 40.5 41.3 41.3 44.5GE 180001 13.1 20.8 24.0 26.4 30.3 31.3 32.1 35.6 37.3 36.2 3t.9 39.5 40.6 41.5 41.5 44.7GE 163001 13.1 20.8 24.0 26.4 30.3 31.3 32.1 35.6 37.3 38.2 39.9 39.5 40.6 41.5 41.5 44.7GE 140001 13.1 20.8 21.0 28.4 30.3 31.3 32.1 35.6 37.3 38.2 3A.9 39.5 40.6 41.5 41.5 44.7GE 120U01 13.2 21.6 25.2 29.5 31.5 32.4 33.4 36.9 8.5 39.6 40.5 41.3 42.4 43.2 43.2 46.5

CE 100001 14.4 25.2 29.1 33.7 36.0 36.9 37.9 41.9 43.7 t5.0 45.8 46.6 47.7 48.S 48.5 51.8GE 90001 14.5 27.3 31.1 35.8 38.2 39.4 4 0.3 44.5 46.3 47.6 49.4 49.2 50.3 51.1 51.1 54.4GE 6000 15.0 28.4 32.4 37.6 40.2 41.3 42.6 47.1 48.9 50.3 51.3 52.1 53.2 54.0 54.o 57.3

bE 70001 I.0 28.9 33.1 36.4 &1.0 42.1 43.4 47.9 49.7 51.1 52.1 52.9 54.0 54.8 54.8 56.1GE 60 0 1;.2 29.4 33.5 39.0 41.6 42.7 44.0 46.5 50.3 51.6 52.9 53.9 55.0 55.8 55.8 59.0

6E 50001 16.0 31.5 35.6 41.3 44.2 45.5 46.8 51.5 53.2 54.7 S.8 56.8 57.9 56.7 58.7 51.9GE '4501 16.9 34.0 38.2 44.0 46.9 46.4 49.7 54.4 S6.0 57.6 58.7 59.7 60.8 61.6 61.6 64.66E 40001 11.0 36.6 41.0 47,6 51.1 53.1 54.7 60.0 b.8 63.2 64.4 65.3 66.6 67.4 67.4 70.6GE 35001 19&8 38.5 43.1 49.7 53.5 55.6 57.3 62.6 64.4 65.6 66.9 67.9 69.2 70.0 73.0 73.2GE 300012 0. 0.3 49.8 52.1 56.3 56.4 60.2 65.5 67.3 68.7 69.8 70.8 72.1 72.9 72.9 76.1

GE 25001 23.1 41.9 46.6 54.0 58.4 60.6 62.4 68.1 69.8 71.3 72.4 73.4 74.7 75.5 75.5 76.7bE 2001 22.4 44.2 49.0 511 61.6 63.9 65.6 71.5 73.2 74.7 75.6 76.8 76.1 78.9 76.9 62.1GE 17001 24.0 46.6 51.6 59.7 64.4 66.6 68-4 74.5 76.3 77.7 74.9 79.6 a 1.1 81.9 8,9 45.2

GE 15001 24.7 48.4 53.2 61.6 66.9 69. 11.1 71.4 19.2 80.6 1.19 92.7 64.0 44.6 64.8 68.1GE 1200 25.0 49.0 54.0 63.1 68.5 71.0 72.7 79.0 do.6 42.3 63.4 84.4 65.6 66.5 66.5 69.7

GE 100 25.0 49.0 54.0 63.2 68.9 71.5 73.2 79.5 63.5 82.9 84.0 85.0 86.3 87.1 67.1 90.3GE 9001 25.3 49.4 54.S 63.7 69.5 72.1 73.9 80.3 62.4 83.9 85.0 86.0 87.3 88.1 88.1 91.3GE 8001 25.3 49.4 54.5 63.7 70.3 72.9 74.6 81.5 64.0 A5.6 s.3 8.4 69.7 90.5 90.5 93.7GE 7U0 25.3 49.4 54.5 64.0 70.5 73.5 75.5 82.3 85.0 8.6 8.2 89.4 90.6 91.5 91.5 94.7GE 6001 25.3 49.4 54.5 64.0 70.f 73.7 75.6 82.6 65.S 97.3 88.7 90.0 91.3 92.3 92.1 95.3

bE 5001 25.3 49.5 54.7 64.2 71.0 74.0 76.0 62.9 85.6 87.6 89.0 90.3 91.6 92.4 92.4 95.6GE 4001 25.3 49.5 54 .7 64.2 71.3 74.0 76.0 62.9 65.6 67.6 69.4 90.6 92.3 93.1 93.1 96.3GE 3001 25.3 49.5 S4.7 64.2 71.1 74.2 76.1 83.1 86.0 67.7 69.5 90.8 92.4 93.6 93.4 96.9UE 2001 25.3 49.5 54.7 64.2 71.1 74.2 76.1 83.1 86.0 87.7 69.5 90.6 92.4 93.7 94.0 08.2GE lOl 25.3 49.5 54.7 b4.2 71.1 74.2 76.1 63.1 86.0 87.7 89.5 90.8 92.4 93.7 94.0 99.4

GE M9 25.3 49.5 54.7 64.2 71.1 14.2 76.1 63.1 66.0 87.7 69.5 90.8 92.4 93.7 94.0 100.0

..........................................................................................................................

T03AL NUMBER OF OPSERVAIIONS, 620

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR wEATHER SERVICE/IMAC

STATION NUMBER: 063250 STATION NAME: zIFRIKZE NL PERIOC OF PECOBO: 7T-78.O-86MONTH: SEP- HOURS(LSTI: 0900-1100

CEILING VISIBILITY IN STATUTE MILES""

IN I GE GE GE GE GE G GE GE GE GE GE GE GE GE GE GEFEET I 10 6 5 N 3 2 |!2 2 1 112 1 1/4 1 Y/4 5/8 112 5/16 1/4 0.. . . . . . . . . ....°. . . . * ,... ... . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . ............,......,.,*, , . ,. ... , ..,..

NO CElL I 11.8 18.3 23.2 22.9 24.5 25.9 26.2 28.1 28.9 30.3 33.8 31.9 32.1 32. 32.4 32.6

L.E 200001 16.3 26.1 29.4 32.3 34.1 35.6 36.0 38.3 39.2 40.7 41.2 42.4 42.5 42.9 42.9 93.0GE 180001 16.3 26.1 28.9 32.3 34.1 35.6 36.0 38.3 39.2 40.7 41.2 42.4 42.5 42.9 42.9 93.0(,E 16C00 1 6.3 26.1 2V.4 32.3 34.1 35.6 36.0 38.3 39.2 40.7 41.2 42. 42.5 42.9 42.9 N3.06E 14OOI 16.3 26.1 28.4 32.3 34.1 35.6 36.0 38.3 39.2 40.7 41.2 42.4 42.5 42.9 47.9 93.0GE 120001 16.6 27.9 33.3 34.8 37.0 38.5 38.8 41.2 42.9 43.9 49.9 95.5 45.7 46.1 46.1 96.2

GE IOOUoI 19.0 32.9 35.8 40.7 4 3 .2 44.7 45.2 48.1 49.2 50.9 51.4 52.6 52.9 53.3 53.3 53.4GE 9V0t1 21.5 3b.5 39.3 44.N 46.9 NA. N 48.9 51.8 52.9 S4.6 55.1 56.3 56.6 57.0 57.0 57.1

ZE 80001 22.5 38.5 91.3 47.1 50.1 51.9 52.6 56.I 57.3 59.3 59.8 61.0 61.3 61.7 61.7 61.8bE 700 1 22.T 38.7 41.5 47.2 50.9 52.3 53.1 56.6 57.8 59.8 60.3 61.5 61.8 62.2 62.2 62.9GE 60001 22.5 38.8 41.8 47.7 50.9 52.8 53.6 57.1 58.3 60.3 60.8 62.2 62.5 62.9 62.9 63.0

.E So00l 22.9 40.3 43.7 49.7 53.4 55.3 56.1 59.7 60.8 63.0 63.5 64.9 65.2 65.5 b5.5 65.7GE 45001 24.0 42.2 45.7 52.1 56.0 57.8 58.8 62.4 63.S 65.7 66.2 67.6 67.9 68.2 68.2 68.4GE 40001 25.9 46.2 49.9 57.1 61.S 63.5 64.7 68.2 69.6 71.8 72. 3 73.6 73.9 74.3 74.3 74.5GE 35001 26.2 47.2 53.9 56.5 62.9 64.9 66.2 69.9 71.3 73.4 73.9 75.3 75.6 76.0 76.0 76.1GE 30001 27.1 49.4 53.3 61.0 65.7 67.7 69.1 72.8 74.1 76.5 77.0 78.3 78.7 79.0 29.0 79.2

GE 2SO01 28.4 51.4 55.3 63.4 68.1 70.1 71.4 75.1 76.5 78.8 79.3 80.7 81.0 81.3 81.3 81.5GE 20001 29.6 53.1 57.0 65.2 70.6 72.6 73.9 77.8 79.2 81.5 82.2 83.5 83.9 R4.2 84.2 84.4GE 18001 30.3 55.L 59.2 67.6 12.9 75.1 76.5 80.3 81.7 84.0 84.7 86.1 86.4 86.7 86.7 T 6.9

GF 15011 30.9 56.6 62.8 69.2 74.8 77.0 78.3 82.4 83.7 86.1 86.7 88.1 89.4 88.7 89.7 88.9GE 12001 31.3 57.5 61.7 70.4 76.0 78.2 79.5 83.7 85.4 87.7 89.4 89.7 901.1 90.4 90.4 90.6

6E 10001 31.3 57.5 61.7 70.6 76.1 78.8 80.2 84.5 86.2 8.6 89.2 90.6 90.9 91.3 91.3 91.4GE 9001 31.3 57.8 62.2 71.3 76.- 79.7 81.0 85.4 87.1 89.4 90.1 91.4 91.8 92.1 92.1 92.3GE 8oot 31.3 ST.6 67.2 71.3 77.1 80.0 81.3 8b.2 88.1 90.6 91.3 92.6 92.9 93.3 93.3 93.4

GE 7001 31.3 57.8 62.2 71.6 77.. 80.3 81.7 86.9 88.7 91.4 97.4 93.9 94.S 94.8 94.8 95.0GE 6001 31.3 57.8 62.2 72.1 77.8 80.8 82.4 87.7 89.6 92.3 93.4 95.0 95.5 95.8 95.8 96.0

GE 500I 31.3 57.8 62.2 72.1 77.8 80.8 82.4 87.7 89.7 92.4 93.8 95.5 96.0 96.3 96.5 96.6

(E qoo 31.3 57.8 62.2 72.1 78.2 81.2 82.7 88.2 90.3 92.9 95.0 97.1 97.6 98.0 98.3 98.7GE 3001 31.3 57.8 62.2 72.1 T.2 81.2 82.7 88.2 90.3 92.9 95.0 97.1 97.6 98.2 98.7 99.0GE 2001 31.3 57.8 62.2 72.1 78.2 81.2 82.7 88.2 90.3 92.9 95.0 97.1 97.6 98.3 99.2 99.S

GE 1001 31.3 57.8 62.2 72.1 74.' 81.2 82.7 88.2 90.3 92.9 9S.0 97.1 97.6 98.3 99.2 99.8

GE 01 31.3 57.8 62.2 72.1 78.2 81.2 82.7 88.2 90.3 92.9 95.0 97.1 97.6 98.3 99.2 100.0


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOU4LY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMPER: 063250 STATION NAME: ZIERIKZEC NL PERIOD OF RECORD: 77-86MONTH: SEp HOURS(LSTI: 1200-1400

- . . . . . ... . . . . . . . . . . . . . . . . . . . . . .

CEILING VISIBILITY IN STATUTE MILESIN GE GE GE GE GE ST GE GE GE GE GE GE GE GE GE GE

.................................................................................................................................................FEET I10 6 5 4 3 2 ]12 2 I 1/2 1 1/4 1 1/4 5/8 1/2 5/16 11/4 0

NO CEIL 1 18.2 26.7 27.8 30.1 31.7 32.9 34.3 35.9 36.2 37.6 38.2 38.5 38.5 38.5 34.5 38.5

GE 20001 23.6 35.2 37.1 40.8 42. 44.2 45.7 47.6 48.1 49.5 50.2 50.5 50.5 50.5 50.5 S0.5GE 180001 23.6 35.2 37.2 41.0 43.0 44.4 45.9 47.8 48.2 49.6 50.4 50.7 5G.7 50.7 So.7 ,7GE 160001 23.6 35.2 37.2 41.0 43.1 44.4 45.9 47.8 48.2 49.6 50.4 50.7 50.7 50.7 50.7 50.7ZE 4001 23.6 35.7 37.7 41.7 43.7 45.3 46.7 48.5 49.0 50.4 51.2 51.5 51.5 51.5 51.5 51.5GE 120001 24.6 37.6 39.6 43.7 45.9 47.3 48.8 50.9 51.3 52,7 53.5 53.8 53.8 53.6 63.8 53.A

I.E 100001 27.8 43.3 45.7 50.5 52.9 54. 4 56.0 58.0 58.6 60.1 60.9 61.2 61.2 61.2 61.2 61.2GE 90001 29.1 45.6 48.4 53.5 55.8 57.3 58.9 60.9 61.5 63.1 63.8 64.1 64.1 64.1 64.1 64 1GE 80001 30.8 49.0 52.4 57.5 59.V 61. 4 62.9 65.1 65.7 67.2 64.0 68.3 68.3 68.3 68.3 66.3i.E 7U001 30.9 49.1 52.7 58.0 60.3 61.8 63.4 65.5 66.2 67.7 68.5 68.8 68.8 68.8 68.8 66.8IE 60001 31.2 49.8 53.3 58.6 60.9 62.4 64.0 66.2 66.9 68.5 6).2 69.6 69.6 69.6 69.6 69.6

bE 50001 31.8 51.6 55-2 60.4 62.8 64.3 65.8 68.0 68.8 70.3 71.1 71.4 71.4 71.4 71.4 71.46E 45001 33.1 53.5 57.0 62.4 64.8 66.5 68.0 70.2 70.9 72.5 73.3 73.6 73.6 73.6 73.6 73.6GE 40001 34.3 56.3 59.8 65.4 68.2 69.9 71.4 73.6 74.3 75.9 76.7 77.0 77.0 77.0 77.0 77.0GE 35001 35.2 58.7 62.4 68.0 70.8 7Z. S 74.0 76.5 77.3 78.8 79.6 79.9 79.9 79.9 79.9 79.9GE 30001 36.5 61.5 65.2 70.9 74.2 76.0 77.6 80.2 81.0 42.5 83.3 83.6 83.6 83.6 83.6 83.6

GE 25CO 37.6 63.5 67.2 73.1 76.5 78.4 79.9 82.5 83.3 8.,9 85.6 45.9 85.9 85.9 85.9 85.9GE 2ro01 38.8 66.3 70.2 76.5 80.3 82.2 83.8 86.4 87.2 88.7 89.5 49.8 89.8 49.8 89.8 V9.8I.E 18001 38.9 66.8 73.6 77.3 BO.R 83.0 84.5 87.6 88.4 90.0 90.7 91.0 91.0 91.0 91.0 91.0GE 15001 39.4 68.2 72.0 78.7 82.4 84.7 86.7 89.8 90.9 92.4 93.2 93.5 93.5 93.5 93.5 93.5I .E 12001 39.4 68.6 72.5 79.1 82.4 85.2 87.3 90.6 91.7 93.2 94.0 94.4 94.4 q4.4 94.4 94.4

IE 10001 39.4 68.6 72.5 79.1 82. 85.2 87.6 91.2 92.3 94.0 94.7 95.2 9S.2 95.4 9S.4 95.4GE 9001 39.4 68.6 72.5 79.1 83.0 85.5 87.9 91.8 929 4.7 95.5 96.0 96.0 Q6.1 96.1 96.1IE 8001 39.4 68.6 72.6 79.4 83.7 85.8 88.3 92.3 93.4 95.5 96.3 96.8 96.8 96.9 96.9 96.9G E 701 39.4 68.6 72.6 79.4 83.6 86.2 88.7 92.7 94.0 96.4 97.2 97.7 97.7 98.0 98.0 98.0BE 6001 39.4 68.6 72.6 79.8 83.9 86.6 89.0 93.2 94.4 97.1 97.8 98.8 98.8 99.1 99.1 99.1

GE 5ool 39.4 68.6 72.6 79.8 83.9 86.6 89.0 93.4 91.6 97.2 98.0 98.9 98.9 99.2 99.2 99.2GE 400 39.4 68.6 72.6 79.8 84.1 46.7 89.2 93.8 95.1 97.7 98,

6 99.7 99.7 100.0 300.0 100.0

GE 3001 39.4 68.6 72.6 79.8 84.1 86.7 89.2 93.8 95.1 97.7 94.6 99.7 99.7 100.0 300.0 100.0GE 2001 39.4 68.6 72.6 79.8 84.3 86.7 89.2 93.8 95.1 97.7 98.6 99.7 99.7 I00.0 100.0 300.42GE 3001 39.4 68.6 72.6 79.8 84. 1 46.7 89.2 93.8 95.1 97.7 98.6 99.7 99.7 10.0 100.0 100.0

GE 0I 39.4 68.6 72.6 79.8 84.1 86.7 89.2 93.8 95.1

97.7 98.6 99.7 99.7 100.0 100.0 100.0

TOTAL NUMBER Of ORSERVATIONS: 647

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUsAFETAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE NL PERIOD OF RECORD: 71-86MONTH: SEP HOURSILSTI: 1500-17C0

CEILINGVIILTYNSTTTMIE

IN GE GE GE GE GE GE GE GE GE GE SE GE GE GE GE GFFEET 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 1/4 5/8 1/2 /16 1/4 0

NO CEIL 1 18.0 26.3 29.4 31.4 33.0 33.3 34.8 35.8 37.4 38.7 40.2 40.5 40.5 40.5 40.5 40.5

GE 200001 25.3 37.1 41.0 43.1 44.8 45.3 46.7 47.7 49.3 50.7 52.3 52.6 52.6 S2.6 52.6 52.6GE 180001 25.3 37.1 41.3 43.1 44.9 45.3 46.7 47.7 49.3 50.7 5?.3 52.6 52.6 52.6 52.6 52.6

GE 16300 25.3 37.1 41.0 43.1 44.8 45.3 46.7 47.7 49.3 50.7 52.3 52.6 52.6 52.6 52.6 52.6GE 140001 25.5 37.4 41.3 43.5 45- 45.6 47.1 48.0 49.7 51.0 52.6 52.9 52.9 52.9 52.9 52.9

GE 120001 26.5 39.1 43.0 45.3 46.9 47.4 49.0 50.0 51.6 52.9 54.6 54.9 54.9 54.9 54.9 54.4

GE 100001 29.2 45.3 49.7 53.1 54.9 55.7 57.5 58.8 60.5 61.8 63.4 63.7 63.7 63.7 63.7 63.7GE 90001 30.9 47.4 51.8 55.2 57.0 57.8 59.6 60.9 62.6 64.1 65.7 66.0 66.0 66.0 66.0 66.0UE 8000! 32.2 49.7 54.4 58.2 60.1 60.9 62.7 64.2 65.8 67.3 69.0 69.3 69.3 69.3 69.3 69.3

GE 7000! 32.5 50.0 54.7 58.5 60.5 61.3 63.1 64.5 66.2 67.6 69.3 69.6 69.6 69.6 69.6 69.6GE 60001 32.8 50.5 55.2 59.0 60.9 61.8 63.6 65.2 66.8 68.3 b.9 70.3 70.3 70.3 7r.3 70.3

GE 5000 34.5 52.8 54.2 61.9 63.9 64.7 66.5 68.5 70:1 71.6 73.2 73.5 73.5 73.5 73.5 73.5

GE 4500 35.6 54.6 63.1 63,9 66.D 66.8 69.0 71.1 72.7 74.3 76.0 76.3 76.3 76.3 76.3 76 3GE 40001 37.7 58.7 64.5 68.8 71.1 71.9 74.0 76.1 77.8 79.6 81.2 81.5 81.5 81.4 R3.4 91.5GE 3400! 38.9 61.8 67.6 72.1 74.3 75,2 77.3 79.4 81.0 82.8 84.5 84.8 84.8 84.8 84.8 P4.8

GE 30001 4C.O 63.7 69.6 74.2 76.6 77.5 79.6 82.0 83.7 85.5 87.1 87.4 87.4 87.4 87.4 87.4

(E 2500! 40.5 6S.2 71.1 76.8 79. 4 8C9 83.0 85.5 87.1 88.9 90.5 90.8 90.8 90.8 90.8 90.9GE 2000 41.3 66.5 7'.0 78. 80.7 82.2 84.3 86.8 88.4 90.2 91.8 92.2 92.2 92.2 92,2 92.2GE 1UO 4.5 67,U 73.4 78.8 81.4 62,8 85.0 87.4 89.1 90.8 97.5 92.8 92.8 92.8 97.8 92.8GE 15001 81.A 67.5 74.2 80.1 82.7 84.2 86.3 88.7 90.4 92.2 94.0 94.3 94.3 94.3 94.3 94.3

GE 17001 42.0 67.8 74.5 80.4 83.0 84.5 86.6 89.4 91.2 93.1 94.9 95.3 95.3 95.3 99.3 q5.3

GE 100! 42.0 67.8 74.5 80.4 83.2 84.6 86.9 89.7 91.7 93.6 95.4 95.8 95.8 95.8 95.8 95.8GE 9001 42.2 68.0 75.2 81.0 83.8 85.3 87.6 90.5 92.5 94.6 96.4 96.7 96.7 96.7 96.7 96.7bE Pool 42.2 68.0 T5.2 81.0 84.2 85.6 88.1 91.5 93.8 96.1 98.2 98.5 98.5 98.5 98.5 98.5

GE 7001 42.2 68.0 75.3 81.4 84.5 85.9 88.4 91.8 94.1 96.4 99.7 99.0 99.0 Q9.0 99.0 99.U

GE 600! 42.2 68.0 75.3 81.4 84.8 96.3 88.7 92.2 94.4 96.7 99.0 99.3 99.3 99.3 99.3 99.3

GE 500! 42.2 68.3 75.7 83.7 85.3 86.8 89.2 92.6 94.9 97.2 99.5 99.8 99.8 99.8 99.8 99.8GE 400! 42.2 68.3 75.7 81.7 85.! 86.8 89.2 92.6 98.9 97.2 90.5 99.8 99.8 99.8 99.8 99.8

GE 300! 42.2 68.3 75.7 81.7 85.3 86.9 89.4 92.8 95.1 97.4 99.7 100.0 100.0 300.0 100.0 0o.oGE 200! 42.2 68.3 75.7 81.7 85.3 86.9 89.8 92.8 95.1 97.4 99.7 100.0 O00.O 100.0 O0.O 300.0GE 1 001 42.2 68.3 75.7 81.7 85.3 86.9 89.4 92.8 95.I 97.4 90.7 10.0 100.0 3o.0 100.0 100.0

GE 0! 42.2 68.3 75.7 81.7 85. 3 86.9 89.4 92.8 95.1 97.4 99.7 100.0 300.0 300.0 300.0 IOU.O


9

2 GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USAFETAC FROM HOURLY OBSERVATIONS4 AIR wEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 77-86

MONTH: SEP HOURS(LST): 1800-2000................................................................................................. ...........................CEILING VISIBILITY IN STATUTE MILES

IN I GE GE GE GE GE GE GE GE GE GE rE GL GE GE GE GEFEET I II 6 5 N 3 2 If2 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 I/4 0

NO CETL I 2N.0 31.4 33.0 36.2 38.7 39.6 0.5 N1.9 2.6 43.8 44.9 45.5 45.B 45.8 45.8 45.8

GE 200001 3n.4 40.U 42.5 45.8

48.4 49.3 50.N 51.8 52.5 53.9 5.1 55.7 56.0 S6.0 56.0 56.0GE 180001 30.4 4O.0 42.5 45.8 48.4 49.3 50.4 51.8 52.5 53.9 51.1 55.7 56.0 56.0 56.0 5.0GE 160001 30.4 40.0 42.5 5.8 48.4 49.3 50.4 51.8 52.5 53.9 55.1 55.7 S6.0 56.0 56.0 56.0GE 14000 1 30.6 N0.2 4.6 6.0 48.6 49.5 50.5 51.9 52.7 5N .0 55.3 5.9 56.2 56.2 56.2 5E.2GE I2CO0l 30.7 41.N 43.8 47.5 50.1 51.0 52.1 53.4 54.2 55.6 56.8 57.4 57.7 57.7 57.7 57.7

GE 100001 34.7 49.2 51.6 55.6 58.1 59.1 60.1 61.5 62.N 63.8 65.0 65.6 65.9 65.9 65.9 65.9GE 90001 35.8 50.8 53.3 57.2 59.4 60.7 61.8 63.2 bN.1 65.4 66.7 67.3 b.6 67.b 67.6 A7.b4E 80001 37.0 53.4 56.0 60.3 63.2 64.N 65.6 67.3 68.2 69.6 70.8 71.4 71.7 71.7 71.7 71.76E 70001 37.3 53.7 56.3 60.7 63.6 64.8 66.2 67.9 b8.8 70.2 71.4 72.0 72.3 72.3 72.3 72.3GE 60001 374 54 N.

2 56,8 61.2 64.1 65.3 66.7 68.3 69.3 70.6 71.8 72.5 72.8 72.8 72.8 72.8

GE 50001 38.1 56.2 59.2 63.8 66.7 68. 2 69.6 71.2 72.1 73.5 74.7 75.3 75.6 75.6 75.6 75.6GE 45001 38.4 57.2 60.4 6.1 a8.Z 69.A 71.1 7?2.9 73.8 75.2 76.4 77.0 77.3 77.3 77.3 77.3GE 40001 40.3 60.6 63.9 68.8 71.7 73.? 7N.7 76.6 77.5 78.8 80.1 80.7 81.1 S1.1 81.1 81.1GE 35001 42.3 63.9 67.4 72.5 75.5 77.0 78.5 80.4 81.3 82.6 83.9 84.5 44.9 84.9 84.9 84.9GE 30001 N3.7 65.9 69.9 75.0 78.1 79.6 81.3 83.3 84.2 85.5 86.4 87.4 87.8 97.8 87.8 87.8

GE 25001 44.9 67.7 71.7 77.? 80.5 82.0 84.0 86.0 67.1 88.4 89.6 90.3 90.7 90.7 90.7 90.7GE 20001 45.1 68.5 77.6 78.2 81.6 83.1 8s.1 87.2 88.3 89.6 90.9 91.5 91.9 91.9 91.9 91.9GE 18001 45.5 69.6 73.8 79.5 82.3 84.3 86.3 88.6 89.6 91.C 97.2 92.8 93.3 93.3 93.3 93.3GE 15001 46.0 7U.5 75.0 81.0 84.6 86.3 88.3 90.6 91.8 93.2 94.4 95.0 95.4 95.4 95.4 95.4GE 17001 46. n 71.1 75.6 81.6 85.2 87.1 89.0 91.3 92.7 94.1 95.3 95.9 96.3 96.3 96.3 96.3

GE ICOO1 46.1 71.2 75.8 81.7 85.q 87.2 89.2 91.5 92.8 94.2 95.6 96.2 96.7 qb.7 96.7 96.7GE 9001 46.1 71.2 75.4 81.7 85.4 87.2 89.? 91.8 93.5 94.8 96.2 96.8 97.3 97.3 97.3 97.3GE 9001 46.1 71.2 75.8 82.2 85.8 87.7 89.6 92.2 93.9 95.9 97.4 98.0 98.5 98.5 9.5 98.5GE 7001 46.1 71.5 75.1 82.6 86.3 88.1 90.1 92.7 94.4 96.3 97.9 98.5 98.9 98.9 98.9 98.9GE 6001 46.1 71.5 76.1 82.6 86.3 88.1 90.1 93.0 94.7 96.7 9R.2 98.8 99.2 99.2 99.2 99.2

GE 5001 46.1 71.5 76.1 82.b 86.3 88.1 90.1 93.0 94.7 q6.7 99.2 98.8 99.2 99.2 99.2 99.2GE 4001 46.1 71.5 76.1 82.6 86. 88.1 90.1 93.2 95.0 97.0 99.5 99.1 99.5 99.5 99.5 99.5GE 3001 46.1 71.5 76.1 82.6 86.3 98.1 90.1 93.2 95.0 97.c 94.5 99.1 99.5 99.5 99.5 99.5GE 2001 46.1 71.5 76.1 82.6 86.3 88.1 90.1 93.2 95.0 97.0 98.5 99.1 99.5 99.5 99.5 99.5GE 1001 46.1 71.5 76.1 82.6 86.3 88.1 90.1 93.2 95.0 97.0 98.5 99.1 99.7 99.7 99.7 99.8

GE 01 46.1 71.5 76.1 82.6 86.3 88.1 90.1 93.2 95.0 97.0 98.5 99.1 99.7 99.7 99.7 100.0


* GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOUqLY OBSERVAT1ONSAIR WEATHER SERVICE/MAC

STATION NUMSER: 063250 STATION NAME: ZIERIKZEt NL PERIO0 OF RECORO: 77-86MONTH: SEP HOURSILSTI: 2100-2300

..............................................................................................................................CEILING VISIBILITY IN STATUTE MILES

IN GE GE GE GE GE G GE GE GE GE GE GE GE GE GE GE") FEET 10 6 5 4 3 2 1f2 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 i/4 0

I) Nu CEIL 23.o 35.1 39.' 43.3 '5.5 q7.9 48.1 S0.5 51.4 53.2 54.0 54.1 54.1 S4.1 54.3 54.3

GE 20000 25.2 '.0.7 '.4 '8.3 50.6 53.6 53.8 56.2 57.3 59.1 60.2 60.6 60.8 60.8 6a.0 61.0.GE 1A000 25.2 '.7 41:4.4 8.3 50. 6 53.6 53.8 56.2 57.3 59.1 60.2 60.6 60.8 60.8 6.0 61.0

GE 160001 25.2 40.7 q1..4 48.3 50-6 53.6 53.8 56.2 57.3 59.1 61.2 60.6 60.8 60.8 61.0 61..GE 1MOD| 25.4 40.9 454.6 48. 50.8 53,8 54.0 56'. 57.5 59.3 60.4 60.8 61.0 61.0 61.1 61.1GE 120001 25.6 41.6 45.3 9.2 51.6 54.5 54.1 57.1 58.2 60.0 61.1 61.5 61.7 61.7 61.9 61.9

GE 100001 26.5 44.4 48.6 52.7 55.2 58.2 58.4 61.0 62.1 63.9 65.0 65.4 65.6 65.6 65.7 65.7GE 9000l 28.2 47.1 51. 55.4 58.U 61.0 61.1 63.7 64.8 66.7 67.8 68.1 68.3 68.3 68.5 68.5GE 80001 28.7 47.9 52:1 56.' 58.9 61:9 62.1 64.6 65.7 67.6 68A7 69.1 69.2 69.2 69.4 69.

GE 70001 28,7 '7.9 52.1 56.4 59.1 62.1 62.2 64.8 65.9 67.8 64.9 69.2 69. 69.4 69.6 69.6GE 6001 28.7 48.3 52.5 56.7 59.5 62. 4 62.6 65.2 66.3 68.1 69.2 69.6 69.8 69.8 70.0 70.0

GE 5c001 29.1 49.'. 54.0 58.6 61.3 64.3 64.5 67:0 68.3 70.2 71.3 71.6 71.8 71.8 72.0 72.0GE .500| 29.3 50.5 55.1 59.7 62.6 65.6 65.7 68.5 69.8 71.6 77.7 71.1 73.3 73.3 73.5 73.5

GE 0001 31.3 55.1 60.6 65.7 68.7 71.b 71.8 74.8 76.1 77.9 79.0 79.4 79.b 79.6 79.7 79.7.E 35001 31.9 56.7 62.2 68.1 71.5 74.6 74.98 77.7 79.0 80.8 82.0 82.3 82.5 82.5 82.7 82.7GE 30001 33.7 59.9 65.4 71.5 75.1 78.3 78.5 82.0 83.2 85.1 86.2 86.6 86.7 86.7 86.9 86.9

GE 25001 33.9 60.4 66.3 72.' 76.2 79.4 79.6 83.1 84.3 86.2 87.3 87.7 81.8 87.8 88.0 88.0GE 20001 34.1 60.8 66.7 72.9 76.8 79.9 80.1 83.6 84.9 86.7 87.8 88.2 88.4 88.' 84.6 88.6

GE 18001 34.3 61.9 68.0 74.2 78.1 81.2 81.6 85.1 86.4 88.2 89.3 89.7 89.9 89.9 90.1 90.1GE ISO0l 34.4 62.2 69.1 75.7 79.9 83.1 83.6 87.1 88.4 90i2 91.3 91.7 91.9 91.9 92.1 92.1GE 12001 34.6 62.6 69.6 76.6 80.4 84.0 84.5 88.0 89.3 91.2 92.3 92.6 9Z.8 92.8 93.0 93.0

GE 10001 34.6 62.6 70.2 77.3 81.6 84,7 85.5 89.0 90.2 92.1 93.2 93.6 93.7 93.7 93.9 93.9GE 9001 34.6 63.0 70.7 78.5 83.1 86.4 87.3 90.8 92.1 93.9 95.2 95.6 95.8 95.8 95.9 95.9GE 8001 39.6 63.0 73.7 78.5 83.2 86.6 87.5 91.0 92.3 94.7 95.9 96.3 96.5 96.5 96.7 96.7GE 7001 34.6 63.0 73.7 78.8 83.' 87.1 88.2 91.7 93.0 95.6 76.9 97.2 97.4 97.4 97.6 97.6GE 60n) 34.6 63.0 70.7 78.8 831 87.3 88.6 92.6 93.9 96.5 97.8 98.2 98.3 98.3 98.5 98.5

GE 5001 34.6 63.0 70.7 78.8 83.8 87.5 88.8 92.8 94.3 96.9 98.2 98.5 98.7 98.7 98.9 98.9GE 4001 34.6 63.0 73.3 78.8 83.8 87.5 88.8 92.8 91.3 97.6 9R.9 99.3 99.4 99.4 99.6 99.6GE 3001 34.6 63.0 70.7 78.8 83.8 87.5 88.8 92.8 94.3 97.6 98.9 99.3 99.4 99.4 99.6 99.6GE 2001 34.6 63.0 73.7 78. 83.8 87.5 88.8 92.8 94.3 97.6 98.9 99.3 99.' 99.6 99.8 99.8GE 1001 34.6 63.1 737 78.8 83.8 A7.5 88.8 92.8 94.3 97.6 98.9 99.3 99.4 99.6 99.8 99.8

GE 01 34.6 63.0 70.7 78.8 83.8 87.5 88.8 92.8 94.3 97.6 98.9 99.3 99.4 99.6 99.8 100.0

.............................................................................................................................................

TOTAL NUMBER OF OBSERVATIONS: 5'3

S}i l ~ l IIIIIIlIl

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURCENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATION NAME: ZIERIKZE NL PERIOD OF RECOPO: 77-86MONTH: SEP HOURSILSTI: ALL


IN I GE GE 5E GE GE G GE GE GE GE GE GE GE GE GE GEFEEt I 10 6 5 9 2 12 2 1 1/2 I 1/9 1 3/9 i/A 112 5/16 1/9 u

* NO CEIL 1 17.8 26.9 29.9 32.7 3 9 .R 36.0 36.8 38.8 39.8 91. 1 N1.9 92.0 42.8 92.9 3.1 93.7

GE 200001 21.5 32.5 35.9 39.7 92.1 93.5 99.9 96.6 47.8 99.2 50.1 50.7 51.1 51.3 51.9 52.1GE 180001 21.5 32.5 35.9 39.8 92.2 93.6 99.5 96.7 97.8 99.3 50.1 50.7 51.1 51.3 51.9 52.2GE 160001 21.5 32.5 35.9 39.8 92.2 93.6 99.5 96.7 97.8 99.3 50.1 50.7 51.1 51.3 51.9 52.2GE 19000I 21.6 32.7 36.1 90.0 92. 93.8 99.7 96.9 98.0 99.5 53.9 50.9 51.3 51.5 61.6 52.9GE 12 001 21.9 33.8 37.2 91.3 93.7 95.1 96.1 98.3 S9.5 52.0 S.9 52.5 52.9 53.1 53.2 53.9

UE 100001 29.2 38.6 92.q 96.9 99.6 51.1 52.1 59.6 5.9 57.9 59.3 58.9 59.3 59.5 59.6 60.9GE 90001 25.3 90.5 99.9 99.0 51.7 53.2 59.2 56.7 58.0 59.5 60.5 61.1 61.5 61.7 61.8 62.5GE 80001 26.2 42.3 96.9 S1.3 59.1 55.7 56.8 59.5 60.8 62.9 63.9 69.0 69.9 69.6 61.7 65.

5GE 70001 26.3 92.5 96.7 51.6 59.5 56.1 57.2 60.0 6. 62.9 63.8 69.9 69.9 65.1 65.2 65.9GE bOO0 26.9 92.8 97.0 52.0 55.0 56.6 57.8 60.5 61.8 63.9 69.9 6. 65.5 65.7 65.8 66.6

GE 50001 27.3 95.0 99.5 59.7 57.8 59.5 60.6 63.9 b.7 66.9 67.9 68.0 68.9 66.7 68.8 69.5GE 95001 28.1 96.7 S1.9 56.8 59.9 61.7 62.9 65.8 67.2 68.8 69.8 70.9 70.9 71.1 71.2 71.9GE 40001 30.0 50.5 55.9 61.4 69.9 66.8 68.1 71.1 72.9 79.1 75.1 75.7 76.2 76.9 76.5 77.3GE 35001 31.0 52.7 57.8 69.0 67.6 69.s 70.8 73.9 75.3 77.0 77.9 78.6 79.0 79.3 79.9 80.1GE 30001 32.2 55.0 60.2 66.7 70.6 72.5 73.9 77.2 78.6 80.3 81.2 81.9 82.4 82.6 87.7 83.9

GE 25001 33.1 56.6 62.0 68.7 72.8 79.8 76.2 79.6 81.0 82.7 83.7 89.3 89.8 95.0 85.1 85.8GE 20001 33.8 57.9 63.9 70.3 79.5 76.6 79.1 81.6 63.0 89.7 85.7 96.3 86.8 97.0 87.1 87.8GE 18001 39.3 59.2 69.9 71.9 76.2 78.3 79.8 83.4 89.8 86.5 87.5 88.1 88.6 88.8 88.9 89.7GE 15001 39.7 60.3 66.2 73.9 77.9 80.1 81.7 85.3 86.8 88.5 89.5 90.2 90.6 90.9 91.u 91.7GE 12001 35.0 61.1 67.1 74.6 79.2 81.9 83.0 86.7 88.3 90.1 91.1 91.8 92.2 92.4 92.5 93.3

GE 10001 35.0 61.1 67.2 79.9 79.6 81.9 83.5 87.9 89.0 90.8 91.8 92.5 93.0 93.2 93.3 99.0GE 9001 35.0 61.3 67.6 75.3 80.1 82.5 89.2 88.1 89.9 91.7 92.8 93.5 93.9 99.1 99.3 95.0GE 8001 35.0 61.3 67.b 75.6 80.5 93.0 88.7 88.9 90.7 92.9 94.0 94.7 95.2 95. 95.5 96.3GE 700 35.0 61.9 67.8 75.9 81.0 83.5 85.3 89.6 91.7 93.9 95.1 95.8 9t.3 96.6 96.7 97.9DE 6001 35.0 61.q 67.8 76.1 81.2 83.8 85.6 90.2 92.2 79.5 95.7 96.5 97.0 97.3 97.9 98.1

GE 500u 35.0 61.9 67.9 7b.1 81.3 83.9 85.7 90.3 92.9 94.7 95.9 96.8 97.3 97.5 97.6 98.9GE 9001 35.n 61.9 67.9 76.1 81.9 83.9 85.8 90.6 92.6 95.0 96.9 97.3 97.8 98.1 98.2 99.0GE 3001 35.0 61.9 67.9 76.1 81.9 89.0 85.8 90.5 92.6 95.0 96.5 97.9 97.9 98.2 98.9 99.2GE 2001 35.0 619 67.9 76.1 81.9 89.0 85.8 90.5 92.6 95.0 96.5 97.9 97.9 98.3 98.5 99.5GE 1001 35.0 61.9 67.9 76.1 81.4 99.0 85.8 90.5 92.6 95.0 96.5 97.9 97.9 98.9 98.6 99.8

GE Of 35.2 61.5 67.9 76.2 81.4 89.0 85.8 90.5 92.6 1 95.1 96.5 97.9 98.0 98.9 98.6 100.0.. . . . . . . . . . . . .. . . . . . . . . . .... ° ~ e. . . . . . .. . . . . . .. . . . . .. . . ..........°° e ... . ...


Jo Lnn -- iemminmnumm muu

GLOBAL CLIMATOLOGY BRANCH PEkCENTAGE FROQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS

AIR WEATHER SERVICIMAC

%TATION NUMBER: 063250 STATION NAME: 7]1RIXZ[ NEL PERIOD OF RECORD: 80-86MONTH: OCT HOURSILSTI: 0000-0200

LILNG VISIBILIIY IN 5TAIUIF MIl5

IN GE GE GE GE GE GO GE GE GE GE GE GE GE 5E GE GEFEET 10 6 5 8 1 2 112 2 1 112 1 1/ 1 '1/ 5/8 V2 5/16 111 0

NO CE/L 1 15.2 29.5 31.7 35.0 37.9 39.8 80.2 83.7 988.0 5.0 85.1 85.1 85.1 45.7 85.7 87.0

bE 200001 16.0 31.2 31.1 37.8 40.b 2.6 82.9 86.8 86.8 87.7 87.9 87.9 87.9 88.8 88.8 89.7GE 180001 16.0 51.2 38.1 37.8 80.6 42.b 82.9 86.8 8 6.8 87.7 87.9 87.9 87.9 88.8 88.8 89.7GE 16000 16.0 31.2 38.1 37.8 80.6 82.b 82.9 86.8 86.8 87.7 8?.9 87.9 87.9 88.8 8.8 89.7GE 1800 16.0 31.2 38.1 37.8 80.b 82.6 82.9 86.8 46.8 87.7 87.9 87.9 87.9 88.8 88.8 89.1GE 12000l 16.1 31.9 38.9 38.5 81.3 83.3 83.7 87.2 87. 5 88.8 88.6 88.6 88.6 89.2 89.2 50.5

GE 100001 17.2 38.9 1s.s 4Z.4 qS.l 87.3 q?.? 51.2 51.6 5Z.6 57.7 52.7 52.7 S3.2 53.2 58.5GE gro0 17.8 36.1 39.6 88.0 86.8 89.0 89.8 52.8 53.2 58.1 58.3 58.3 58.3 58.9 58.9 56.1GE 80001 18.2 37.8 81.7 86.1 89.0 51.2 51.6 55.0 56.8 S6.3 56.5 56.5 56.5 57.1 57.1 58.3GE 7t,0o 18.2 38.0 81.8 86.8 8#9. 51.6 51.9 55.1 55.8 S6.7 56.9 56.9 56.9 57.8 57.8 58.7GE 60001 18.2 38.0 81.8 86.8 89.8 51.6 51.9 55.8 55.8 56.7 56.9 56.9 56.9 57.8 67.8 5b.

GE SODO 18.9 39.3 8j.5 88.8 51.6 53.8 58.3 57.6 58.2 59.3 59.6 59.6 59.6 60.2 69.2 61.5GE 85001 20.2 81.5 85.7 50.6 53.8 56.0 56.3 59.8 60.8 61.5 61.8 61.8 61.8 62.8 b2.4 63.7

GE 80001 22.6 85.5 50.1 55.2 58.5 60.9 61.3 68.8 65.3 66.8 06.9 66.8 66.8 67.3 67.3 68.6UE 35001 28.2 88.8 58.S 59.6 62.9 65.3 65.7 69.? 69.7 70.8 13.2 71.2 71.Z 71.7 71.7 73.0GE 30003 Z5.9 52.1 58.0 63.5 66.8 69.8 69.7 73.2 73.8 78.9 75.2 75.2 75.2 75.8 75.8 77.1

bI 25001 26.6 S8.3 63.b 66.8 70.1 72.8 73.2 76.7 77.2 78.3 19.7 ?8.7 78.7 79.3 79.3 60.6GE 2C001 26.8 55.8 62.0 68.8 72-7 75.8 75.8 79. 8 80.0 81.1 81.5 81.5 81.5 82.0 82.0 83.3GE 18001 26.8 57.1 63.3 70.1 78.5 77.6 78.2 81.8 82.6 83.7 88.0 89.2 88.2 88.8 8.8 86.1GE ISOO 27.0 58.3 65.0 71.7 76.3 79.8 80.0 88.0 88.8 85.9 86.2 86.8 86.8 87.0 87.0 86.3GE 12001 27?. 59.3 66.1 73.6 78.7 82.0 82.6 86.6 87.3 88s. 89.0 89.2 89.2 89.7 89.7 91.0

GE 10001 27.7 59.8 65.2 78.1 79.8 83.1 88.0 88.1 89.0 90.3 90.6 9U.8 90.8 91.8 91.8 92.7GE 9001 27.? S9.8 66.8 75.2 80.9 88.8 85.3 89.1 90.6 91.9 92.3 92.5 92.5 93.0 93.0 98.3GE 8001 27.7 60.0 67.0 75.8 81.7 85.1 86.1 90.6 91.6 92.8 83.2 93.8 93.8 93.9 93.9 95.2GE 7001 2?.7 60.2 67.2 75.6 82.0 85.9 87.2 91.1 92.7 93.9 98.3 98.5 98.S 95.0 96.0 96.3GE 6001 27.7 60.6 67.5 76.0 82.e 86.6 88.1 93.0 93.9 95.8 95.8 96.0 96.0 96.5 96.S 97.8

GE 5001 27.7 60.6 67.5 76.0 82.9 87.2 88.6 93.9 95.8 96.9 97.2 97.8 9?. 98.0 98.0 99.3GE 8001 27.7 60.6 67.5 ?6.. 82.9 87.2 88.6 98.1 95.8 97.2 97.6 97.8 97.8 98.3 98.3 99.6GE 3001 27.7 60.6 67.5 76.0 82.9 87.2 88.6 98.5 96.1 97.6 98.0 98.2 98.2 98.7 98.7 100.0

.E 2001 27.7 60.6 67.5 76.0 82.9 87.2 88.6 98.5 96.1 97.6 98.3 98.2 98.2 98.1 98.7 100.0

GE 1001 27.7 60.6 67.5 76.0 82.9 87.2 88.6 98.5 96.1 97.6 98.0 98.2 98.2 98.7 98.7 100.0

GE 01 27.7 60.6 61.5 76.0 82.9 87.2 88.6 98.5 96.1 91.6 98.0 98.2 98.Z 98.7 98.? 300.0

10TAL NUMBER OF OBSERVATIONS: ss

do-

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY Of OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONSAIR WEATH4ER SERVICE/MAC

STATION NUIMBER: 063250 STAT ION NAME: ZIERIKZE- ML PEQIOD OF RECORD: S0-SBMONTH: OCT HOURSILSTI: 0300-OSOO

CEILING VISIBILITY IN STATUTE MILESIN IGE GE GE GPE GE G- GE BE BE GE GE GE GE GE GE GE

FEET to1 6 5 4l 2 312 2 1 112 1 Ill$ 1 3/01 S/8 112 "/16 1/4 a

NO CElL 1 18.1 30.9 33.4 3b.65 39.9 40.5 10.7 ? 3.2 111.5 9.6 145.1 46.2 4S.2 45.2 45.6 97.4

GEj 200001 16.7 33.2 36.1 19.6 43.0r 43.6 43.9 46.6b 48.1 116.6 49.0 49.0 49.0 99.0 49.4 51.2GE 180001 18.7 33.2 36.1 39.6 43.0 43.6 43.9 96.6 #18.2 1 48.6 49* 9 .0 4.0 99.0 99.0 49.40 51.2GE 160001 19.? 33.2 36 .1 39.6 43.0 913. 6 43.9 916.6 148 .1 98.6 49.0 99.0 49.0 919.u 49.9 51.26E 140001 18.7 33.2 36.1 39.6 93.3 43.b 43.9 46.6 48.1 149.6 49.0 49.0 919.0 419.0 919.4 51.2GE 120001 19.7 33.2 36.1 39.6 43.0 43.6 93.9 406.6 468.1 99.6 49.0 49.0 49.() 99.0 99.4 S1.2

bE 100001 19.2 36.1 39.4 93.4 47.0 97.5 47.9 50.6 S2.1 52.6 53.0 53.0 51.0 S3.11 53.4 55.2GE 90001 19.2 36.8 42.2 94.3 47.9 98.5 99.8 51.5 63.0 53.5 63.9 53.9 S3.9 53.9 54.3 56.3GE 80001 19.6 38.5 91.9 46.3 50.2 50.6 52.0 Si.7 65.2 55.7 56.2 56.1 56.1 S6.1 66.91 5b.36E 70001 19.6 38.7 42.3 46b.8 50.6 53.2 51.5 59.3 5s.7 56.3 56.6 56.6 56.6 56.6 57.0 58.86E 60001 19.6 39.2 143.0 47.S561.9 51.9 52.3 55.0 66'.6 57.Z 51.5 57.5 67.5 57.6 57.9 59.7

JE SOUD1 20.1 39.9 9411 48. 52.6 S3. 2 53.S5 :: 6. 67.:9 SS.6 59.0 9 59.2 90 59.0 69. 3 6 3.:2GE 9110 I 20.5 91.9 46. 50. 55.0 555 55.S9 58. 0. 62.2 62.5 63. 61 .5 b 6s 6 62.9 63.7uE 140001 22.7 96.1 51.'. 57.2 61.5 62.9 62.8 65.5 67.3 66.1 69.41 66.9 66.9 68.% 68.6 70.6GE 35U01 24.7 48.4 64.1 60.1 64.4 65.3 65.9 68.6 70.4 72.1 71.5 71.5 1.3 11.6 1.9 73.7GE 30001 Zs.b 51.0 66.94 63.0 67.9 69.0 b9.5 72.91 74 .6 75.5 75.9 75.9 75.9 75.9 76.2 IS.()

L.E 25001 26.s 52.3 66.6 66.3 70.9 71.5 12.1 75.0 77.1 76.0 76.9& 78.4 78.4 78.4 19.8 60.6GE 20001 26.9 54. 61.0 68.2 73.7 79.89 75.3 78.2 60.90 61.3 81.7 81.7 81.7 81.7 82.0 83.8GE 18001 26.9 Sft.S 67.3 69.S 75 76. 77.0 79.9 82.0 62.9 81.3 63.3 83.3 93.3 83.7 IS.$or 1SQOl 27.0 S5.4 63.0 10.6 77.0 78.4 78.9 81.9 &,9.0 99.9 85.3 85.3 85.3 65.3 85.7 87.56.E 12001 27.2 56.9 63.9 71.9 78.91 79.9 80.9 83.3 85.5 86.91 86.8 86.8 66.6 86.8 87.3 88.9

GE 10001 27.2 56.4 64.41 72.6 60.0 83.5 82.4 85.3 87.5 6.4 89.7 88.9 88.9 68.9 89.3 91.1GE 9001 27.2 56.9 64.91 72.8 80.4 92.2 83.1 86.2 88.6 q9.5 99.9 90.0 90.0 90.0 90.4 92.2GE Pool 27.? 56.4 64.6 73.1 82.3 82.9 83.6 86.9 89.3 90.2 90.6 90.7 90.7 90.1 91.2 92.9GE 7001 27.2 56.4 69#.6 73.5 62.? q4.0 89.9 88.0 90.49 1.S 93.8 92.0 92.2 92.2 92.6 9%.946E 6001 27.2 S6.6 66.0 73.9 82.6 89.6 85.5 68.7 91.2 92.2 92.6 92.7 92.9 92.9 93.1 95.1

GF 5001 27.2 56.e 66.-3 75-1 84.0 86.0 87.1 90.71 93.3 914.6 9.3 95.3 95.5 95.5 95.8 97.6GE 91001 27.2 56.8 65.3 75.2 $%.a 96.O087.1 91.1 93.6 9S.3 96.0 96.2 96.96 96.41 96.7 98.6Gr Tool 27.2 56.8 65.3 75.3 89.C. 66.2 87.3 92.3 93.8 95.5 96.Z 96.9 96.6 96.6 97.1 98.9GE 2001 27.2 56.8 65.3 75.1 84.r 86.2 87.3 91.3 93.8 95.6 96.4 96.7 96.9 96.9 97.5 99.3GE 1001 27.2 56.8 66.3 75.1 84$.0 46.2 87.3 91.3 93.8 95.6 96.9 96.7 96.9 96.9 97.5 99.8

uE 01 27.2 S6.8 66.3 75.1 891.0 86.2 67.3 92.3 93.8 95.6 96.9 Q96.7 96.9 96.9 97.5 100.0

TOTAL NUMMER Of OBSERVATIONS: 561

Je

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FRGUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HfOULY OBSERVATIONsAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STAtION NAME: ZIFRIKZE- NL PEPIOD OF PECORO: 1,19-86MONTH: OCT HOURSILSTI: 0600-000

CEILING VISIBILITY IN STATUTE MILESIN GE E GE GE GE 6 GE GE GE 6E GE GE GE GE GE GE

FEET I In 6 5 9 1 2 Ii2 2 1 112 I 1/4 1 3/9 5/A I/2 1/16 I/V 0

NO CEIL I 12.S 2Z.1 ZN.% 26.9 28.5 30.1 30.8 33.1 33.9 35.1 35.7 IS.1 36.6 01.4 3?.? 38.6

iE 200001 19.0 26.9 29.b 33.6 33.6 35.3 35.9 38.6 39.? 90.9 91.7 1.7 42.5 93.3 91.7 44.bGE 18000 I 14.0 26.4 29.S 30.6 33.8 35.4 36.1 38.7 39.9 91.0 I.9 41.8 92.7 43.S 93.6 99 .8,E 160001 19.0 26.4 28.5 30.6 33.& 35.9 36.1 38.1 39.9 91.0 91.8 . . 92.7 93.5 93.8 4.8GE 140001 19.0 26.9 28.5 30.6 33.A 35.9 36.1 38.1 39.9 91.0 lI . 91.8 12.1 %3.5 93.8 49.6GE 12901 39.0 26.5 Z8 . 31.0 39.1 35.7 36.9 39.0 90.2 91.4 97.2 92.2 93.0 43.8 99.2 96.1

GE 100001 15.5 29.5 32.0 34.$ 38.2 90.6 91.2 44.0 9S. 96.3 47.1 47.1 97.9 98.8 99.3 50.1GE 90GO1 16.1 30.6 33.3 35.9 9O.U 42.3 43.0 96.0 91.1 48.3 99.1 49.1 99.9 50.1 51.2 12.2GE 80001 16.6 32.6 35.4 30.9 42.5 95.0 95.8 98.8 99.9 51.1 57.1 2.9 53.2 54.0 69. 55.5bE 10001 16.8 32.8 36.6 38.1 92.0 45.3 96.1 49.1 50.2 51.4 52.4 52.1 53.S 59.9 59.9 55.8GE 6000 I6.8 132.8 35.6 38.1 42.8 b. 3 96.1 99.1 SO.2 51.4 52.9 Sz,1 63.5 5.4 54.9 55.

GE 5000 11.5 39.9 37.7 41.2 45.6 NB.3 99.1 S2.9 53.6 54.1 55 .1 56.0 66.8 51.1 S9.2 59.1GE 9500 18.5 37.1 93.7 9.0 99.3 52.2 53.0 56.5 51.7 S0,8 59.8 60.1 61.0 61.8 62.3 63.3bE 90001 20.8 41.2 411. 98.9 59.0 51.2 58.0 63.6 62.8 691. 65.1 6S.4 66.2 61.1 67.5 68.5GE 35001 22.6 99.0 47.3 51.7 66.9 60.0 60.8 69.9 65.6 67.1 69.n 68.9 69.2 70.0 70.5 71.5GE 3C001 23.9 96. 49.8 69.2 60.0 63.3 69.3 67.9 69.0 70.5 71.5 71.8 ?2.1 73.6 9.31 75.1

GE 2001 29.1 97.6 51.6 66.2 62.1 65.4 66.9 10.3 11.5 73.0 7.0 714.3 16.3 76.1 76.6 71.6GE 20001 24.7 98.6 53.7 58.5 69.6 67.9 68.9 72.8 79.0 15.6 16. 76.8 11.6 18.6 79.1 80.1GE IoOOl 15.0 99.9 55.4 60.6 66.6 70.0 71.0 75.3 16.9 18.1 19.1 19.9 80.2 81.2 81.7 82.7GE 1001 25.S 53.1 57.1 63.3 69.9 13.5 ?.6 78.9 80.1 83.1 82.7 83.0 83.9 89.8 85.3 86.36E 12001 26.7 52.1 59.1 63.6 70.3 7.0 1S.0 79.6 80.7 2.4 83.4 83.1 89.5 86.6 66.0 81.0

GE 10001 5.7 52.2 68.z 63.9 71. 75.0 15.9 80.1 A1.9 83.6 89.6 84.8 86.? 86.7 87.1 86.16E 900 25.7 52.9 58.3 69.1 13.1 75.1 76.9 13.5 82.7 89.3 95.3 a5,? 86.S 87.5 89.0 89.0GE 800 25.7 52.6 68.5 69.6 12.0 75.8 77.3 82.6 89.0 85.1 8.. 87.1 88.0 89.0 89,5 90.9

E 7001 25.7 52.7 58.8 69.9 12. 76.9 71.9 83.9 89.8 896: 81.5 88. 89.0 90.0 904 91.q

6E 600 zS.7 527 58.8 66.9 13.3 11.3 18.1 89.3 86.8 88.0 89.0 89.6 90.6 91.6 92.3 93.1

GE 500 2S.1 52.1 69.0 65.6 11.1 11.8 79.2 86.2 86.8 89.0 9n.1 90.9 91.9 92.9 93.9 99.9GE 9001 2S.1 SZ.9 59.1 66.1 19.0 18.1 79.6 85.8 87.6 89.6 971.9 91.8 92.9 99.4 95.3 96.0G(E 3001 25.7 62.9 59.1 65.1 19.1 78.3 19.7 86.2 88.1 90.3 91.8 92.8 93.9 95.6 96.2 91.6GE 2Q01 z5.? 6Z.9 59.3 65.7 79.1 76.3 79.7 86.2 88. 90.9 91.9 92.9 90.1 96.7 96.9 97.9

(.E 1001 25.7 52.9 69.1 66.? 19.1 78.3 79.7 86.2 68.1 90.4 91.9 93.1 99.2 96.0 96.1 99.7

GE O 25.7 52.9 61.1 657 19.1 78.3 19.7 86.2 88.1 90.9 91.9 93.1 99.2 96.0 96.? 100.0

TOTAL NUMPER Of OBSERVATIONS: 601

*b

GLI3L LIATLOY R1::CH PIMCENTAGO FR-QULINCY OF OCCURRENCE or CtiLihc vrRSus VISIBILITYUSAFE IT AC FROM HOURLY OBSERVATIONS.AIR IIEATHI: SIR ICO/MC

STATION NUMBER: 063250 STATION NAME: ZIFAIsfLt NI. PEIOU Or RECONO: 1l.19S6bMONWTH: OCT NOURSILST3: 0900-1100

CE ILING VISIBILITY IN STANUIO MILLSIN GE 61 GE ~ GE GE. G- 6. GE GE GE r,3. fi t G O GE G EG

FEET in 30 5 4 1 212 2 1 112 1 1/4 1 '/4 S/8 1/2 c9/36 11% 0

N40 COIL I12.0 37.3 19.3 21.9 2'.7 291.9 25.4 26.5 17.0 20.5 29.0 119.S 29.6 ?9.6 29.6 19.6

I.E 200003 9. 26.9% 29.0 33.: S6f 36.5:1 3:.0 39.? 90.111939 42.9 942.9 93.'1 9. 9:1.1 93.

GE A500 I . 26. : .G 33.5 36.0 36.1? 18.0 39. 01 93. .29 2.9 93.1 93.1 933 93."E 160071 3.0 2'.9. 93 39 3. 36.1 35.0 39. 1 90.1 %3.9 9.9 29 933 3. .3 3.GE 390003 1A.0 26 .9 29.0 3I.9 36.0 36.9 18.2 39.9 90.9 92.1 92.6 91.1 93.3 43. 3 93.3 91.3(,E 120001 15.9 26.9 29.5 39.0 36.5 31.9% 35.1 Il0.% 91.9 42.6 4'.1 91.6 93.5 93.5 91.6 943.5

UE 300003 20.2 30.3 33.9 15.6 43.9 92.9 93.9 99.6 96.6 91.5 99.9 9 9.0 99.2 q9.z %9.Z 99i.2LE 90003 21.2 3.1.3 35.S 91.1 99.3 99S.9 91.0 95.1 99.1 90.6 113.5 SZ.0 921 2.2 52.2 '52.2 9*61 5C103 22.2 15.4 31%.b 99.5 98.n 49.5 93.0 92.1 513.7.1 95.3 93. .6 S6.7 56.1 96.1 96.7GE 10001 22.2 39.9 35. b 948 4. 9.5 5. 99. 930 2.1 93.1 99.2 116.6 917.3 51.2 %7.2 51.2 s1. I61 60001 22.2 3S.1 39.3 4S.3 95.91 SC.0 93.9 S3.2 99.2 S5.? S91 %7.6 S7.? 91.1 9T1 S7.?

UE Sf3001 22.9 31.9 93.91 95.0 93.7 S2.9 99.9 96.2 51.2 59.5 6r1 60.b 60n.5 60.5 b(p.6 60.61.E 9S001 23.6 39.6 913.9 SO.3 93.1 99.91 S6.9 941.9 99.9 61.9 62.5 63.3 63.9 63.9 63.9 63.9GE 90001 24.7 91.5 96.3 S3.4 96.9 S8.9 60.9 62.5 61.6 69.3 66.6 61.3 61.9 61.9 61.9 67.SG.E P 00 1 26.5 99.90 40 9.8 S6.3 99.6 62.0 63.6 65.5 61.2 65.9 10.9 10.9 13.3 13.0 71.0 11.01. r 30001 21.6 96.1 92.1 S4.9 62.6 69.3 61.2 69.9 10.1 12.91 11.9 79.91 79.6 194.6 79.6 19.6

(If 25003 21.9 96.6 S13 59.6 63." 66.3 65.2 10.9 73.9 13.1 7- . 1%. 1S.9 19.9 75.9 7S.96E0 20001 29.3 95.5 93.1 62.3 66.3 69.2 71.4 13.1 15.1 16.9 15.9 19.0 79.1 Y9*3 79.3 79.33.F 35003 29.5 99.1 99.3 69.3 65.9 13.1 13.9 16.9 11.5 19.6 53.3 53.6 63.5 93.5 62.6 53.5tE 39003 10.1 93.5 57.3 66.6 13.9 T9.9 76.6 19.9 50.5 62.1 114.1 59.8 55.0 59.0 &S.0 59..J41O 3zOnl 30.6 S2.1 95.14 66.9 13.91 36.3 15.6 53.6 51.0 @9.a 50.7 57.2 57.9 51.9 57.9 51.9

6E 3Wo01 30.6 92.1 95.91 65.7 33.7 16.6 19.3 52.5 410.2 66.0 65.0 55.6 Be.1 9o.? 65.1 56.16f 9003 30.6 92.9 99.6 65.9 1.9 16.9 19.3 53.0 e9.1 96.2 95P.7 55.1 55.9 59.3 59.1 59.31r 5001 30.6 93.0 99.5 69.0 19.7 11 19.6 53.3 69.7 96.9 59.6 59.3 59.2 99.9 59.9 89.4GF 1001 30.6 9 3.2 $4.1 69.? 15.1 11.9 50.9 @9.5 56.0 65.6 9fl.? 93.2 91.6 91.6 93.5 91.5GE0 6013 30.6 93.2 99.3 69.7 ?%13 1 50.6 69.2 56.1 69.9 91.6 9.3. 92.9 92.b 91.6 9Z.6

GE 9003 30.6 93.2 S9.3 69.7 19.3 76.3 81.0 59.4 56.9 69.7 91.9 92.6 9?.9 93.1 93.3 93.3GE 901O 30.6 93.2 99.3 69.9 I5.9 15.6 53.9 66.2 61.1 90.3 99.3 93.5 99.9 99.6 99.6 99.6LE 3001 30.6 93.2 59.1 69.9 I9.9 75.6 53.5 56.2 571 93.1 91.3 9%.3 ,9. 99.9 9S.6 96.0I.E 2001 30.6 S3.2 99.3 69.9 15.9 16.6 53.5 56.2 571 90.1 91.9 99.3 99.9 96.3 96.6 95.06( loci 30.6 53.Z S9.3 69.9 79.9 75.6 52.9 56.2 41.1 90.1 91.9 99.3 9S.1 91.0 91.9 99.5

GO 01 3n1.6 S3.2 5.9.3 69.9 15.4 15.6 6l.9 66.2 51.1 90.1 91.9 99.3 9S.1 97.o 91.5 300.0

T0T51 NUMPER Of ONSERVAIIONS: %99

*h

GLOBAL5 CLINATOL0S.V BRANCH PCEIA6[ FN-UUENCY OF 0CCURGENCE of CEILING VERTSUS VISIBNILITYUSA , T A C FR0M HOU4LY OBSERVATION$,AIR .IAIIEB Sf8Vl01/96C

STATION NUMBR:R. 0637S1 $TAT I ONAM4E: . 71RIK ZE.: NI PEP100OF RECOPO: 71,9nT-66MONTH4: OCT HOURSILSTI: 1700-1400

CEIL1I06 VISIBILITY IN 61611111 "ILESI N 3 61 bf r 1 51 GE 61 G. ft ,E r5 61 fi t Gr GE IC 1 1 GE

FEET I In3 5. 6 It 2 1?2 2 1 112 1 1/9 1 Y/N 6/0 112 S/216 3/4

NO CEII 1 194.9 24.. L 5. 2601 . I 30.: v 5i. 1 32.94 31. 1 39 .3 44.9 3 .% TN .9 34.N 34.N 34.% 3.9.

GE1 ?10001 36.1 29.1 31.1 394.6 371 38.3 39.1 NI. 6 931.7 4I.9 92.2 92.2 92.2 42.2 92.2 962.21[ 160005 16.7 30.2 31.b 36.1 37.6 59.0 90o.5 92.9 92.6 N?.? 93.0 43.0 495.0 93.0 95.0 43.0GE. 5611001 10.7 30.2 31 .( 35.1 31.6 1.9.0 90.5 42.4 912. S 92.1 "n 3.0 9 3.0 930 3.0 A 3.0 % 3.U6It 10003 19.0 70.65 32.3 1 56.6A 38.1 39.5 93.0 92.9 93.0 93.2 9 1.. 93.6 93.6 93.6 95.6 43.54.1 12000 I Z0. 2 3.9 33.1 37. 3 39.1 91. 3 92.9 too. a 99.9 9S.1 9IS.% 96s.9 1 9.9 95.9 %%.4 95.9

61 500u03 Z1.6 16.S 1 3.~ Z 93.1 96b.3 Np. V 49.6 S 6S.6 S3 . 7 "1.9 5?.A, 52.4 62.91 '2.9 '1 2.4 1 z.9t,[ 9V00 ccI2.94 51.6 97.3 96.1 NT.q 99.6 61.1 5S.3 63.5 S3. S-.1 69. 6.1 S. ,9.1 69.1 54.514.1. 851003 13. 2 39. 1 92 .9 96.1 61.1 55.2 69.1 S7.0 57.3 57.6 7. 9 S?7.9 S7.9 571.9 67.9 51.96E Wo003 21.? 4c.3J 93.6 96l.17 5 .P 53.11 56.4 61.6 67.9 569.3 119. 7 58.7 56.7 58.7 59.7 5b.16.F 60003 25.8 9511 99 4.5 99.9 62.5 6A. 6 S6.? 66.9 568.7 -9.0 59.6 -69 .5 69.6 59.5 .9.6 S 69.5

61 60003 ?29.0 931 964.2 60.8 So. ; 66.3 S7.9 60.2 60.6 60.6 63.9 b6I. 4 61.9 61.96 65 .9 61.45.c 96003 29.6 93.6 97.1 S3.2 66.8 S4.9 60.6 61.71 63.0 63.3 69a. r 69.0 69.0 696.0 69 .0 b4-061E 9r0al 21. 3 9?.5 5j 61. 3 65.5 63.6B 65.9 61.3 66.1 &6.1 69.9 69.9 69.4 69.91 69.9 69.9&1 35001 28. 99. 63. 60.: 69.61: bl: : 69. 11.9 12. 13.0 7 3.1 13.7 13.1 73.1 13.1 7 1

61 000 2-.6 452.5 56.0n 63.1 68. 15. 13.0 76.9 16.34 77 1 7.6 3. 1 7.6 17.6 11 .6 7: 7 7.8

LIE 2603 Jr.6 69S. 0 61.9 66.0 10.6 719.1 76.7 1a. 1 19.2 610.3 65.0 At5.0 81.0 P1.0 85.0 P5.0(,E e0OJ 1 32. 1 %6.31 6J.1 66.6 ?75.7 77. 3 18.9 61.9 62.9 63.6 8N.1 99.1 69. 9.1 -14 .1 8 9p4.1I'.E 5861 31.0 S1.5 65 .9 10.2 IS.., 16.9 80.6 83.6 69.0 96.5 66A.7 P5.7 as.7 A6.7 66.7 85.167 36003 3'. r 56.91 61 .9 15.9 ?17.3 1 Mi 0 82.9 86.~2 o6.7 q7.8 84.% Be.% 66.9 49.9 69R.91 86.95.f157403 35I. 1 S9.9 61 .1 72.9 16.1 6..1 69.9 86.1 66.6 P9.61 9fl 6 90.6 93.6 90.6 9n.6 911.6

LIE 30110 3T* 5 . 9.01 63.9 13.2z 79.9 82.S 69.9 @6.71 69.2 90.6 95.6 951.6A 91.6 91.6 95.6 91.bfi. qua 3 33.1 59g.9 690.1 13.6 76.71 &;.9 66 .2 69.0 49.6 95.5 97.5 92.1 9Z.) 92.1 97.5 9W.161[ 4 O 553.6 59.0 69g.6 79 .3 19.1 69.5 8 6.1 90.6 V1.3 92.S 9' .6 91.8 93.6 93.68 93.6 93.665 1005 31Y.8 60.0 69.9 ft9.6 80.7 691.6 87.3 91.91 92.5 93.4 94.8 99.8 99.9 f 9.61 99.6 994.6(If 60013 31.8 60.3 6S.2 19.9 so0.. 69. 9 81.6 95. 1 92.-5 99.3 9%.2 96.2 96.91 95.9 96.90 96.9

LIE $ u5 1 33.9 60.3 66 .2 790.9 80.0 951.2 67.9 92.9 93.31 96.9 97.0 97.0 91.5 91.5 91.5 97?.5I5.1 *o 013 33.6 60.31 61,.? 79.9 60.8 66.2 67.9 92.S 93.1 96.2 91.9 97.9 96.5 96.3 91. 3 96.361 1005 35.8 60.3 66 .2 79 .9 60.8 96.2 67.9 92.6 93.7 96 . 9A.5 96.9 96.6 99.0 99.0 99.0..1 2001 .55.8 60.3 65.2 19 .9 00.~ 66A.2 67.9 92.6 93.7 96.2 99 .5 96.6 96 . 99.2 99 .9s 99.6G(.I1 5113 5. 60.31 6S.? 19. 9 60.9 66.2 81.9 92.S 93.1 96.? 991.5 96.6 99.2 99.7 99.6 500.0

51 231.6 60.35 6S.2 TO9.9 on5.9 ss.2 S7.9 92.5 93.7 96.2 99.5 96.6 99.2 99.7 99.6 100.0

TOTAL MNPfl85 or O861888T50NS: 1.35

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FR UENCY Of OCCURRENCE Of CEILING VERSUS VISIBILITYUSAFETAC FRON HOUQLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION MUMI)ER: 063250 $TAT ION NAME: 1ERIKZE NL PERIOD OF RECORD: 77,79-86MONIH: OCt HOURSALSII: I500-1700

CEILING VISIBILIPY IN STATUTE MILES ''

IN GE GE GE GE GE G6 GE GE GE GE GE Gt GE FE GL GrFEET i 1 6 5 N 3 2 1/2 2 1 1/2 1 1/9 1 3/1 5/8 112 5/16 IN 0

NO CIL I 17.1 23.9 Z5.2 26.6 29.8 31.0 31.5 32.0 33.3 33.8 34.0 34.2 39.2 34.2 3N.2 3.2

F1 200|01 21.It 31.9 33.b 35.0 38.? 39.6 O.3 41.0 42.0 83.0 43.1 43.3 03.3 03.3 43.3 43.3ut 18000 21.8 31.9 33.6 35.2 38.6 40. 1 00.8 41.9 43.0 43.5 43. 7 3.8 43.8 03.8 03.8 03.8GE ibo0 1 21.s 31.9 33.( 35.2 38.6 00. 1 0.8 41.9 03.0 03.5 43.7 43.8 43.8 03.8 N3.8 03.8

GE 14000 21.8 31.9 33.6 35.2 38.6 00.1 0.a 02.1 03.1 03.7 43.8 44.0 44.0 00.0 44.0 4.0GE IZnnl 22.7 !2.9 38.7 36.4 o.0 41. 5 02.3 N3. S NO.? 05.2 N5.0 45.6 4S.6 06.6 45.b 05.6

GE IU0000 ZT.S 00.8 03.1 5.08 9.0 51.8 52.6 S3.9 55.1 55.8 56.0 56.2 56.2 56.2 56.2 56.2GE 90001 28.3 02.1 40.5 07.0 51.6 S3.5 50.0 55.6 56-9 S7.7 57.9 58.1 S8.1 58.1 59.1 58.1GE 8l001 29.Z 00.9 40.1 51.6 56.1 58.3 59.2 60.% bl.6 62.5 b?.q 63.0 63.0 63.0 63.0 63.0GE 7001 29.4 16.1 00.1 52.1 56.7 59.0 69.9 61.1 62.3 63.2 63.6 63.7 63.7 63.7 63.7 63.7GE 6000 29.8 96.1 %9.3 53.3 57.9 60.2 61.1 62.5 63.7 60.6 6S.0 65.1 65.1 65.1 65.1 b5.1

GE 57001 30.6 08.1 51.2 55.3 59.9 62.1 63.0 61.4 65.7 66.5 66.9 67.1 67.1 67.1 67.1 67.1UE 05001 30.8 08.8 51.9 56.2 60.9 63.2 60.1 65.5 66.9 67.8 60I.1 68.3 68.3 68.3 68.3 68.3UE 40001 33., 53.Z 66.7 6Z.0 66.7 69.0 70.1 71.8 73.2 70.1 70.5 70.6 70.6 70.6 70.6 70.66E aOlIJ 30.3 54.8 59.5 63.9 69.? 11.5 72.5 70.3 75.7 76.6 76.9 77.1 77.1 77.1 77.1 77.1G 3u0I 35.7 56.5 60.0 65.8 71.0 70.1 75.2 77.1 78.s 79.0 79.8 79.9 79.9 79.9 19.9 79.9

Gr 25001 37.3 59.0 63.2 69.0 75.2 77.5 78.7 80.6 82.0 82.9 83.3 83.5 83.5 83.5 83.5 83.5G 20001 38.7 60.9 65.1 71.1 7.5 79.8 81.0 82.9 84.3 85.2 85.6 85.7 85.7 85.7 65.7 15.7GE 18001 00.0 6Z.7 66.9 72.9 79.6 81.9 83.3 85.2 86.6 87.7 88.0 88.2 88.2 88.2 88.2 p8.ZG. 15001 00.1 60.b 68.8 75.2 8z.0 80.5 85.9 87.9 89.3 90.3 90.7 90.8 90.8 91.8 90.8 9U.8(E 1001 010.3 60.6 69.0 76.1 82.. 85.6 87.1 89.8 91.2 92.3 92.6 92.8 92.8 92.8 92.0 92.8

Gr 100fl 00.3 65.U 69.2 76.2 63.1 85.9 87.5 90.1 91.5 92.6 93.0 93.1 93.1 93.1 93.1 93.1I.E 9001 00.3 65.0 69.2 7b.b 83.5 46.6 88.2 90.8 92.3 93.5 94.0 90.2 9q.2 90.2 90.2 90.2.E uo 00.3 6S.1 69.5 77.1 84.2 87.3 89.3 92.1 93.7 94.9 9.0 95.6 95.6 95.6 95.6 95.6(I 7001 "0.3 65.1 69.5 77.1 80.5 88.0 90.0 92.8 90.0 95.8 96.- 96.8 96.8 96.8 96.8 96.98GE boot 00.3 65.1 69.5 71.3 80.7 88.2 90.1 93.1 90.7 96.3 97.0 97.0 97.0 97.- 97.4 97.0

GE 5001 10.3 65.1 60.5 71.3 80.9 88.6 90.5 93.7 9S.2 97.z 97.9 98.6 98.8 98.8 98.8 98.8LE %UO 900.3 65.1 69.5 77.3 80.9 88.6 90.7 93.8 95. 97.7 98.8 99.1 99.3 99.3 99.3 99.3

E 3 001 q0.3 6S.1 69.5 77.3 80.9 88.6 90.7 93.8 95.4 97.7 98.6 99.3 99.5 99.5 99.5 99.5GE .GO 00.3 65.1 69.5 7.3 84.9 88.6 90.7 93.8 95.0 91.1 98.6 99.5 99.6 99.8 99.8 100.0(f 1001 00.3 65.1 69.6 71.3 80.9 88.6 90.7 93.8 9S.4 97.7 981.6 99.5 99.6 99.0 99.8 100.0

UE 01 0.1 65.1 6.j 77.3 80.9 88.6 90.7 93.8 95.0 97.7 90.6 99.5 99.6 99.8 99.8 100.0

..........................................................................................................................

T01AL 011081. Of O8SERVATIONS:- 566

GLOBAL CLIMAIOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CrILIfJG VERSUS VISIBILITYUS AFETAC FROM HOUILY OBSERVATIONS

AIR UEATNER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME. ZIERINZEE NL PEQIOD OF RECOPO: 77,79-86

MONTH: OCT HOURSILSTI: 1800-2000

...............................................................................................................................................CEILING VISIBILITY IN STATUTE MILES

IN I GE GE GE GE GE GE GE GE GE GE GL GE GE GE GE 6EFEET I 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 5/8 12 5/1b 1/8 0

NO CEIL I 19.0 27.4 2.4 30.6 34.1 35.7 37.1 38.4 39.2 o.4 '1.2 41.6 41.6 41.6 41.b 2.2

GE 20GO0 22.2 32.4 34.2 37.1 40.9 42.9 44.2 45.6 46.4 47.6 48.4 48.7 48.7 "8.7 48.7 49.4GE 18C001 22.Z 32.4 3'.2 3.1 41.Z 43.2 44.6 45.9 46.7 97.9 48.7 9.1 49.1 49.1 49.1 '9.76E 160031 22.2 32.4 34.2 37.1 41.2 43.2 44.6 '5.9 46.7 47.9 48.7 49.1 %9.1 Q9.1 49.1 49.7

GE 1140001 22.2 32.4 34.2 37.1 '1.2 43.2 '64.6 '65.9 46.T 47.9 41.7 49.1 '69.1 '9.1 49.1 49.7GE 120001 22.2 32.4 34.2 37.4 41-b 43.6 48.9 416.4 47.2 48.4 49.2 49.6 49.6 49.6 49.6 SU.3

GE 100001 25.0 37.2 39.2 43.1 48.2 50.6 51.9 53.4 54.3 55.4 56.3 56.6 56.6 56.6 56.6 57.3GE 90001 26.0 38.7 41.2 65.1 50.4 52.8 54.1 55.6 56.8 57.6 58.4 58.8 58.8 58.8 58.8 59.4

GE 8nO01 26.9 40.9 63.6 47.7 53.4 55.8 57.3 58.8 59.6 60.9 61.8 62.1 62.1 62.k 62.1 62.8

GE 70001 27.0 81.8 '4. '66.2 54.j 56.4 57.9 59.8 60.3 61.6 62.4 62.8 62.8 62.8 62.8 64.4GE 60001 27.8 81.7 44.4 48.6 54.4 56.8 58.3 59.8 60.6 61.9 62.8 63.1 63.3 63.1 63.1 63.8

GE SPo 1 28.2 43.7 46.4 50.9 56.9 59.3 60.8 62.3 63.1 64.4 65.3 65.6 65.6 65.6 65.6 66.3GE '5U0 28.5 44.6 '67.6 52.3 58.3 60.8 62.3 63.8 64.6 65.9 66.8 67.1 6T.1 67.1 67.1 67.8GE 4CO9 29.9 '7.6 50.6 55.4 61.8 64.4 65.9 67.6 68.6 69.9 70.8 71.1 71.1 71.1 71.1 71.8GE 35001 33.1 513 54.4 59.9 66.4 69.3 71:1 72.8 74.0 75.3 76.1 76.5 76.5 76.5 76.5 77.1GE 30001 38.2 53.3 56.4 62.1 68.9 71.8 73.6 75.3 76.s 77.8 78.6 79.0 19.0 79.0 79.0 79.6

GE 25001 35.1 S5.4 S5.8 64.9 72.0 74.8 76.8 78.5 79.6 81.0 83.8 82.1 82.1 82.1 87.1 82.8GE 20001 35.7 56.6 6a.8 67.1 74.3 77.1 79.3 81.0 82.1 F3.5 84.3 84.6 84.6 84.6 84.6 RS.3GE 18La 36.6 57.9 62.1 69.1 76.5 79.5 81.6 83.3 84.6 86.0 86.8 87.1 87.1 R.1 87.1 87.8GE 35001 36.7 59.4 63.6 70.8 78.3 81.3 83.5 85.3 86.6 98.0 88.8 89.1 89.1 89.1 89.1 89.8GE 12001 37.7 60.8 68.8 72.6 80.6 84.0 86.1 88.3 89.8 91.2 92.0 92-3 92.3 92.3 92.3 93.0

GE 3009 37.7 60.q 64.8 72.8 8O.b 8.3 86.5 88.6 90.2 91.5 97.3 92.7 92.7 92.7 9.7 93.3

GE 9001 37.7 60.4 64.8 73.0 81.3 8s.1 87.6 89.8 91.3 *2.8 93.? 94.U 94.0 98.0 94.0 94.7GE 8031 37.7 6C.6 bS.1 14.1 82.5 86.8 89.3 91.5 93.2 98.7 91.5 95.8 95.8 95.8 95.8 96.5GE 7001 37.1 60.8 65.6 7,6 83.3 87.5 90.2 92.5 9.2 95.8 T6.7 97.2 97.2 97.2 97.2 97.8GE 600 31.7 60.9 6 .8 74.8 83.9 88.3 91.0 93.3 95.0 '67 87.5 98,0 98.0 98.0 98.0 98.7

GE SOot 37.7 60.9 65, 74.8 83.8 88.5 93.2 93.5 95.3 97.0 97.8 98.3 98.5 98.S 98.S 99.26E 4001 37.7 60.9 65.8 75.0 84.0 86.8 91.5 93.8 95.7 97.3 98.2 98.7 98.8 98.8 98.8 99.5

GE 00l 37.? 60.9 65.8 75.0 84.3 $8.8 91.5 93.8 95.7 97.3 98.2 98.7 96.8 98.8 98.8 99.5GE 2001 37.7 60.9 65.8 S. 88.1 88.6 91.5 93.8 95.7 97.S 98.3 98.8 99.0 99.0 99.0 100.0GE 1ool 31.? 60.9 65.8 7S.0 849 88.8 91S 93.8 95.7 97.5 90.3 98.8 99.0 99.0 99.0 100.0

GE 01 37.? 60.9 65.8 75.o 84.0 88.0 91.s 93.8 95.? 97.5 98.3 98.8 99.0 99.0 99.0 100.0


GLOBAL CLIMAIOLOGY BRANCH PERCENTAGr FREQUENCY oF OCCURPENCE OF CEILING VERSUS VISIBILITYUSAET AC FROM HOULY ObSERVATIONS


STATION NUMBER: 063250 STAt ION NAME: ZIERIKZE3 NL PEPIOD OF RECORO: 77,83-86MONTH: OCT HOURSILSTI: 2100-2300


IN l GE GD GE GE GE G GE GE GE GL GE GE GL GE GE GEFEET I 10 6 5 4 2 112 2 1 112 1 1/4 1 3/4 5/8 1/2 S/16 1/4 0

NO CElL 1 11.6 26.3 33.. 33.4 37.3 38.7 40.1 41.7 42.2 42.4 42.5 42.5 43.2 43.2 43.8 44.3

GE 200001 15.6 31.6 3N.1 37.3 43. 42.7 44.1 45.1 46.2 46.4 46.6 46.6 47.3 47.3 47.8 48.3

GE 180ro 26.6 31.6 34.1 $T.3 41.1 42.7 44.1 45.7 46.2 46.4 46.6 46.6 47.3 47.3 47.8 48.34E 1b0O 15.6 31.6 34.1 37.3 43.2 42.1 ll.1 45.7 46.2 46.4 46.6 46.6 47.3 47.3 47.8 48.3G( 4on 15.6 31.6 34.1 37.3 41.1 42.1 44.3 45.7 46.2 46.4 46.6 46.6 47.3 47.3 47.8 48.3G 12nGoo1 15.6 31.6 34.1 37.3 41.3 42.7 44.I d5.1 46.2 46.6 46.6 46.6 47.3 47.3 47.8 48.3

GE IbGO0 16.9 34.8 37.4 40.8 44.p %6.% 78 49.4 49.9 50.1 S.3 50.3 51.0 51.0 51.5 52.0(.E 9COOI 17.2 35.9 38.5 42. 4b.2 17.8 49.2 50.8 51.3 51.5 51.7 51.7 52.4 52.4 52.9 53.4bE 80001 17.8 37.3 43.1 43.8 48.0 49.6 51.0 52.5 53.1 53.3 53.4 S3.4 54.1 54.1 54.7 55.2GE 70001 37.9 3.4 43.4 44%.1 48.3 49.9 51.3 53.1 53.6 53.8 54.0 S4.0 54.7 54.7 55.2 65.7bE 60001 17.9 37.6 40.b 44.3 44.S S0.1 51.5 53.6 54.1 51.3 54.5 54.5 55.2 55.2 $5.7 56.2

.E 50001 3.1 39.7 42.9 46.7 510 52.7 54.1 56.6 57.1 57.5 57.6 67.6 58.3 58.3 68.9 59.4I. 46001 16.5 409 44.3 46.2 52.4 S4.2 55.5 58.2 s6.7 59.1 59.2 59.2 59.9 59.9 60.5 61.0GE qOO 21.4 147.1 51.1 S5.S 61.2 63.1 64.5 67.1 67.7 68.0 63.2 68.2 68.9 68.9 69.4 69.9GE 35U01 24.3 52.2 56.6 61.5 67.3 69. 4 71.0 73.6 71.2 7%.5 74.7 74.7 75.4 75.4 75.9 76.4GE 30001 25.0 54.$ 59.4 64.5 10. 72.6 74.2 76.8 17.3 77.7 77.9 77.9 78.6 78.6 79.1 79.6

GE 25001 25.1 S6.8 61.7 61.3 713.1 75.4 77.0 79.6 80.1 80.5 80.7 80.7 81.4 81.4 81.9 82.4I.E 2COOJ 25.3 57.5 62.9 68.5 74.5 76.8 78.4 81.2 61.7 82.1 82.2 82.2 83.0 83.0 83.5 84.0GE 31001 25.5 56.5 b4.0 69.6 15.9 78.2 80.0 82.8 83.3 83.7 83.8 83.8 84.5 64.5 85.1 85.6L. 150 1 25.7 59.8 65.6 71.? 78.4 80.8 82.8 85.6 86.1 86.5 86.6 86.6 87.3 87.3 87.9 88.46( 12001 26.4 60.8 67.7 74.3 81.7 83.8 85.8 88.8 89.3 89.6 89.8 89.8 90.5 90.5 91.0 91.6

I.E 10001 26.4 60.6 68.2 75.0 82.4 85.6 87.5 90.5 91.0 91.4 91.6 91.6 92.3 92.3 92.8 93.3.E 9001 26.4 61.0 84.4 75.2 82.q 86.3 86.6 91.6 92.1 92.4 92.6 92.6 93.3 93.3 93.8 94.44E AGO1 26.4 61.2 6 ,7 75.9 84.2 88.0 90.3 93.5 94.0 94.4 94.6 94.6 95.3 95.3 95.8 46.3GE 700 26.4 61.3 64.9 76.3 85.2 89.6 92.1 95.3 95.8 96.1 96.3 96.3 97.0 97.0 97.5 98.1GE 6001 26.4 61.3 64.9 76.8 86.3 9C.9 93.3 96.7 97.2 97.5 97.7 97.7 98.4 98.4 9M.9 99.5

I.E 5001 26.4 61.3 64.9 76.8 86.3 91.0 93.5 96.8 9?.4 97.7 97.9 97.9 98.6 98.6 99.1 99.6G(E 4001 26.4 61.3 68.9 76.8 86.3 91.0 93.S 96.8 97.5 97.9 98.1 98.1 98.8 98.8 99.3 99.8GE 3001 26.4 61.3 64.9 76.8 86.3 91.2 93.7 97.0 97.7 98. 98.2 98.2 98.9 98.9 99.5 100.0I.E 2001 26.41 61.3 69.9 76.8 66.3 91.2 93.7 97.0 97.7 98.1 99.2 98.2 98.9 98.9 99.5 100.0GE OO 26.4 61.3 68.9 76.8 86.3 91.2 93.1 97.0 97.7 98.1 9P.2 98.2 98.9 98.9 99.5 100.0

GE O 26.4 61.3 64.9 76.8 86.3 91.2 93.7 97.0 97.7 98., 9A.2 98.2 98.9 98.9 99.5 100.0

..........................................................................................................................

TOTAL PUMPER Of OBSERVATIONS- 569

dbK

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREOUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063750 STATION NAME: ZIERIKZE NL PU'IOO Or RECORD: 77,79-86MONTH: OCT HOURSILSTI: ALL

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE GE GE GE GE GE GC GE GE GE GE GE

FEET I I0 6 5 N 1 2 112 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0

NO CLIL I 1S.q 25.4 27.1 29.7 32.5 33.8 34.6 36.5 37.2 37.9 38.2 38.4 38.6 38.8 38.9 39.5

- GE 200001 18.1 30.3 32.5 35.6 38.7 N0.1 N1.1 43.1 N3.9 4.6 45.1 45.Z 45.4 45.6 4S.? 4b.4GE lacuol 18.1 30.3 32.6 35.7 38.9 40.3 41.3 o3.3 44.2 44.9 45.3 45.4 4S.7 45.8 46.0 46.6.E 160001 18.1 30.3 32.6 35.7 38.9 4G.3 41.3 43.3 44.2 44.9 4r.3 45.4 45.7 45.8 46.0 46.6GE 140001 18.2 30.4 32.6 35.7 39.0 N0.4 411.4 43. N 44.3 45.0 45.4 45.6 45.8 45.9 46.1 46.7GE 120001 18.5 30.9 33.2 36.4 39.6 41.1 42.1 NN.I 45.0 45.7 N6.1 46.3 46.5 46.6 46.8 N7.q

GE 1O009 20.N 35.0 37.7 41.N 45.1 46.8 47.8 49.9 50.8 51.5 52.0 52.1 52.3 52.5 52.6 53.3

,GE 90001 21.0 36.3 39.1 43.1 46.8 48.6 49.6 51.8 52-6 53.4 53.8 54.0 54.2 54.4 54.5 55.2GE 80001 21.7 38.3 41.4 45.8 49.7 51.6 52.7 54.9 55.7 56.5 57.1 57.3 57.5 57.6 57.8 58.5

GE 7ool 21.9 38.6 41.4 46.2 50.2 52.1 53.1 55.3 56.2 57.0 57.6 57.8 58.( 58.2 S.4 59.0

GE b0001 22.0 39.0 422 4 6.7 50.7 52.5 53.6 55.9 56.7 57.6 5A.2 58.4 58.6 t.8 58.9 59.6

GE SCU01 22.6 40.6 44.0 48.7 52.9 54.8 55.9 58.2 59.1 60.1 60.7 60.9 61.1 61.3 61.4 62.1GE 4'001 23.2 42.3 45.9 50.8 55.0 57.0 58.1 60.5 61.5 62-4 63.0 63.2 63.4 63.6 63.8 64.4GE 40001 25.4 46.2 53.1 55.6 60.2 62.4 63.5 66.1 67.1 68.1 6P.7 68.9 69.1 69.3 69.5 70.1GE 35001 27.3 49.2 53.4 59.1 63.9 66.3 67.5 70.1 71.1 72.1 72.8 73.0 73.2 73.4 73.5 74.2GE 30001 28.4 51.4 55.8 61.9 67.0 69.6 70.8 73.5 74.6 75.6 76.3 76.5 76.7 76.9 77.1 77.7

GE ZSUO 29.2 53.2 57.9 64.3 69.6 72.2 73.5 76.2 77.3 79.4 79.1 79.3 79.5 79.7 79.9 80.5GE 20009 30.1 54.8 59.9 66.5 72.1 74.7 16.1 76.9 80.0 81.1 81.8 81.9 8z.2 82.4 82.5 83.2

GE 18009 30.5 56.0 61.2 68.2 74.0 76.7 78.1 81.0 82.1 83.3 84.0 84.2 84.4 84.6 84.8 85.4GE 15009 30.8 57.3 62.9 70.2 76.3 79.1 80.6 83.6 84.8 86.0 86.6 b6.8 87.0 87.2 87.4 88.1GE 12009 31.2 58.1 63.8 71.6 77.9 80.9 82.5 85.1 86.9 88.1 88.8 89.0 89.3 89.4 89.6 90.3

UE 1CO01 31.2 58.2 64.1 72.0 78.6 81.7 83.4 86.8 88.0 99.3 90.0 90.2 90.5 90.6 90.8 91.5GE 9001 31.2 58.4 64.2 72.3 79.r 82.41 84.2 87.7 88.9 90.2 91.0 91.2 91.4 91.6 91.8 92.4

GE 8001 31.2 58.5 64.5 72.9 79.9 83.3 85.2 88.9 90.2 91.5 92.3 92.5 92.7 92.9 93.1 93.7UE loot 31.2 58.7 64.1 73.2 80.5 84.2 86.2 89.9 91.2 92.7 93.5 93.8 94.1 94.3 94.5 95.1

GE 6009 31.2 58.8 64.9 73.5 81.0 84.8 86.8 90.7 92.1 93.7 94.5 94.8 95.1 95.3 95.5 96.1

GE 5001 31.2 58.8 65.0 73.7 1.T 85.2 87.3 91.4 92.9 94.6 T5.6 96.0 96.3 96.5 96.7 97.3GE %on0 32 58-8 65.0 73.8 684 85. 4 87.5 93.7 93.3 95.2 96.2 96.6 97.0 97.3 97.5 98.2GE 3001 31.2 58.8 65.0 73.8 81.4 85.4 67.5 91.9 93.5 95.4 96.5 97.0 97.4 97.8 98.1 98.8GE 2001 31.2 58.8 65.9 73.8 81.4 85.4 87.5 91.9 93.5 95.4 96.6 97.1 97.5 98.0 98.3 99.3GE 1009 31.2 58.8 65.3 73.8 81.4 85.4 87.5 91.9 93.5 95.4 96.6 97.1 97.6 98.3 98.6 99.9

GE 09 31.2 58.8 65.0 73.8 81.4 8S.4 87.5 91.9 93.5 95.4 96.6 97.1 97.6 98.3 98.6 100.0

TOTAL NUMBER OF ORSERVATIONS: %6b3

io.

GL08AL CLIMATOLOGY BRANCH PERCENTAGE FRCGUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOU9LY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PEPIOD OF RECORO: 80-86MONTH: NOV HOURSILSTI: 0000-0200

CEILING VISIILITY IN STATUTE MILESIN GE GE SE GE GE G. GE GE GE GE GE GE GE GE GE GE

FEET I 1o 6 5 3 2 112 2 1 112 1 1/9 1 3/4 5/8 112 5/16 1/4 0

NO CElL 1 15.4 25.6 28.2 31.0 33.1 34.9 36.1 37.9 38.5 3S.7 38.9 39.1 39.1 39.1 39.4 39.4

vE 200001 16.2 29.2 31.8 34.7 36.9 39.1 40.4 42.4 43.0 43.2 43.4 43.6 43.6 43.6 43.8 43.8GE 18000 i 16.2 29.2 31.8 34.7 36.9 39.1 40.4 42.4 43.0 43.2 41.4 43.6 43.6 43.b 43.8 43.bGE 1ooI 16.2 29.2 31.A 34.7 36.9 39.1 40.4 42.4 43.0 43.2 43.4 43.6 43.6 43.6 43.8 43.8

GE 14000 16.2 29.2 31.8 34.7 36.9 39.1 40.4 42.4 43.0 43.2 43.4 43.6 43.6 43.6 43.8 43.8

T.E 120001 16.2 29.2 32.0 34.9 37.1 39.4 40.6 4Z.6 43.2 93.4 43.6 43.8 43.8 43.8 44.0 44.0

GE 100001 16.8 1.6 34.5 37.3 39.8 q2.0 a 3.2 45.2 45.8 46.1) 46.2 4b.S 46.5 46.5 46.7 46.7GE 90001 16.8 32.3 3S.1 38.3 41.b 43.8 45.0 t7.1 47.7 47.9 4P.1 48.3 48.3 48.3 48.5 48.7GF Bout1 17.4 34.3 37.1 40.4 43.8 46.0 47.3 49.3 49.9 50.1 5D.3 50.5 50.5 5O.S 50.7 50.9GE 70001 17.4 34.3 37.1 40.4 43.8 46.0 47.3 49.3 49.9 50.1 S0.3 50.5 50.5 50o.5 50.7 50.9GE 60001 17.4 35.1 37.9 41.8 45.2 47.5 48.7 50.7 51.3 51.5 51.7 51.9 51.9 51.9 52.1 52.3

6E 5000 1 17.8 37.5 41 .2 45.2 48.7 50.9 52.1 54.2 54.8 55.0 55.2 5S.4 55.4 55.4 55.6 55.8QE 45001 18.1 38.1 47.Z 46.5 49.9 52.3 53.5 55.6 56.2 56.4 56.6 56.8 56.8 56.8 57.0 57.2GF 4ool 20.1 42.b 46.9 51.5 55.6 58.2 59.4 61.7 62.5 62.7 62.9 63.1 63.1 63.1 63.3 63.5

:E 3500w 22.5 46.9 53.9 56.b 60.9 63.9 65.1 67.3 68.2 68.4 68.6 68.8 68.8 68.8 69.0 69.2

IL 3r. an 2I.9 S.7 57.2 62.5 67.1 70.2 71.4 73.6 74.4 74.6 74.8 7S.1 75.1 75.1 75.3 75.5

GE 2S01 25.2 53.5 59.6 65.7 70.4 73.4 74.6 77.3 78.1 78.3 78.5 78.7 78.7 78.7 78.9 79.14E 20001 26.0 55.2 b1 .5 68.2 73.2 76.5 77.9 80.5 81.3 91.5 81.7 81.9 81.9 81.9 82.2 82.4GE 18001 26.0 55.8 67.7 69.6 74.8 78.1 79.5 82.2 83.0 83.2 83.4 83.6 83.6 83.6 83.8 84.0GE 15001 26.4 57.6 b4.7 71.8 77.1 80.7 82.2 84.8 85.6 85.8 86.0 86.2 86.2 86.2 86.4 86.6tE 12001 26.8 59.2 66.3 73.6 78.9 82.6 84.0 86.8 87.6 88.0 88.2 48.4 88.4 88.4 88.6 88.8

uE 10001 26.A 59.4 66.5 73.8 79.1 83.0 84.4 87.4 88.2 88.8 89.2 89.5 89.5 49.5 69.7 89.9

GE 9001 26.8 S9.4 6b.7 74.0 79.5 93.4 84.8 87.8 88.6 89.2 89.9 90.1 93.1 90.1 90.3 90.SGE 8001 26.8 S9.4 66.7 74.0 79.7 83.6 85.0 88.4 89.2 89.9 9ns 90.7 90.7 90.7 90.9 91.1GE 7001 26.8 59.6 67.3 74.6 80.5 84.4 86.0 90.3 91.3 92.3 97.9 93.1 93.1 93.1 93.3 93.5

GE 6001 26.8 59.6 67.3 74.6 81.1 95.0 87.0 91.7 92.9 94. 3 945.9 95.1 95.1 95.1 95.3 95.5

GE 5301 26.9 59.6 67.3 74.8 81.3 85.2 87.4 92.7 93.9 95.3 95.9 96.1 96.1 96.1 96.3 96.6GE 4001 26.8 59.6 67.3 74.8 81.3 85.2 87.4 92.7 93.9 95.7 96.3 96.6 96.6 96.8 97.0 97.2

GE 301) 26.P 59,6 67.3 74.8 aI. 1 85.2 87.4 92.7 93.9 95.9 96.8 97.0 97.2 97.4 97.6 97.8GE 2001 26.8 59.6 67.3 74.9 81.S 85.2 87.4 92.7 93.9 96.1 97.0 97.2 97.4 97.6 97.8 98.4GE 1001 26.8 59.6 67.3 74.8 81.3 85.2 87.4 92.7 93.9 96.1 97.0 97.2 97.4 98.0 98.2 99.2

GE 01 26.8 59.6 67.3 74.8 81.9 85.2 87.4 92.7 93.9 46.1 97.9 97.2 97.4 98.0 98.2 100.0

TOTAL NUMBER OF OFSERVATIE0IS: 493

.ul

9 GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FR:QUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFLIAC 4FROM HOURLY OBSERVATIONSAIR 4EATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 90-84,86MONTH: NOV HOURSILSTI: 0330-0503

...........................................................................................................................

CEILING VISIBILITY IN STATUTE MILESIN I GE GE GE GE GE G- GE GE GE GE E GF GE GE GE fE

FEET I 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 58 112 1/16 1/4 0

NO CEIL I 14.1 27.7 31.6 34.7 36.5 37.8 38.2 39.8 40.2 40.7 40.7 40.7 40.7 40.7 40.7 41.3

GE 200001 14.5 30.3 34.3 37.6 39.3 40. 9 41.3 43.1 43.7 44.i 44.2 44.2 44.2 44.2 44.2 44.8GE IB00I 14.5 30.3 34.3 37.6 39.3 40.9 41.3 43.1 43.7 44.2 44.2 44.2 44.2 44.2 44.2 44.8GE 16C2001 14.5 30.3 !4.3 37.6 39.3 40.9 41.3 43.1 43.7 44.2 44.2 44.2 44.2 44.2 44.2 44.8GE 140001 14.5 30.3 34.3 37.6 39.3 40.9 41.3 43.1 43.7 44.2 44.2 44.2 44.2 44.2 44.2 44.8GE 120091 14.5 30.3 34.3 37.6 39.3 40.9 41.3 43.1 43.7 44.2 44.2 44.2 44.2 44.2 44.2 44.8

GE 100001 15.6 32.3 35.3 39.8 41.8 43.5 44.0 45.7 46.4 46.6 46.4 46.8 46.8 46.8 46.8 47.5GE 90001 15.6 32.3 36.5 40.4 42.6 44.4 44.8 46.6 47.3 47.7 47.7 47.7 47.7 47.7 47.7 48.4GI 87001 I.6 32.7 36.9 41.1 43.3 451 45.5 47.5 48.1 48.6 44.6 48.6 48.6 48.6 48.6 49.2br 7000 15.8 33.0 37.1 41.3 43.5 45.3 45.7 477 48.4 44.8 4P.P 48.8 48.8 48.8 44.8 495GE 60001 15.8 33.6 38.C 42.9 45.1 46.8 47.3 49.2 49.9 50.3 50.7 50.3 50.3 50.3 4n.3 51.0

GE 50001 16.S 35.8 43.2 45.3 47.5 49.2 49.9 51.9 52.5 53.0 53.0 53.0 53.0 53.0 53.0 53.bGE 45001 16.9 37.1 42.0 47.5 49,7 51.4 52.1 54.1 54.7 55.2 55.2 55.2 55.2 55.2 55.2 55.8IE 40001 19.8 42.4 47.7 53.4 55.6 57.4 58.0 60.0 60.7 61.1 61.1 61.1 61.1 61.1 61.1 61.8OE 35001 21.l 45.3 53.5 56.7 58.9 60.7 61.3 63.3 64.0 64.4 64.4 64.4 64.4 64.4 64.4 65.1GE 3COO1 24.2 49.7 56.3 62.4 64.8 66.6 67.3 69.2 69.9 70.3 7C.3 70.3 70.3 70.3 70.3 71.0

GE 25U01 24.4 57.7 62.2 67.3 69.7 71.4 72.1 74. 1 74.7 75.2 75.2 75.2 75.2 75.2 75.2 7s.8GE 20001 24.8 54.5 62.2 69.9 72.7 74.5 75.2 77. 1 77.8 78.2 7P.? 78.2 78.2 78.2 78.2 78.9

GE 18001 25.1 54.7 62.4 70.3 73.4 75.2 75.8 77.8 78.5 78.9 7A.9 78.9 78.9 78.9 78.9 79.6bE 15001 25.5 55.8 63.5 71.6 74.9 76.9 77.6 79.6 80.2 80.7 89.7 80.7 80.7 80.7 80.7 81.3GE 1271 Ic5.9 57.1 6E.5 75.2 78.5 80.4 81.1 83.1 83.7 84.2 84.2 84.2 84.7 84.2 84.2 84.8

GE 1(200 25.9 57.1 65.7 75.8 79.1 81.1 81.8 83.7 84.4 84.8 8Q.8 84.8 84.8 84.8 84.8 85.5uE 9001 25.9 57.1 65.9 76.0 79.8 81.8 82.4 84.4 85.1 85.4 8€,5 84.5 85. 85 . 85.7 86.4GE P0 25.4 47.1 66.6 77.4 81.) 83.3 84.2 86.4 87.0 87.5 87.5 87.5 87.5 R7.7 87.7 88.4(E 70 25.9 57.1 66.6 77.8 81.4 84.0 85.1 87.7 88.4 89.0 89.0 89.0 89.0 89.2 89.2 89.9GE 600 25.9 57.1 66.6 78.0 82.6 85.9 87.5 90.1 90.8 91.6 91.6 91.6 91.6 91.9 91.9 92.5

;E 5001 25.9 57.1 65.6 78.0 83. 1 86. 4 8R.8 91.4 92.7 94.3 94.5 94.5 94.5 94.7 94.7 95.4GE 40) 25.9 57.1 66.6 78.

0 83.1 86.4 89.2 91.9 93.6 95.2 95.4 95.4 95.4 95.6 95.6 96.3

UE 3001 25.9 57.1 66.6 78.0 83.1 86.4 89.2 91.9 93.6 95.2 95.4 95.4 95.6 95.8 95.8 96.5bE 2001 25.9 57.1 b5.6 78.U 83.1 86.4 89.2 91.9 93.6 95.4 94.6 95.8 ?6.0 96.5 96.5 97.4GE 1001 2-.9 57.1 6b.b 78.0 83.1 46.4 89.2 91.9 93.6 05.4 95.6 95.8 96.0 96.5 96.7 98.9

GE 01 25.9 57.1 65.6 78.0 83. 1 86.4 89.2 91.9 93.6 95.4 9'.6 9S.8 96.0 96.5 96.7 100.0


J

. GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FRrQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITY

USAFrIAC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEE NL PERIOD OF RECORD: 77.79-86MONTH: NOV NOURS(LSTI: 0600-0800

CEILING VISIBILITY IN STATUTE MILESIN GE GE GE GE GE Gr GE GE GE GE GE GE GE GE GE GE

FEET 10 6 5 4 3 2 112 2 1 1/2 I 1/4 1 3/4 5/8 112 5/lb 1/4 0... .. ... . . . . . . .. . . . . . . . .. . . . . . . .. . . . . .....°..° .... .................. °..°... ..... . . . °.. . ..

NO CEIL 1 14.4 20.2 22.6 26.3 28.5 29.1 29.6 30.9 30.9 31.5 31.9 32.0 32.2 32.2 32.2 33.1

GE 200001 15.6 22.4 25.4 30.0 32.6 33.1 33.7 35.4 35.4 35.9 36.5 36.7 36.9 36.9 36.9 !7.GE 18rD0 15.6 22.4 2,5. 33.0 32.6 33.1 33.7 35.4 35.4 35.9 36.5 36.7 36.9 36.9 36.9

37.8

GE 160001 15.6 22.4 25.4 30.0 32.6 33. 1 33.7 35.4 35.4 35.9 36.5 36.7 36.9 36.9 36.9 37.8GE 140001 15.6 22.6 25.6 30.2 32.8 33.3 33.9 35.6 35.6 36.1 56.7 36.9 37.( 37.0 37.0 38.0GE 120001 15.9 23.3 26.3 30.9 33.5 34.1 34.6 36.3 36.3 36.9 37.4 37.6 37.8 37.8 37.8 38.7

GE 100001 17.0 26.3 29.8 34.b 3.7.2 38.0 38.7 40.4 40.6 41.3 41.9 42.0 42.2 42.2 42.2 43.3GE 900 17.2 27.0 33.7 35 6 38 38A9 39.6 41.3 4i.5 42.2 42.8 43.0 43 1 4 3. 4 44 3

GE 80001 18.0 28.5 32.4 37.4 40.2 40.9 41.7 43.3 43.5 44.3 44.8 45.0 45.2 45.2 45.2 46.3bE 7(3001 18.1 28.9 32.8 37.8 40.6 41.3 42.0 43:1 43.9 44.6 45.2 45.4 45.6 45.6 45.6 46.7GE 6000 18.1 28.9 32.8 38.

0 40.9 41.7 42.4 44.1 44 3 45.0 45.6 45.7 45.9 45.9 45.9 47.0

GE SCOOt 19.1 31.3 35.4 40.7 43.9 44.8 45.6 47.4 47.6 48.3 48.9 49.1 49.3 49.3 49.3 50.4GE 45001 20.2 33.3 37.4 43.1 46.3 47.4 48.1 50.0 50.2 50.9 51.5 51.7 51.9 51.9 51.9 53.0GE 40001 23.1 38.7 43.1 49.3 52.4 53.7 54.4 56.7 56.9 57.6 58.1 58.5 SB.7 58.7 58.7 59.8GE 35001 25.0 42.8 47.2 53.3 57.0 58.3 59.1 61.3 61.5 62.2 62.8 63.1 63.3 63.3 63.3 64.4GE 30001 25.7 45.4 49.8 56.3 60.2 61.7 62.6 64.8 65.0 65.7 66.3 66.7 66.9 66.9 66.9 68.0

GE 25U01 27.0 48.9 53.9 60.7 64.8 66.3 67.2 69.6 69.8 70.6 71.1 71.5 71.7 71.7 71.7 72.8GE 20001 28.0 50.2 55.4 62.6 66.9 68.3 69.3 72.0 72.2 73.0 73.7 74.1 74.3 74.3 74.3 75.4UE 18001 29.6 S2.4 58.0 65.4 b9.b 71.1 72.0 75.0 75.2 75.9 76.7 77.0 77.2 77.2 77.2 78.3GE 15001 30.2 54.4 63.4 68.3 72.6 74.1 75.0 78.0 78.1 78.9 79.6 80.0 80.2 80.2 b0.2 81.3

GE 12001 30.4 55.9 62.0 70.7 75.2 77.0 78.1 81.1 81.5 82.4 83.1 83.5 83.7 83.7 83.7 84.8

GE 10001 30.4 56.1 62.2 71.7 76.1 78.0 79.1 82.4 82.8 83.7 84.4 85.0 85.2 85.2 85.2 86.3GE 9001 3r.4 56.3 62.4 72.2 76.9 78.7 80.0 83.7 84.3 R5.4 86.1 86.7 86.9 86.9 86.9 S8.0GE 8001 30.4 56.3 62.8 73.5 78.7 80.7 82.2 85.9 86.7 88.0 8;.9 89.4 89.6 89.6 89.6 90.7bE 7001 30.4 56.3 62.8 73.9 79.b 81.9 83.3 87.8 88.5 FT.8 90.9 91.S 91.7 91.7 91.7 92.8GE 6001 30.4 56.3 63.3 74.1 80.? 82.4 83.9 68.3 89.1 90.b 91.9 92.4 92.6 92.b 92.6 93.7

GE SO0 30.4 56.3 63.0 74.6 80.7 83.3 84.6 89.1 90.2 92.0 93.3 94.3 94.6 94.8 94.8 95.9

GE 4001 30.4 S6.3 63.0 74.b 80.7 83.1 84.6 89.1 90.4 92.6 93.9 94.8 95.6 95.7 95.7 96.9GE 3001 30.4 56.3 63.0 74.6 80.7 83.1 84.8 89.3 90.7 93.1 94.6 95.7 96.5 96.7 96.7 97.8GE 2001 30.4 56.3 63.0 74.b 80.7 83.1 84.8 89.3 90.7 93.1 94.6 95.7 96.5 96.9 96.9 98.36E 1001 30.4 56.3 63.0 74.6 80.7 83.1 84.8 89.3 90.7 93.1 94.6 95.7 96.5 96.9 96.9 99.8

bE 01 30.4 56.3 63.0 74.6 80.7 43.1 84.8 89.3 90.7 93.1 94.6 95.7 9g.5 96.9 96.9 100.0

TOTAL NUMREq OF OBSERVATIONS: 540

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPENC.E OF CEILING VERSUS VISIBILITY

uSAFETAC FROM HOURLY OISFRVATIONS


STATION NUMBER: 063250 STATION NAME: ZIERIKZEE NL PEPOO OF RECORO: 77,79-84.86MONTH: NOW HOURSILST): 0900-1100


IN I GE GE GE GE GE GE GE GE GE GE rL GE GE GE GE GEFEET I 10 6 5 t 4 2 112 2 1 12 1 1/4 1 3/4 S/8 1/2 5/16 1/4 0

NO CEIL I 13.1 17.8 17.8 19.5 21.4 21.8 22.0 23.9 24.3 24.9 25.1 25.1 25-1 25.1 25.1 25.3

GE 200001 16.8 23.2 23.7 26.6 29.5 30.3 30.5 32.6 33.2 34.0 34.2 34.2 34.2 34.2 34.2 34.4GE 18000i 16.8 23.4 23.9 26.8 29.7 30.5 30.7 32.8 33.4 34.2 34.4 34.4 34.4 34.4 34.4 34.6

GE 160001 16.8 23.4 23.9 26.8 29.7 30.5 30.7 32.8 33.4 34-2 34.4 34.4 34.4 34.4 34.4 34.6

GE 140001 16.8 23.4 23.9 26.8 29.7 30.5 30.7 32.8 33.4 34.4 30.6 34.6 34.6 34.6 34.6 34.9GE 12n001 16.9 ,3.9 24.5 27.4 30.7 31.7 32.0 34.

0 34.6 35.7 3',.9 35.9 35.9 35.9 35.9 36.1

GE 100001 19.7 28.8 29.7 33.0 37.1 38.2 38.4 40.5 41.1 12.3 42.5 42.5 42.5 42.5 4Z.5 42.7GE 90901 21.2 31.1 32.2 35.1 39.% 40.9 41.1 43.6 49.2 45.6 4 .9 45.9 45.9 45.9 45.9 46.1UE 8C01 21.4 32.4 33.6 37.1 41.3 42.3 42.5 45.2 46.1 47.5 47.7 47.7 47.7 47.7 47.7 47.9GE 70001 21.6 33.8 35.I 38.6 42.7 43.8 944. 46.7 47.5 49.0 40.2 99.2 49.2 49.2 44.2 49.4GE 60001 21.6 34.0 35.5 39.2 43.4 44.4 44.6 47.5 48.3 49.8 5P.0 S0.0 50.0 50.0 50.0 50.2

GE 50001 23.4 36.1 37.6 41.5 45.6 46.9 97.1 50.0 50.8 52.3 57.5 52.5 52.5 S2.5 52.5 S2.7GE 45001 24.1 37.6 39.0 43.2 47.5 48.8 49.0 52.5 53.5 55.0 55.2 55.2 55.2 55.2 5S.2 55.4GE 40001 26.8 41.7 43.6 47.7 52.1 53.7 53.9 57.5 58.5 60.2 60.4 60.4 60.4 60.4 60.4 60.8GE 35001 28.2 45.0 47.1 51.7 56.4 58.1 58.5 62.0 63.1 64.7 64.9 64.9 64.9 64.9 64.9 65.4

GE 3V01 29.7 48.3 53.4 55.8 60.6 62.2 62.9 66.6 67.6 69.3 69.5 69.5 69.5 69.5 69.5 69.9

G 25001 31.3 51.9 54.4 60.4 65.1 66.8 67.4 71.2 72.2 74.1 74.3 74.3 74.3 74.3 74.3 74.7GE 20001 32.6 53.9 56.8 63.1 67.9 69.5 70.1 73.9 74.9 77.O 77.2 71.2 77.2 77.2 77.2 77.6GE 18001 33.8 S5.8 59.7 64.9 69.7 71.4 72.2 75.9 17.0 79.0 79.3 79.3 79.3 79.3 79.3 79.7GE 15001 34.2 56.6 59.5 6$.0 71.0 72.6 73.4 77.2 78.4 80.7 8C.9 80.9 80.9 80.9 80.9 81.3GE 1201 35.5 58.7 62.2 69.1 74.1 75.7 76.6 80.3 a1.S 93.8 84.0 84.0 84.0 84.0 84.0 A4.4

GE 10001 35.5 59.1 62.7 69.7 74.9 76.8 77.6 81.3 82.6 85.1 85.3 85.5 85.5 95.5 85.5 85.9GE 9001 35.5 59.1 62.9 70.1 75.3 77.4 78.2 82.0 83.4 86.1 86.7 86.9 86.9 86.9 8F.9 87.3GE 8001 35.7 59.5 63.5 71.0 76.1 78.4 79.3 83.0 84.6 87.8 88.4 88.6 88.6 88.6 88.6 89.0

GE 7001 35.7 59.8 64.1 71.8 77.6 79.9 80.7 84.4 86.3 90.0 gr.7 93.1 93.1 91.1 93.1 91.5GE 6001 35.7 59.8 64.1 71.8 77.8 80.1 83.1 85.1 87.1 91.1 91.9 92,5 92.9 92.9 92.9 93.4

GE 500i 35.7 60.0 64.3 72.0 78.0 80.3 81.5 85.5 87.6 91.7 97.7 93.6 94.2 94.4 94.4 94.8GE 4U01 35.7 60.0 64.3 72.0 78.6 80.9 82.2 86.3 88.4 92.7 93.q 94.8 95.9 96.1 96.1 96.5GE 3001 35.7 60.0 64.3 72.0 78.6 80.9 82.2 86.3 88.4 92.9 94.6 95.6 96.9 97.5 97.5 98.1GE 2001 35.7 60.0 64.3 72.0 78.6 80.9 82.2 86.3 88.4 92.9 94.6 95.6 96.9 97.! 97.5 98.3GE 1001 35.7 60.0 69.3 72.0 78.6 80.9 82.2 86.3 88.4 92.9 94.8 95.9 97.1 97.7 97.7 99.4

GE of 35.7 60.0 64.3 72.0 78.6 80.9 82.2 86.3 88.4 92.9 94.8 95.9 97.1 97.7 97.7 100.0


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FR-QUENCY OF OCCURPENCE OF CFILING VERSUS VISIBILITYUSAFEI AC FROM HOUQLy OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- ML PERIOD OF RECORD: 77.79-86MoNTH: NOV HOURSILSTI: 1200-1400

CEILING VISIBILITY IN STATUTE MILESIN I GE GE 5E GE GE Gr GE GE GE GE IL GE GE GE GE GE

FEET I 10 b 5 3 2 112 2 1 112 1 1/4 1 3/8 5/8 112 S/16 1/4 0

NO CElL 1 14.3 19.9 23.8 22.8 24.7 25. 0 25.6 27.3 28.0 28.0 28.0 2.0 28.0 28.0 2A.0 26 .u

GE 200001 18.5 25.9 2N.3 30.9 3 37.6 17.6 37.6 37.6 37.6 37.6 37.6 :7,6GE 16100 1 .7 26.3 2q.9 31.2 32.6 38.6 35.3 37.2 37.9 37.9 37. 37.9 37.9 37.9 37.9 77.6GE 160001 18.7 26.3 28.9 31,2 32.6 39.6 35.3 37.2 37.9 37.9 37.9 37.9 37.9 37.9 37.9 37.9GE 140001 18.7 26.5 29.6 31.4 32.8 38.7 35.9 37.8 38.1 38.1 38.1 38.1 38.1 38.1 38.1 36.1GE 120001 19.8 28.0 33.5 33.3 34.7 36.7 37.6 39.5 90.2 %a.2 40.? 80.2 80.2 80.2 40.2 40.2

GE 100001 19.9 30.5 33.0 35.8 37.6 39.5 90.8 82.3 83.0 83.0 93.1 83.0 83.0 83.3 83.0 83.bE 90001 21.0 32.6 35.3 38.1 39.9 91.8 82.7 85.1 85.9 85.9 89.9 8S.9 8S.9 85.9 86.0 8b.0GE 80001 21.7 38.9 31.9 80.9 42.9 9.6 85.9 98.5 99.2 89.9 4q.% 89.9 89.8 99.8 49.6 89.b

GE 70001 22.0 35.9 38.9 91.6 83.b 95.5 86.6 9.Z 89.9 53.1 90.1 S0.1 50.1 SO.1 50.3 50.3GE 60001 22.6 36.0 39.2 92.5 88.9 96.8 817.8 50.1 50.8 -1.0 51 . 51.0 51.0 51.0 51.1 51.1

GE 50001 23.3 37.6 83.7 45.0 47.1 89.0 50.3 53.3 58.0 58.7 Sl.7 S.7 58.7 58.7 S4.9 54.9GE 45001 28.3 39.7 92.9 97.3 99.8 51.3 52.6 56.1 56.8 57.5 57.7 S7.7 57.7 7.7 57.8 S7.8GE 4o oj 26.6 82.7 85.9 50.8 52.7 '8.9 S6.8 60.1 61.0 61.7 62.3 62.3 62.3 62.3 62.8 62.8GE 35001 27.9 85.1 88.3 53.3 55.6 57.7 59.3 63.0 b3.8 68.6 6S.1 6S.1 65.1 65.1 85.3 6S.3GE 30001 30.0 88.9 52.9 58.7 61.0 63.3 65.1 69.3 10.5 71.3 71.9 71.8 71.8 71.8 72.0 72.0

GE 25001 31.0 51.1 55.7 61.7 69.0 66.5 68.3 72.5 73.7 78.8 79. 75.0 75.0 75.0 7S.1 7S.iGE 21001 32.3 52.7 57.5 61.0 67.0 69.5 71.3 7S.5 76.7 77.8 78.3 78.3 78.3 78.3 78.5 70.S

GE 18001 33.7 55.0 59.8 66.3 69.3 71.8 73.5 78.1 19.8 A0.9 81.0 81.1 81.1 81.1 81.3 81.3bE 15001 39.6 57.5 67.3 69.3 72.5 ?S. 0 76.7 81.8 83.1 88.7 85.2 85.8 85.8 8S.8 85.S 8S.SGE 12001 35.1 58.9 63.7 70.9 78.8 76.9 78.7 83.8 85.0 A6.6 87.1 87.3 87.3 87.3 87.5 87.5

GE 10001 35.1 58.9 63.7 70.9 78.9 77.1 78.8 8.1 85.5 87.1 87.7 88.0 88.0 88.0 88.2 n8.2bE 9001 35.1 58.9 63.7 70.9 78.6 77.8 79.2 88.7 86.1 87.8 88.S 88.9 88.9 88.9 89.1 89.1LE 8001 35.3 59.3 64.0 71.3 75.5 78.8 80.6 86.6 88.2 89.9 90.7 91.0 91.0 91.0 91.2 91.2GE 7001 3S.3 59.9 64 . 71.8 76.4 79.9 82.0 88.2 89.8 91.9 9Z.8 93.1 93.1 03.3 93.5 93.5GE 6001 35.3 S9.4 68.4 72.0 76.5 R0.1 82.2 88.9 90.5 92.6 91.5 93.8 93.8 98.0 98.2 98.2

GE '001 35.3 59.4 69.9 72.0 76.7 80.8 82.5 89.8 91.5 98.0 9S.8 96.1 96.1 96.3 96.5 96.6GE 9001 35.3 59.8 64.8 72.0 76.7 80.8 82.7 89.9 91.9 98.4 95.8 96.8 97.2 97.8 97.6 97.7GE 3001 35.3 59.4 69.8 72.0 76.7 80.6 82.9 90.1 92.1 98.5 96.1 97.9 97.9 98.8 98.6 98.8GE 2001 35.3 S9.4 68.4 72.0 76.7 80.6 82.9 90.1 92.1 98.5 96.1 97.8 97.9 98.8 90.6 98.9GE 1001 3S.3 59.8 68.8 72.0 76.7 80.6 82.9 90.1 92.1 q9.5 96.1 97.8 97.9 98.8 98.6 100.0

bE O 35.3 59.8 69.4 72.0 76.7 80.6 82.9 90.1 92.1 99.5 96.1 97.1 97.9 98.8 98.6 100.0

..............................................................................................................


GLOAL CLIMATOLOGY B8NCM P[RC8 t IaGE rRQUE4C OF OCCURRLNEE OF CEILING V17Sus VISIILITYUSAFEtAC FROM HOURLY OBSERVATIONS

AIR wEATHE SFRVICL/MAC

STATON NUMBER: 0,32C ST ATIn MAN[: ZIRI ZE N. PEIOD Or

R[CORD: 1179-94.86mn03H: NOV HOURSILSTI: 1500-1700

il . .... ... .... .... ... .... ... .... .... ... ... ::..............:: :::............................................

CE~lNG VS163113'iu rArUTr KILLSM9 I G. E 1.E aF [ E G GE GE GE GE 0L G Gt GE G [F

F7EET I 0 t i 2 z1 112 1 3/ 1/ 3 1 s 'a6 16 2~ 6/316 1 / "..° ... .. °.. .°. .'°..°.. ... .. '..-.. ... ... .. .°. .'. .'...°.. ........ .,. .0... .,. .,. ..... . .... o..

NO CEIL 1 16.A 23.3 2S.2 26.z2 ,a. .8.2 29.2 31.0 31.8 12.7 37.7 3?.7 32.7 12.7 32.7 %i.9

(f 230003 20.9 .8.8 31.8 33.5 3.0 36.3 37.5 39.6 90.6 41. 4 92.9 91.9 1.9 19.9 91.6 41.bGE 180001 10.9 78. 1 SI.0 33.! 3s.1 16.S 51.7 39.8 90.8 93.6 4|.b 61.6 91.6 .3.6 4b .6 91.6

.E 160001 20.9 28.8 31. 33.5 35.1 36.5 31.1 39.6 90.8 91.6 41.6 91.6 91.6 61.6 61.6 %1.0fi 10001 23.9 28.8 33.9 33.5 35.3 36.5 31.? 39.6 60.8 61.6 93.6 1.b 61.6 1.6 q .6 1.ab( 12Oo 1 21.5 S0.2 317 35.3 36.9 38.3 39.6 6. 6 62.6 %3.0 93.% 43.6 %3.9 3. 3. 43.8

G. IOG 2 3. 3 33.s b6.9 36.1 0.b 9Z.0 63.2 -I.% %6.1 97. 4?*S q,5 9 97. - 7.5 61.S 61.?GE 90001 23.s 39.6 31.9 0.U 92.2 66.0 45.2 17.5 8.9 69.7 49.7 89. 7 69.1 9.7 69.9

GE 60001 26.3 !b.5 93.2 92.6 69.8 96.5 67.7 99.9 61.5 52.3 s2. 5 52. 62.6 %2.6 62.5 S2.1bE 7001 29.s 6.9 1.6 93.2 96.6 91.6 98.1 50.9 52.6 53.3 "3.S 53.5 53.5 65.5 53.5 3.8

(,f 6nu0 1 29.6 36.9 61.6 63.2 45.1 61.5 8.1 $0.9 52-S %3.3 53.5 3. 6S3.5 53.6 53.S 3.8

G 5000I 26.2 39.4 63.6 96.5 8.9 60.9 52.S 59.8 66.6 61.6 5* .9 56.3 58.0 %8.0 SB.0 SB.ZGE 65001 ,8.% 62.0 6-7 99.7 62.5 5.6 56.0 68.2 60.1 61.1 61.7 63.7 61.7 61.7 bi.1 61.9GE 90001 3?. 3 17.3 51.9 55.0 57.6 59.8 61.5 66.1 66.9 66.9 61.6 61.5 b.6 61. 67.6 bI.

G 300I . 5136 1 13 6. 59.0 61.1 63.9 b5.5 66.2 10.0 11.0 13.6 71.6 71.6 71.6 71.6 71.8GE 3Wo0l 5. ? 51.1 66.0 61.1 63.P 65.9 67.5 70. 72.6 73.6 76.2 7.2 76.? 79.2 16.2 74.4

bE 25001 36.3 c%.a 6).Z 63.1 66.3 68.6 10.9 73.2 15.1 1.9 7.11.6 7.5 77.5 17.6 17.5 11.?GE 2001 36.9 S6.4 6?.1 65.7 68.6 71.0 72.6 15.9 16.3 19.6 8L.1 80.1 80.1 80.1 80.1 90.3GE 18001 317.9 57.L 63.5 67.1 70.0 12.9 71 ? 77.3 19.1 80.9 83.% 61.S 8.5 91.5 81.6 61.7U. I3i0| 13.9 S9.% b5.5 69.2 12.- 16 6 16.9 63.1 62.b 96.0 69.6 66.b 69.6 99.b 896 99.8.. 12001 90.6 61. 3 67.5 1.1b 79.6 71.3 19.5 62.6 85.2 96.6 8.9 87.4 67.9 81.9 67.6 9?.6

bE 100)1 60.6 61.3 67.5 71.8 75.1 17.7 79.9 83.2 65.8 8.% 8.2 69.2 66.Z 8.2 88.2 p8..

bE 9003 60.8 61.7 6.1 72.2 7s.s 76.1 80.3 83.6 86.6 P8.0 89.8 88.8 68.6 98.6 68.8 69.i,6 800 90.R 62.9 6%.9 72.6 76.! 78.9 611 8.4 61.9 89.6 90.5 90.6 90.6 90.s 9,.5 9U1

(. 700l 90.8 61. 6q.9 72.8 76.0 79.7 6.2 65.6 686. 90.7 92.1 9".1 92.3 92.3 9z.3 9.3bE bU0 40.8 62.3 69.0 73.8 17.9 80.1 83.6 86.6 9'.1 92.3 9'.9 93.9 92.9 93.9 91.9 96.J

GE SU I 60.6 62.3 61.3 73. 11*9 0.9 69.2 81.8 93.3 99.7 96.6 96.6 96.9 91,2 91.7 91.6

Uo L5jl 9 0.9 62.3 69.0 73.8 77.1 F0.9 19.6 68.2 V2.3 95.? 97.6 97.8 91.8 96.2 98.2 96.%LE luo0 60.A 6z.3 69.

U 73.6 71.9 80.9 86.6 88.2 92.3 95.1 97.8 98.0 98.2 96.8 9M.8 99.2

(A 2003 90.8 62.3 6.o 13.6 11.6 P0.9 66.6 68.2 92.1 96.1 97.6 98.2 98.8 99.9 99.4 99.8

GE I301 0.8P 62,S 69.0 73. 71 1, 60.9 86.6 8.2 92.1 9s.1 91.9 08.2 96.8 99.% 99., IO.

GF I 1 60.8 62.3 b6. 73.8 17.9 80.9 86.6 68.2 92.3 9S.7 97.9 96.2 98.8 99.6 99.9 100.0

TOTAL NUN9(60 ORSE7VAIONS: 49

GL09*1 C11P6610L01. RRAP9CM P!6CEN7Ab7 FR300IIICY Of OCCU66E6Cf OF 1fI191 wfR3'u3 V161611137uArt3 Fc ROM HOUQLY Of&StRVAIIOIAIR WAlINER SERVICEIMA"C

51411109 POUN916: 06 1260 3.*33* AT %"[: lit1/C RI ':1L r1t0,0 9 ot O 090 ap: 71. 19-86606164: N0W HOURI.9L16l: IROM-2300

(I II 1311IS1611111v IN STATUTE will£16 I r.L 61 611 G.E G, L 1 61 61 G6 f. 61 t G 63 ,1

FEET I in 6 S 9 1 .12 2f 112 11/4 1 X/9 Oil* I.? 6/Ib 1/9 Q

N0 CLII I1 16.9 .1S.6 Z.3..' ?b.7I ?A.P W.,*6 31 .11 2.6 12 .6 'S.3 1'. 3 , 11 IS-I I.-, R3.-, S 3. 7 '

I't 200(101 19.9 1. 09.N 31 .2 S3. S16.7I 36 .6 It.& 371.8 Is9.f, 19 .T 36 .7I Is. ? 16.7I 3Q9 1.,16,001 16. 2.9 19.7 1.9 3 1.7 is'.9 16.6 36.1 153.0 ' .71 39.1. 19.9 is .9 38.9 739. I .IA broo UO .9 1'. 9.7 31 .9 13.7 F 6. 9 16.6 39.0 16.0 19.37 3 93 3. 9 36.9 'G69 39.1 3

.I I %nor 16£.9 21.9 21.7 31 . 1 3.7r q6.9 16.8 15.0 16 .0 Is . T 36.9 114.9 39.9 31.9 3q.1 '9.3%t. Ilt rfl I d. 9 16 .6b S 11 3. 1 19.9 1b.6b 37.S Is. I SIt.7I 39.s 3 ;.' , '9 .6 39 .6 b 9.6 19.6 4-. 0

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.LOGAL CLIMAIOLOGY PRANCH PEcCENT Ar-f FR-QUENCY oF OCCJRPCNL( OF Cf7II'iG VrRSUS V1'1ILI11USAF[ IAC FROM HOURLY 0BSERVATIS0NAIR WtAT14FR !.RVILI/MkE

STTI06 NUMPLR: 0632S1 %I 1 I O. NAME41: ZI(.R1'I[l NL P(P10I OF PECORD: 71-66Mfhl"lH: DEC HOURSILST): O6UD-08O

L(ILItNG VISIBILITY IN STATUTE 141LI$IN 23 01 51 G1 G - G GE GE GE 1t G1 GL GE GL LE

FE ET le .1 0. 1. 1 112 7 1 I z 1 1 41 1 'i4 i1e

6l3 0 11 a/3 (

...(......* . ..* . 6 6 2312.... .. .** .6.. o. 3... * .... , o1..... 6..... ..... ..... 6..... . ........... ,..

NO CIIL I 12.7 :U.1 V .1 ?5.2 2.' 2a. 7 Z8.1 30.2 3,? z0. .3. f 30.6 3.6 30.6 30.6 1J.b

(,[ 200O0 I 13.6 21 .6 2.3 21.6 33. s 1.3 31.3 32.8 33.0 13.L 7'.? 13.I s.? 13.9 73.9 13.9. coo01 31.6 21.6 2V. 21.6 30.6 3.3 31.3 32.6 33.0 73.0 33.1 33.1 33.7 33.9 3.9 '3.9

c. ( 3Ie 3. . ; 16 30.6 31.3 31.3 32.6 13.0 3.1 U 7 33. 33.1 3.9 3.9 33.9% r u01 17. 1 .6 1.:8 2 7.6 30. 333 33.7 , 21 32.: 3.

3.1 '.? 33.1 33.7 '3.9 33.9 3 9~, ~01l136 211 2. 7. 3. 20 32.0 33. 3 3.1 33. 3N. 39. 36. 36 36. 6 3%6.6

61 1OF) 00 1.6 26.2 11.6 31.1 !S.' 36.1 36.7 31.2 37.6 37.6 38.1 38.1 38.1 '8.3 36.3 !.3.'( "1U1 36.6 2.N.4 29.. '2.0 3x.2 16.1 36.3 37.6 1.8 '1.8 s8.6 38.6 36.5 38.7 36.1 5b.16F e001 1,1.7 ?6.5 2.1 Si. 36.1 7.6 31.6 39.0 39.2 19.; 4 ol 60.0 60.0 40.1 47.1 4D.

t3 TrioJ 16 .1 26.1 29. 3,.9 37.6 38.5 38.6 60.0 40.1 63.3 60.9 40.9 67.9 63.1 63.3 63.3I( 60) or) .1 .21.1 3.z 364.6 3q.6 59.6 S9,6 60.9 61.1 63.3 93-8 61.8 61.9 '. 62.0 12.0

(. 6 I001 36., .6.9 32.3 36.8 40. 44.8 61.6 63.6 63.8 43.8 4-1 66.6 4%b .6 66. 9 44.9 661. 9.f ' (1 . 57 3 ) 3. U 31.' 38.3 42.4 43.3 63.3 45.1 66. 3 66.3 4 6 . 1 %6.0 -86.1 66.6 96.6 66.46 t svOC I 1.6 36.3 3-.3 46.0 60. 49.6 49.61 61.2 5. 1. S2.1 52.1 6Z. 52.5 52.5 6,.5(I, " i' ) 1i.. I3.U 63.3I OF.3 63.9 112. s S'.7 4.5 56.7 s%.1 .4 5.4 5.6 65.8 66.8 '5.81. S030 d 13.0 1%.9 66.9 63.2 55.6 616.1 66.9 68.1 58.9 . 9 -9.7 %9.7 69.7 60.0 60.0 bj.3

"1 21 33 I1.9 :.:6 61 66l 5 69.3 61.2 60.6 626 63. 63.0 '.? 33.1 61'7 64.3 66 .1 641,

"I l'." 27.6 66.6 6 ,6 56. 60.. 6z2. 62.8 66.0 6.5 66.64 66.1 66.3 6653 66.1 66.1 66.1.7 1861 12.8 86.9 . 68.0 63.6 66.0 65.9 6.3 68.1 66.9 69.6 69.8 69.8 73-. In.? 7L.2

"1 I 0fI 1.8 -6.6 .1 6.3 6.'. 69. z I0.2 726 13.3 7.6 74.? y6.% 76.6 76.8 71.8 16 .1$:.3 I17 3 I 3.a %[;.1 66 .6 65.2 70. 172.6 7.S 76.1 76.6 17.0 77.7 77.9 77.9 78.5 18.6 78.S

61 1' 6 1 2.9 .S. % ,5. 1 6 .137..s 7 41 11.3 n 18. 71o).6 197 79.?r9 9 7 6.6 A 0.5 O ,567 9 or, 2"3.9 1.r 57.3 66.9 73.' 7t 3 16.2 19.2 19.9 80.6 63.6 83.8 61.8 82. 3 8.3 02.33.1 Pol 23.9 63.6, 6 5.. 68.0 16.,. l17, 78.6 83.6 8l2.6 P1.2 64.5 86.1 86.1 86,. 86.3 66.36r 31:0 939 S2,3 5.9 69.Z 76.3 79 ,2 0 8.1 86.0 87.3 81.7 87.1 68.% I8.2 66.2

3f 6Un1 23.9 2 . 3 6!.. 69.2 76.q 19.9 81.7 . 86.6 81.1 89.1 A9.3 9. 913.8 60.1 90.1

G. I 30 23. 9 62.3 69. 69. 11. S0. 82. 1 61 8. 96 9. 3. 21 9. 26(.31 61| 23.9 52.3 5.S 696 11.3 631.1 *2.7 81.3 88.6 90. 92.6 9|,o 9:.1 96.8 96.6 95.0(1[ 3371 23.9R 62'.7 69.9 69.6 11.6 63..8( 82.9 81.3 86.8 91.2 9',1 93.1 98.1 96.1 96.3 96.3

' 7UO1 23.9 '2,3 68.9 69.6 17. 80.8 82.9 81.3 88.8 93.3 99.8 9.3 96.2 97 61.6 98.16F 1001 z3.9 62.1 56.9 69.6 77.6 60.8 82.9 87. 3 88.8 91.1 91.4 94.3 95.6 97.8 97.8 300.0

6F I 23.9 51.3 58.7 69.6 7,9 .0. . 82.9 87.3 88.8 91.3 93.64 9.3 95.6 97.8 97.8 100.0

10 1 L W"UMi A Of U-S( R V'AItI| NS 541]

306 6681708(6125 6

GLOBAL CLIMAIOLOGY BRANCH PERCENTaGE FR(QUENCY OF OCCURRENCE OF CEILING vOASUS VISIBILITY


AIR WEAT14ER SERVICE/MAC

STATION NUMBER: 063250 STATIM NAME: ZPRIK7E-. NL PEPIOU OF RECORD: 77-84,86MONTH: DEC HOURSILSTI: 09Un-1100

IN I 21 GE 5E GE GE G: GE GE GE GE rL GI GE GE GL GEFEET | 10 6 5 4 2 12 2 2 1 lt? 1 1/4 1 /4 3/8 112 5/16 I/4 0

NO CE IL I 9.9 15.7 16.4 16.8 19.1 2u.3 20.5 22.2 22.9 23.1 23. 23.5 23.5 23.5 23.5 23.5

uE 200001 10.7 18.9 20.3 22.2 24.1 26.0 26.4 28.7 i9.6 29.8 30.0 30.2 30.2 30.2 30.2 30.2fE I80UO I 10.7 19.1 23.5 22.4 25.2 26.4 26.8 29. 1 30.0 30.2 30.4 30.6 30.6 30.6 30.6 30.6GF 160001 10.7 19.1 23.5 22.4 Z5.2 26.4 26.8 29.1 30.0 30.2 30.4 30.6 30.6 30.6 30.6 '0.6GE 140001 IC.7 19.1 23.5 22.4 25.4 26.6 21.0 29.4 30.2 30.4 30.6 30.8 33.8 30.8 30.8 30.86E 120001 11.1 19.9 21.4 23.5 26.4 27.7 28.1 30.4 11.2 31.4 31.7 31.9 31.9 31.9 31.9 31.9

GE 100001 11.7 22.6 24.3 26.8 29.8 31.0 31.4 34.2 35.0 15.2 35.4 35.8 35.8 35.8 35.8 35.8bE 90001 12.2 23.1 24.7 27.5 30.4 31.9 32.3 35.0 35.8 36.1 36.3 36.7 36.7 16.7 36.7 36.7GE 80001 12.6 24.7 26.-9 30.2 33.1 34.8 35.4 38.4 39.2 39.4 39.6 40.0 40.0 40.0 40.0 40.0GE 71001 12.8 24.9 27.0 30.4 33.5 35.2 35.8 38.8 39.8 40.0 40.3 40.7 40.7 40.7 40.7 40.7bE 6O01 12.8 2 .4 27.5 31.0 34.2 35.8 36.5 39.4 40.7 40.9 41.1 41.5 41.5 41.5 41.5 41.5

GE 50001 13.2 26.2 23.3 32.7 36.7 36.4 39.0 41.9 43.2 43.4 43.6 44. 44.0 44 .3 44.0 44.4GE 4500 14.3 27.5 29.6 34.0 38.4 40.0 40.9 44.0 45.3 45.5 45.7 46.3 46.3 46.3 46.3 46.3GE 40001 16.6 30.8 33.1 37.9 42.3 44.0 44.9 48.6 49.9 50.1 5o.3 S0.9 53.9 s0.9 50.9 50.9GE 3sc01 1R.9 33.3 35.6 40.7 45.3 47.0 47.8 51-0 53.0 53.2 53.5 54.1 54.1 54.1 54.1 54.1GE 30001 21.0 36.9 37.2 44.9 49.7 51.6 52.4 56.8 58.1 58.3 Sp5. 59.1 59.1 59.1 59.1 59.1

bE 2SO01 21.4 37.7 4J.9 47.0 52.0 53.9 54.7 59.3 60.6 60.8 61.0 61.8 61.8 61.8 61.8 61.8GE 2noo0 22.2 40.3 41.4 49.7 55.1 57.0 57.9 62.5 63.7 63.9 64.2 65.0 65.2 65.2 65.2 65.2bE 1RUOI 22.9 41.7 64.9 1.2 57.0 58.9 60.0 64.6 66.2 66.9 b7.1 67.9 68.3 68.3 69.3 68.3GE 1500s 4.7 43.8 47. 55.3 61.R 63.7 64.8 70.4 72.1 72.7 73.0 73.8 74.2 74.2 74.2 74.2GE 12001 26.6 46.3 49.9 59.3 66." 67.9 69.2 75.1 77.4 78.2 79.4 9 79.7 79.7 79.7 79.7

GE 100 26.6 46.5 53.1 60.0 66.7 68.6 69.5 75.9 78.4 79.7 79.9 S9.7 81.1 81.1 81.1 81.1GE 9Cnj 26.6 46.5 53.1 60.0 66.9 68.8 70.0 76.3 79.0 90.5 80.7 81.8 82.2 82.4 82.4 82.4lE 801 26.6 47.2 53.9 61.2 6R.3 70.4 72.3 78.8 81.6 33.2 93.9 85.1 85.5 85.7 8.7 85.7"E 7001 26.6 97.6 51.8 62.5 69.6 71.7 73.6 80.5 83.4 95.1 85.7 87.2 47.6 87.8 87.8 97.8

UE 6101 26-6 47.6 51.8 62.7 69.0 12.1 74.0 81.1 84.5 86.4 87.4 88.9 89.3 89.5 89.5 89.5

LE 001 i6.6 41.6 51.8 62.7 70.7 7 .5 74.6 82.0 85.3 87.8 89.1 91.0 92.2 92.7 92.7 92.9GE 41, 1 26.6 47.6 51.8 62.7 70.2 72.5 74.6 82.2 85.5 88.7 90.8 93.3 99.8 95.4 95.4 95.6GE 3O00 26.6 87.6 51.8 62.7 70.2 72.5 74.6 82.2 85.5 88.7 90-, 93.5 95.2 96.0 96.0 96.2GE 2001 26.6 47.6 51.9 62.7 70.2 72.5 74.b 82.2 85.5 88.7 9P.8 93.5 95.4 96.9 97.1 99.4GE 101 26.6 47.6 51.d 62.7 70., 72.5 74.6 82.2 85.5 88.7 90.9 93.7 95.6 Q7.I 9T.S 100.0

GE 01 26.6 41.6 sI1d 62.1 70.2 72.5 74.6 82.2 85.5 98,7 90.R 93.7 95.6 97.1 97.5 100.0

TOTAL NUmRER f OSERVAT13N5: 477

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FFRQUENCY OF OCCURRENCE OF CEILI4G VERSUS VISIBILITYuSAFETAC FROM HOURLY OBSERVATIONSAIR wEATHER sERvICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIK7E NL PERIOD OF RECORD: 77,79-86

MONTH: OEC HOURS(LSTI: 12C0-1400


IN GE GE GE GE GE GO GE Gf GE E E GE G G L E GE GEFEET Ia 6 5 4 3 2 I12 2 1 1/2 I 1/4 I 3/4 . /8 1/2 1/16 1/4 0.. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . ..-. .............................................°..-... ....

NO CEIL 12.C 18.6 23.3 21.9 24.0 24.2 24.7 26.8 26.8 27.1 27.5 77.7 27.7 27.7 27.7 27.7

GE 20000 13.6 22.6 25.U 28.U 31.5 32. 0 32.9 35.5 35.5 36.0 36 . 7 36.9 36.9 36.9 36.9 36.9FE 180001 13.6 22.6 25.3 28.0 31.5 32.0 32.9 35.5 35.5 36.0 36.7 3(..9 36.9 36.9 36.9 !6.9GE 160001 13.6 22.6 25.0 2s.a 31.S 2.0 32.9 35.5 35.5 36.0 36.7 36.9 36.9 36.9 36.9 36.9GE 140001 13.6 22.8 25.2 28.2 31. 7 32.2 33.0 35.7 35.7 36.2 36.9 37.0 37.n 317.0 37.0 37.0GE 12C01 14.3 23.5 25.1 29.2 32.7 33.2 314.3 36.9 36.9 17.4 IF.1 38.3 38.1 S 8. 31A.3 38.5

GE 10000 15.1 25.4 28.3 31.8 36.1 36.7 37.9 40.7 40.7 q1.2 47.1 42.3 42.3 42.3 42.3 42.3GE 9000 15. 27.U 33.1 33.7 37.9 38.8 40.2 43.0 43.0 43.5 44.1 4.S 44.5 44.5 44.S 44.5GE 8000 16.5 29.0 32.9 317.4 41.6 42.4 44.3 47.5 47.5 48.0 49.9 U9.0 49.3 49.0 49.0 49.0SC 1('o0 1L6.5 29.Z2 1. U 17.7 41.9 4z.8a 44.7 47.8 47.8 48.5s 4Q.2 49 .4 49.4 49.4 49.4 4.9.4GE 60001 17.0 10.1 34.1 38.8 43.3 43.8 45.7 48.9 48.9 49.4 5.1 50.4 5a.4 50.4 50.4 0.4

6E S)O01 17.4 32.2 36.3 41.2 45.6 46.4 48.3 51.5 51.5 52.0 5?.9 1.0 53 .30 53.0 53.0 53.0GE 45001 18.4 3.6 37.7 42.6 47.n 4.8 49.7 52.9 52.9 53.6 54.4 54.6 54.6 4.6 54.6 54.6E -n01 19.3 15.5 34.8 45.% 49.7 50.6 52.7 Sb.O 56.0 56.7 57.9 %.1 58.1 58.1 5.1 6.I

GE 35001 20.3 37.6 41.9 47.5 S.q 52.7 54.8 58.1 58.1 58.8 60.) 60.2 60.3 60.3 6,.3 60.3GE 3COO1 21.6 40.2 44.7 50.8 55.1 56.0 58.4 61.9 61.9 62.6 63.t 64.0 64.3 64.3 64.1 64.3

UE 251)01 2,.1 41.4 45.1 52.5 56.9 57.9 60.3 64.0 64.0 64.9 66.1 66.3 65.6 66.6 66.6 66.6GE 20001 23.0 43.0 49.0 54.b 59.1 61.0 63.7 67.7 67.7 68.5 59.9 70 . 1 73.4 70.4 ?.4 70.4GE IUO1 23.3 43.5 49.7 55.8 60.5 62.3 64.9 68.9 69.0 69.9 71.T 71.5 71.8 71.8 71.8 71.8GE 15001 23.8 45.2 51.1 58.8 63.7 65.4 68.0 72.2 72,3 73.- 74.6 74.8 75.1 75.1 75.1 75.juE 17001 24.5 46.8 52.5 60.7 66.6 68.9 71.8 76.2 76.3 77.2 78.6 79.0 79.3 79.1 19.3 79.3

GE IOU0 24.5 46.8 52.5 60.9 67.1 b9.4 72.3 76.9 17.4 78.4 aP .2 80.5 83.9 80.9 80.9 8.9GE 9U0 24.5 47.0 52.1 61.2 67.5 69.7 72.7 ?7.6 78.3 79.5 81.4 81.7 82.3 42.3 82.3 82.3

GE 8001 24.5 47.5 52.7 61.6 68.1 71.0 73.9 79.0 79.8 R1.4 87.0 84.3 84.9 44.9 84.9 84.9GE 7001 24.5 47.0 52.7 61.7 69.2 71.8 75.1 80. 3 81.2 83.0 8".6 86.1 86.6 R6.6 86.6 8b.6

S. 6001 24.5 47.0 52.7 62.1 69.7 72.5 76.0 81.2 82.3 84.0 87.0 87.5 88.2 89.5 88.7 86.7

GE I sGo 24.5 47.0 52.7 62.3 69.9 72.9 76.5 83.9 83.0 84.7 88.3 89.0 93.4 91.0 91.3 91.56E 400 24.s 47.u 57.7 62.1 70.3 73. 0 76.9 82.3 83.3 85.6 89.6 90.8 92.7 93.2 93.6 94.3GE !00 24.5 47.3 52.9 62.3 70.7 73.2 77.6 83.0 84.0 86.4 90.6 92.2 94.3 94.8 95.3 96.0GE 7UO 24.5 47.1 52.9 62.3 70.1 73.4 77.7 83.1 84.1 '6.8 91.0 92.5 94.8 96.3 97.2 98.4

-E Io 1 24.5 47.1 52.9 62.3 70.1 73.4 77.7 83.1 84.3 86.8 91.0 92.7 95.0 96.5 97.4 99.7

SE of 24.5 47.1 52.9 62.3 70.1 73.4 77.7 83.1 84.3 86.8 91.0 92.7 95.0 96.5 97.4 100.0

1OT8L NUMPER OF OBSERVATIONS: 575

muj_

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFCIA C FROM HOURLY OASERVATIONSAIR WEATHER SERVICE/MAE

STATION NUMBLQ: 063250 S7AVION NAME: ZIERIKZE NL PERIOD OF RECORD: 77.80-84,86

MONTH: DEC HOURSILSTI: 1500-1700..........................................................................................................................

CEILING VISIBILITY IN STATUTE MILESIN GE GE GE GE GE 6- GE GE GE GE r.e GE GE GE GL GE

FEET 10 6 5 4 T , 112 7 1 112 1 1/4 1 314 5/8 1/2 5/16 1/4 0

NO CEIL 1 11.8 17.2 19.5 21.2 23.0 24.9 25.5 27.0 28.3 28.8 21.0 29.0 29.0 29.0 29.0 29.0

IE 200001 13.1 20.6 22.3 26.0 28.9 3(J. 7 31.3 33.o 34-5 35.0 3-.2 35.2 35.2 !5.2 35.2 35.2GE 18000 13.1 20.6 27.3 26.0 29.2 31.1 31.8 33.5 35.4 35.8 36.1 36.1 36.1 36.1 36.1 36.1bF l1600 13.1 20.6 22.3 26.0 29.' 31.1 31.8 33.5 35.4 35.8 36.1 36.1 36.1 36.1 36.1 36.16E 141C 00 11.3 10.8 22.5 26.2 29.4 31.3 32.0 33.7 35.6 36.1 36.3 36.3 36.3 36.3 36.3 36.3uE 1200 1 3.7 21.2 23.0 26.8 30.0 32.2 32.8 34.5 36.5 36.9 37.1 37.1 37.1 37.1 37.1 37.1

GE 100001 16.7 25.3 27.3 32.2 35.6 37.8 38.8 40.6 42.5 43.1 43.3 43.3 43.3 43.3 43.3 43.3GE 9C001 17.0 25.8 27.9 32.8 36. 1 38.9 39.5 41.2 43.1 43.8 44.0 44. 44.0 44.0 44.0 44.0GE 81001 17.8 27.3 33.0 35.2 38.9 41.2 42.5 44.2 46.1 46.8 47.0 47.0 47.0 47.0 47.0 47.0I.E 7n00I 17.8 27.7 33.5 36.1 39.7 42. 1 43.3 45.3 47.4 48.3 48.5 48.5 48.5 48.5 48.5 48.5I[ 60001 17.8 27.9 31.7 36.3 39.9 42.3 43.6 45.7 87.9 88.7 98.9 48.9 48.9 48.9 48.9 48.9

GE 50001 18.7 30.3 33.0 39.1 42.9 45.9 87.2 89.6 51.7 52.6 53.0 53.0 53.0 53.0 53.0 53.0IF v.0O 19.7 31"5 34.5 80.6 48.6 47.6 88.9 51.3 53.4 54.3 54.7 54.7 54.7 S4.7 54.7 54-7bE 40001 20.6 33.3 36.7 82.9 87.2 50.2 51.5 53.9 56.0 56.9 57.3 57.3 57.3 57.3 57.3 57.3I.E 35001 Z0.6 34.3 38.0 45.1 49.4 52.4 53.6 56.8 58.6 59.4 59.9 60.1 60.1 60.1 b.1 60.1bE 300o1 22.7 37.3 81.0 88.1 52.R 56.0 57.1 60.3 62.4 63.3 63.7 63.9 63.9 63.9 63.9 63.9

GE 2oo1 23.4 38.6 42.5 89.6 58." 58.2 59.7 63.1 65.7 66.5 67.0 67.2 67.2 67.2 b7.2

67.2GE 2r001 24.9 41.2 45.1 52.8 57.8 61.2 62.9 66.3 69.1 70. 70.4 70.6 70.6 70.b 70.6 7U.bIE 1FOOl 25.0 42.9 45.8 54.3 59.9 6!.3 6S.0 68.5 71.2 72.3 73.0 73.2 73.2 73.2 73.2 73.2IE 15001 26.0 44.4 48.5 56.0 61.6 65.5 67.8 71.5 74.5 75.5 76.2 76.6 76.6 76.6 76.6 76.6GE 12001 26.6 45.7 53.0 57.7 63.1 67.6 b9.7 78.0 17.3 76.8 79.4 79.8 79.8 79.8 79.8 79.8

GE Iro001 26.6 46.4 53.6 58.6 64.4 68.7 70.8 75.3 78.5 80.0 80.7 81.1 81.1 R1.1 81.1 81.1GE 9001 26.6 46.4 53.6 58.6 64. 68.7 70.8 75.8 79.0 80.5 81.1 81.8 81.8 81.8 81.8 81.8IE 8001 26.6 46.4 50.6 58.6 64.6 69.1 71.2 76.6 60.3 82.0 87.9 83.5 83.5 83.5 83.5 83.5GE 7001 26.6 46.4 51.6 58.8 64.8 69.3 71.5 77.3 81.5 A3.5 88.5 85.6 85.6 85.6 8S.6 85.6GE 600 26.6 4.6 53.9 59.2 65.5 70.0 72.1 78.3 82.6 85.2 86.5 87.6 87.6 87.6 87.6 87.6

6E 5001 26.6 46.6 53.9 59.7 65.9 70.4 72.5 79.0 83.s 86.7 88.4 89.7 89.7 89.7 89.7 89.7IE 4o0 26.6 46.8 51.1 59.9 66.3 7c.8 73.0 79.8 88.5 88.0 9.6 92.7 92.9 93.8 93.8 93.8

GE 3001 26.6 46.8 51.3 60.1 66.5 71.2 73.8 80.5 85.2 89.1 97.7 95.1 95.9 97.0 97.0 97.2

,E 2001 26.6 46.8 51.3 60.1 66.S 71.2 73.8 80.5 85.2 89.1 92.7 95.1 96.1 97.4 97.4 97.9GE 1001 26.6 46.8 51.3 60.1 66.5 71.2 73.4 80.5 65.2 89.1 97.9 95.3 96.6 98.1 98.3 99.6

IE 01 26.6 46.8 51.3 60.1 66.. 71.2 73.8 80.5 85.2 89.1 92.9 95.3 96.6 98.1 98.3 103.0

T07TL NUMBER OF 09SERVATIONS: 866

w. d 4

GLOBAL CLIMnAOLOGY BRANCH PERcENTAGE FREQUENCY oF OCCURRENCE OF CEIL'IJG VFRSUS VISIBILITYUSAFETAC FRO HOURLY OBSERVATIONS


STATION NUMBLR: 063250 STATION NAME: ZILRIK'E! NL r[Rool OF RECORD: 77,79-86

MONTH: DEC HOURSILST): IJRO-210O

IN Ir GE GE GE GE G- GE GE GE GE GE GE GE GE GE GEFEET 1 10 b 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/8 112 /16 1/4 0

NO CELL 1 12.0 17.9 2.1 22.4 23.8 24.7 25.6 28.0 28.1 28.3 2.0 29.2 29.2 29.2 29.4 29.4

GE 200001 13.1 21.1 23.8 26.7 28.3 29.6 33.5 32.8 33.0 33.2 31. 34.1 34.1 34.1 34.2 34.2GE 180001 13.3 21.3 Z124.0 26.9 24.5 29.7 30.6 33.2 33.5 11.7 34.4 34.6 34.6 34.b 34.8 34.8GE 16OI 13 33 21.3 24.0 26.9 28.5 29.7 30.6 33.2 33.5 33.7 34.4 14.6 34.6 34.6 34.8 34.4

GE 140001 13.3 21.3 24.0 26.9 28.5 29.7 30.6 33.2 33.5 33.7 34.4 34.6 34.6 34.6 34.8 34.8

GE 120001 13.3 21.3 24.0 27.1 28.9 10.1 31.0 33.9 34.2 34.4 35.1 35.3 35.3 35.3 35.5 35.5

GE 100001 14.9 25.3 24.0 31.2 33.S 34.8 36.4 39.2 39.8 40.0 4n.7 40.9 40.9 40.9 41.0 41.1GE 900 I1.1 25.8 29.5 31.7 34.4 35.7 37.3 40.1 40.7 40.9 41.6 41.8 41.8 41.8 41.9 41.9GE 4000! 15.1 27.2 33.1 33.7 36.4 37.6 39.2 42.1 42.7 43.0 4 .7 41.9 43.9 43.9 44.1 44.1

GE 70001 I15.2 ?7.6 33.5 34.2 36.9 38.2 39.8 42.7 43.4 43.7 94.4 44.6 44.6 44.6 44.8 44.8

GE 6000! 15.2 27.6 30.8 34.6 37.3 38.5 40.1 43.2 43.9 44.4 49.7 45.3 45.3 45.3 45.5 45.5

GE 5000 15.9 29.2 33.3 37.3 40.1 41.8 41.4 46.4 47.1 47.7 94.4 44.6 48.6 48.6 48.7 48.7GE 4500! 17.2 30.8 34.6 39.1 42.5 43.9 45.S 48.6 49.3 49.8 50.5 50.7 50.7 50.7 50.9 50.9GE 40001 19.9 35.5 39.4 44.1 47.q 50.2 52.0 55.0 55.7 56.3 57.2 57.3 57.3 57.3 57.5 57.5GE 3500! 21. 3 17.6 41.9 46.6 50.4 52.7 54.8 57.9 58.6 59.1 60.0 60.2 60.2 60.2 60.4 60.4GE 3000! 23.7 41.8 45.2 51.8 55.7 58.6 60.8 63.8 64.5 65.1 69.9 66.1 66.1 66.1 66.3 66.3

uE 21f00 24.0 43.7 49.4 54.1 58.? 61.5 63.8 67.0 67.7 68.3 69.2 69.4 69.4 69.4 69.5 69.5GE 2000! 24.9 46.1 53.9 57.0 61.6 65.2 67.9 71.3 72.0 72.8 73 . 7 73.8 73.8 73.8 74.0 74.0GE 1900 2S.1 47.C 52.0 58.2 62.9 66.7 69.4 72.9 73.8 74.7 7N.6 75.8 75.8 75.8 76.0 76.0GE 1' 00 25.4 98.4 53.6 60.4 65.4 69.2 71.9 75.4 76.3 77.4 78 * 3 78.5 78.5 78.5 78.7 76.7Gr 12001 25.6 49.8 55.E 62.5 67.9 71.7 74.4 78.3 79.4 90.5 81.4 81.5 81.5 81.5 81-7 I.7

GE I0001 25.6 50.7 56.8 64.0 69.9 74.2 76.9 81.2 82.3 83.3 84.2 R4.4 84.4 84.4 64.6 84.6GE 9co 25.6 50.9 57.0 64.5 70.6 75.1 77.8 82.3 83.5 84.6 8.5 85.7 85.7 85.7 85.g 95.8E 400! 25.8 51.3 57.5 65.1 71.5 76.0 78.9 83.5 84.8 46.2 87.1 87.3 87.3 87.3 87.5 87.5, 7U01 25.9 51.6 57.9 65.8 72.9 77.6 80.5 85.3 86.6 98.L 89.4 89.6 89.6 89.6 89.8 89.8GE 61J01 25.8 51,6 57.9 65.9 73.3 78.0 80.8 86.0 87.6 89.4 9P.7 90.9 90.9 90.9 91.0 91.U

GE tOG! 25.9 51.6 57.9 65.9 73.7 78.9 81.9 88.4 90.0 91.9 93.S 93.7 93.7 93.7 93.9 93.9GE 400! 25.8 51.6 57.5 65.9 73.R 79.0 82.3 89.1 91.2 93.5 9A.1 96.4 96.8 97.1 97.3 97. 3GE 3001! 25.8 51.6 57.9 65.9 73.9 79.0 82.3 89.2 91.4 93.9 96.6 97 *3 98.2 98.7 98.9 98.9

GE 2001 25.8 ,.L 57.5 65.9 73.9 79.0 82.3 89.2 91.4 93.9 96.6 97.3 98.2 98.7 98.9 99.1GE 100! 25.A 51.6 57.9 65.9 73.n 79.0 82.3 89.2 91.4 93.9 96.6 97.3 98.2 98.7 94.9 09.8

GE O 25.8 51.6 57.9 65.9 73.S 79.0 82.3 89.2 91.4 93.9 96.6 97.3 98.2 98.7 9q.9 100.0

IOTAL NUMBER OF OSERVATIONS: 558

.....

I-> GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FR-QUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM HOURLY OBSERVATIONS


STATION NUMBER: 063250 STATION NAME: ZIERIZEC NL PERIOD OF RECORD: 77,79-8.86MONTH: DEC HOURSCLSTI: 2100-230

CEILING VISIBILIFT IN STATUTE MILES

IN IGE GE GE GE GE G.- GE GE 6E GE GL GE GE GE GE GEFEET I 10 6 5 4 3 2 1/2 2 1 112 1 1/4 1 3/V 5/8 112 5/16 1/4 0

NO CEIL I 14.0 21.5 23.8 25.9 28.6 30.3 31.1 32.8 32.8 32.8 32.8 32.8 33.0 33.2 33.2 33.2

GE 200001 15.0 23.6 25.9 28.0 31.1 32.8 33.6 35.3 35.3 35.3 35.3 35.3 35.5 35.7 35.7 35.7uE 180001 15.0 23.6 25.9 28.0 31.1 32.8 33.6 35. 3 3 5.3 3F,3 3S.3 35.5 35.T 3S.7 35.7GE 160001 15.0 23.6 25.9 28.0 31. 1 32.8 33.6 35.3 35.3 35.3 35 3 35.3 35.5 35.7 35.7 35.7GE 140001 15.0 23.6 25.9 28.0 31.1 32.8 33.6 35.3 35.3 35.3 3r.3 35.3 35.5 35.7 3S.7 35.7

GE 120001 15.0 23.8 26.3 28.8 31.9 33.6 34.4 36.1 36.1 36.1 36.1 36.1 36.3 36.5 36.5 36.5

GE 100001 16.1 26.5 29.2 32.8 35.9 37.6 38.6 40.5 40.5 40.5 40.5 40.5 40.7 tO.9 40.9 40.9GE 90001 16-1 26.5 29.2 33.1U 36.3 38.0 39.0 40.9 40.9 40.9 40.9 40.9 41.1 41.3 41.3 41.3GE 8C001 16.1 26.7 29.4 33.2 36.7 38.4 39.5 41.3 41.3 41.3 41.3 41.3 41.5 41.8 41.8 41.8

GE 70001 16.1 26.9 29.6 33.4 37.0 38.6 39.7 41.5 41.5 41.5 41.5 41.5 41.8 42.0 42.0 42.0GE 60001 16.1 27.3 33.3 34.0 37.6 39.2 40.3 42.8 42.8 42.8 42.8 42.8 43.0 43.2 43.2 43.2

GE 50001 16.5 28.6 31.9 36.1 40.1 42.0 43.0 V5. 5 45.5 45.5 45.5 45.5 V5.7 45.9 45.9 45.9

GE 45001 17.1 29.4 33.2 37.4 41.3 43.2 44.3 46.8 46.8 46.8 46.8 46.8 47.0 47.2 47.2 47.2

GE 4C001 20.7 34.7 38.6 43.0 47.6 49.5 50.5 53.0 53.0 53.0 53.0 53.0 532 53.4 53.4 53.4

GE 35001 21.1 36.3 43.3 45.1 49.7 51.8 53.2 55.7 55.7 55.7 55.7 55.7 55.9 b.2 56.2 S6.2GE 30001 23.2 40.9 45.1 50.9 55.7 S7.8 59.5 62.2 62.2 62.2 67.2 62.2 b2 .4 62.6 62.6 62.6

GE 250oo 23.4 4Z.2 47.D 52.8 57.6 60.1 61.8 64.7 64.7 64.7 64.7 64.7 64.9 65.1 65.1 6S.1GE 20001 24.0 43.4 48.9 54.7 59.7 62.4 64.1 67.0 67.0 67.0 67.0 67.0 67.2 67.q 67.4 67.4GE 1801 24.0 44.9 53.7 57.2 62.4 6S.6 67.2 70.4 70.4 70.4 70.4 70.4 70.6 70.8 70.8 7.8

GE 1501 24.2 48.0 54.1 61.0 66.8 71.0 72.7 7b.o 76.2 76.4 76.6 76.6 76.8 77.0 77.0 77.0GE 12001 24.4 49.3 55.7 63.5 69.5 73.9 75.8 79.5 79.7 80.0 8.2 80.2 80.4 90.6 80.6 80.6

GE 17001 24.4 49.5 55.2 64.1 70.9 75.6 77.5 81.2 81.8 82.0 82.3 82.3 82.5 82.7 82.7 82.7GE 9001 24.4 49.7 55.4 64.7 71.6 76. 4 78.5 82.3 82.9 83.5 87.9 83.9 8#. 1 84.3 84.3 84.3GE 8001 24.4 49.9 55.8 65.3 72.4 77.9 80.0 84. 1 84, 85.4 p5.8 85.8 86.0 8b.2 86.2 86.2GE 7OO1 24.4 50.1 57.0 65.6 73.1 79.1 81.2 86.0 87.1 88.3 88.7 8.7 989 99.1 89.1 89.1GE 6001 24.q 50.1 57.0 65.6 73.1 79.1 81.2 87.5 89.5 90.0 90.6 90.6 90.8 91.0 91.0 91.0

GE 5UO1 24.4 50.1 57.G 65.6 73.3 79.3 81.4 88.1 89.6 91.2 91.9 91.9 92.1 92.7 92.7 92.7GE 4001 24.4 50.1 5T b 65,b 73.3 79.5 81.6 89.1 90.8 92.9 93.7 93.9 94.2 04.8 94.8 94.8GE 3001 24.4 50.1 57.0 65.6 73.3 79.5 81.6 89.1 91.4 94.2 9.0 95.q 95.8 O7.7 9'.7 97.7GE 2001 24.4 50.1 57.0 65.6 73.3 79.5 81.6 89.1 91.4 94.2 95.0 95.4 96.0 97.9 97.9 98.1GE 1o1 24.4 50.1 57.U 65.6 73.3 79.5 81.6 89.1 91.4 94.2 95.0 95.4 96.2 98.3 96.1 99.2

GE ol 24.4 50.1 57.0 b5b 73.3 79.5 81.6 89.1 91.4 94.2 9rfl 95.4 96.2 98.3 98.3 100.0

TOTAL NUMBER OF OBSRVATIIONS: 479

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FPRQUENCY OF OCCURPENCE OF CEILING VERSUS VISIBILITYUSAFET AC FROM HOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PERIOD OF RECORD: 77-86MONTH: DEC HOURSILSI: ALL

CEILING VISIPGLITY IN STATUTE MILLS

IN GE GE GE GE GE G GE GE GE GE GL GE GE GE GE GEFEET 10 6 5 4 3 2 112 2 1 112 1 1/4 1 3/4 5/8 1/2 5/16 1/4 0........ ........................................................................ ........... .......................................

NO CEIL 1 13.3 20.7 22.4 24.6 27.1 28.2 28.7 30.3 30.5 30.7 31.0 31.1 31.1 31.1 31.2 31.2

EE 200001 14.2 23.2 25.3 28.2 31.2 32.4 33.0 34.7 35.1 35.3 35.7 35.8 35.8 35.8 35.9 35.9GE 180001 14.2 23.2 25.4 28.3 31.3 32.6 33.2 34.9 35.3 35.6 35.9 36.0 36.0 36.1 36.1 36.2,E 160001 14.2 23.2 25.4 28.3 31.3 32.6 33.2 34.9 35.3 35.6 35.9 36.0 36.0 6.1 36.1 36.2GE 14UO 1 14.3 23.3 25.4 2s.4 31.4 32.7 33.3 35.0 35.4 35.6 36.0 36.1 36.1 36.2 36.2 '6.2GE 120001 14.5 23.8 25.9 29.0 32.1 33.4 34.0 35.8 36.2 36.4 36.8 36.9 36.9 37.3 37.0 37.0

GE 100001 15.7 26.6 28.9 32.4 35.7 37.1 38.0 39.9 40.3 40.6 41.0 41.1 41.1 41.1 41.2 41.2GE 90001 15.8 27.1 29.5 33.2 36.6 38.1 39.0 40.8 41.3 41.6 4?.n 42.1 42.1 42.1 42.2 42.2GE 8C0O0 16.1 28.3 31.0 35.0 38.5 40.0 41.0 43.

0 43.5 43.8 44.2 44.3 44.3 44.4 44.4 44.4GE 70001 16.2 28.6 31.4 35.5 39.1 40.6 41.6 43.6 44.2 44.5 44.9 45.0 45.0 45.1 45.1 45.1GE 67001 16.3 29.0 31.8 36.1 39.8 41.3 42.3 44.4 45.0 4S.3 45.7 45.9 45.9 45.9 46.0 46.0

GE 50001 16.9 30.8 33.8 38.5 42.6 44.2 45.2 47.5 48.1 48.4 48.8 48.9 49.0 49.0 49.1 49.1GE 4501 17.7 32.0 35.1 40.0 44.1 45.8 46.8 49.1 49.7 50.1 5n.5 60.6 50.7 SO.7 50.8 50.8GE 41o01 19.8 35.6 39.

1 44.3 48.7 50.5 51.6 54.1 54.7 55.1 55.6 55.7 55.7 55.8 55.9 55.9GE 35001 20.8 37.5 41.1 46.6 51.0 52.8 54.0 56.7 57.2 57.6 58.1 58.3 58.3 58.4 54.4 58.5GE 30001 22.7 41.2 44.9 50.8 55.5 67.4 58.7 61.5 62.1 62.4 63.0 63.1 63.2 63.3 63.3 63.4

GE 25001 23.3 42.7 46.7 52.9 57.7 59.7 61.2 64.1 64.8 65.2 65.7 65.9 66.0 66.0 66.1 6b.IGE 20001 24.0 44.4 48.7 55.1 60.? 62.5 64.1 67. 1 67.8 68.2 68.8 69.0 69.1 69.2 60.2 69.2GE 18001 24.4 45.8 53.3 56.9 62.2 64.6 66.2 69.4 70.2 70.7 71.3 71.5 71.6 71.7 71.8 71.8GE 15001 25.0 47.8 5.6 60.0 65.7 68.3 70.0 73.4 74.2 74.9 7S.1 7S.8 75.9 76.0 76.0 76.0GE 12001 25.5 49.2 54.3 62.4 68.5 71.4 73.2 76.8 77.9 78.6 79.7 79.5 79.6 79.7 79.8 79.8

GE 10001 25.5 49.4 548 63.2 69.6 72.6 74.4 78.3 79.4 80.3 81.0 81.3 81.4 81.5 81.6 81.6GE 9001 25.6 49.7 55.2 63.8 70.6 73.8 75.6 79.6 80.9 81.9 82.6 82.9 83.1 83.2 83.3 83.3GE BO0 25.6 vD.1 55.b 64.5 71.7 75.1 77.1 81.3 82.7 83.9 84.8 85.2 85.4 85.5 86.5 85.6bG 7001 25.6 50.3 55.9 65.2 72.9 76.5 78.7 83.2 84.7 46.1 87.1 87.6 87.8 81.9 88.0 88.GGE 6001 25.6 50.3 55.0 65.3 73.1 77.0 79.2 84.3 86.0 47.7 88.9 89.4 89.6 89.8 89.9 09.9

GE S001 25.6 50.3 65.0 65.4 73.4 77. 6 79.8 85.S 87.5 49.5 91.0 91.6 92.0 92.3 92.4 92.5GE 4001 25.6 50.4 56.0 65.6 73.5 77.7 80.2 86.3 88.5 90.8 92.7 93.7 94.4 95.0 95.1 95.2GE 3001 25.6 s0.4 56.1 65.5 73.6 77.8 80.4 86.5 88.9 91.4 93.6 94.7 95.7 96.7 96.8 97.1GE 7001 25.6 50.4 65.1 65.5 73.6 77.8 80.4 86.6 89.0 91.6 93.8 95.0 96.1 97.5 97.7 98.5GE 1ol 25.6 S0.4 56.1 65.5 73.6 77.8 80.4 86.6 89.0 91.6 93.9 95.1 96.4 97.9 98.2 99.8

GE 0 25.6 50.4 56.1 65.5 73. 77.8 80.4 46.6 89.0 91.6 97.9 95.1 96.4 97.9 98.2 100.0

.. .. .............................................................. ..... .......... ........ ...............................


GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FR-QUENCY OF OCCURRENCE OF CEILING VFRSUS VISIBILITY

USAFETAC FROM HOUqLY OBSERVATIONS


SIATION NUMBER: 063250 STATION NAME: ZIERIKZE[ NL PEPIO0 Of RECORO: 77-6?MONTH: ALL HOURSILSI|: ALL

CEILING VISIBILITY IN STATUTE MILLS

IN I GE GE 3E GE GE 02 GE GE GE GE GL GE GE GE GE GE

FEET I 10 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/N 5/8 112 "/16 1/ 0..... ° .... . . . . . . . . . . .. . . . . . . . . ................................ ........... ............ ' ... . . . . .

NO CEIL I 1,.2 25.3 27.4 30.5 32.0 39.2 35.0 36.9 37.6 38.3 38.6 38.7 38.8 39.3 39.0 39.S

GE 2000 17.6 29.7 32.2 36.0 38.P 90.3 N 1.3 43.9 44.2 95.0 4-.4 45.5 45.7 95.A 95.9 9b.2

GE 180001 17.7 29.8 32.3 36.1 38.9 90.4 9 1.9 93.6 49.3 45.2 4r.5 45.7 95.8 96.0 96.0 96.3

GE 160001 17.7 29.8 32.3 36.1 38.9 40.4 91.9 43.6 44.3 95.2 91.5 9S.7 95.8 46.3 96.0 96.3bE 141001 17.7 29.9 32.4 36.2 39.3 0.6 N1.6 N 3.7 44.5 45.3 4%.7 45.9 96.0 96.1 96.2 96.5GE 1200 12 18.0 30.6 33.2 37.0 39.9 91.5 92.5 9.7 95.5 96.4 46.7 96.9 97.1 97.2 47.2 97.6

GE 100001 19.7 39.3 37.2 41.5 49.7 46.4 97.5 99.9 50.7 51.6 52.0 52.2 52.9 52.5 52.6 52.9GE 9G000 20.2 35.5 38.5 43.0 96.3 46.0 99.2 51.6 52.5 53.4 53.8 59.0 59.2 54.3 59.9 59.7GE 87001 2n.9 37.2 93.4 95.3 98.7 50.5 51.7 59.3 55.3 56.2 56.7 56.9 57.1 r7.2 57.3 57.6(.E 7C002 21.1 37.5 93.6 95.7 99.' 51.1 52.3 59.9 55.6 56.6 57.3 57.5 57.1 57.6 57.9 58.2GE 6C000 21.2 37.9 91.2 96.2 99.7 11 6 52.9 55.5 56,5 57.5 57.9 58.2 58.3 58.5 58.5 58.9

GE 59001 22.1 39.7 93.3 98.5 52.2 59.2 55.5 56.2 59.3 60.3 6n.R 61.0 61.2 61.3 61.9 61.7GE 9!001273.0 41.4 95.1 50.5 54.3 56.9 57.7 60.5 61.5 62.6 63.1 63.3 63.5 63.7 63.7 64.1GE 4o00 25.1 45.3 47.3 55.1 59.1 61.3 62.6 65.6 66.7 67.8 68.3 68.6 68.8 68.9 69.0 69.3GE 35C01 Z6.3 47.5 51.7 57.8 61.9 69.1 65.6 68.6 69.7 70.8 71.q 71.6 71.8 72.0 72.0 72.4EE 30001 27.6 50.1 54.6 61.u 65.3 67.7 69.2 72.3 73.5 79.7 75.2 75.5 75.7 75.8 75.9 76.2

GE 2501 28.5 52.1 55.7 63.9 68.3 70.9 72.0 75.3 76.5 77.7 7P.2 78.5 78.7 78.9 70.9 79.3GE 2'0GI 29.3 53.8 58.7 65.6 70.9 72.9 79.5 77.9 79.2 6O.9 81.0 81.2 81.5 81.6 61.7 82.0GE 18001 29.8 55.0 63.0 67.2 72.1 79.7 76.3 79.8 81.1 82.3 87.9 83.2 83.4 83.6 83.7 89.0GE 15001 30.3 56.4 61.6 69.1 74. 77.0 78.8 82.9 83.7 65.1 85.7 85.9 86.2 86.3 86.4 96.7

GE 12001 30.7 57.3 62.5 70.7 76.r) 78.9 80.7 89.6 66.0 R7.3 88.7 68.3 88.5 88.7 88.8 89.1

1.E 1001 30.7 57.5 63.1 71.1 76.6 79.6 81.5 85.5 86.9 88.3 89.1 89.9 69.6 89.8 89.8 90.2GE 9001 30.7 57.7 63.4 71.5 77.7 80.3 82.2 86.3 87.8 89.3 91.1 90.9 90.7 90.6 90.9 91.2GE 8001 30.7 57.9 63.7 72. 1 77.9 81.1 83.1 87.5 89.1 93.7 91.6 92.0 92.2 92.4 92. 92.8

GE 7002 30.7 58.1 63.9 72.5 78., 81.9 8.0 88.6 90.3 92.1 93.0 93.4 93.7 93.9 93.9 99. 3GE 6001 30.7 58.1 64.0 72.7 78.9 82.3 89.9 89.3 91.2 93.1 94.1 94.5 99.8 95.0 95.1 95.5

GE 5U02 30.7 58.1 6%.2 72.8 79.1 82.6 89.8 89.9 91.8 93.9 95.1 95.6 95.9 96.2 96.3 96.6GE 4001 30.7 58.1 69.1 72.6 79.2 82.7 85.0 90.1 92.2 99.5 95.7 96.3 96.8 97.1 97.2 97.5

GE 3001 30.7 58.1 b9. 72.9 79. 92.7 85.0 90.z 92.9 99.7 96.0 96.7 97.3 97.7 97.8 98.2

GE 2002 30.7 58.1 64.1 72.9 79.2 82.7 85.0 90.3 92.9 99.8 96.1 96.9 97.5 98.1 98.3 99.0GE 3001 30.7 58.1 69.1 7Z.9 79. 82.7 85.0 90.3 92.9 ,99.8 96.2 96.9 97.6 96.3 98.5 99.8

GE 0I 30.7 58.1 64.3 72.9 79." 8 .7 85.0 90.3 92.9 99.8 96.Z 96.9 97.6 98.3 98.5 100.0

TOTAL NUMBER OF OBSRVATIONS: 53R20

*

A

GLOBAL CLIMATOLOGY BRANCH PERCEVIAGE FREQUENCY OF OCCURRENCE OF SKY COVER


STATION NUMBER: 063253 STATION NAME: ZIERIKZE NL PLPlOD OF RECORO: 18,0-81

MONTH: JAN... .. I .I. ,,. . .. . . . . .. . . . . .. . . . ......,. , . I H .... .o. .. ... , .. ..... ...... o --... o....... ..... .

PERCENTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVERHOURS I TOTAlILSTS I 0 1 2 3 N 6 1 8 9 10 MEAN 08

.. .. . .. . .. . .............,.,......,... .. * .. . ... . . . .. . . . . .. . . . .. . ..,. . ......°. ,,, .. .,.,. ,.. . .

U0-OZ I 2.1 9.7 6. 1 5.0 3.0 3.9 6.7 9.5 N3.N 6.6 463

U3-05 I 5 .N4 10.9 6.6 2.9 N.1 2.7 5.9 9.3 42.2 6.3 143

06-08 9.6 7.8 8.2 N.3 2.9 4.9 6.4 10.1 45.8 6.9 513

09-11 3.1 10.8 6.1 N.3 4.3 4.7 9.2 20.0 37.4 ?.Z Naq

12-1I 3.4 8.8 3.8 5.1 3.6 4.3 6.1 24.9 37.9 7.5 S55

15-17 3.9 7.8 5.9 .6 2.6 N.3 9.S 22.1 39.3 7.5 461

18-2a 5.3 a.7 6.0 5.3 3.5 3.5 7.1 13.3 47. 3 7.4 566

21-23 10.9 6.5 5.9 5.N 3.1 2.5 5.16 13.8 96.2 7.1 N18

TOTALS e .0 8.9 6.2 .6 3.8 3.9 7.3 15.4 42.4 7.1 3965

..............................................................................................................................................

STATION NUMBER: 063250 STATION NAME: ZILRIKZE! NL pERIOD oF RECORD: 1-8MONTH: FEB

PERCEVTAGE FREQUENCY OF TENTHS OF TOTAL SKY COVER

HOURS I TOTAlILSTI 1 0 1 2 3 N 5 6 7 a 9 10 MEAN OBS

............................................................................................................................................00-02 29.5 5.4 6.8 2.9 1.2 2.1 4.9 8.5 38.8 5.6 577

03-05 29.8 6.4 3.8 N.2 1.7 2.9 2.6 8.8 39.8 5.6 578

06-08 19.2 10.0 5.3 5.0 2.6 1.9 4.0 9.5 N2.N 6.1 620

09-1I 11.2 11.9 4.5 3.5 8.0 S.N 5.8 20.1 34.0 b.b 606

12-1 1 30.5 12.2 6.8 6.0 2.6 N6 6.2 20.1 30.9 6.8 6N7

15-17 12.8 12.2 3.8 3.9 3.3 N.9 7.1 19.2 32.1 6.8 608

18-20 13.4 11.3 S. 3 .7 2.7 5.8 5.3 1S. 36.1 6.8 657

21-23 24.6 1.3 4. 1 6.1 2.5 3.5 4.O 9.1 18.9 5.9 66

TOTALS ... 8.9 9.6 5.3 N.5 2.6 3.9 4.9 13.8 3b.7 bI 899

. .. .. . . . .... . . :9 .. . . .... ..... .. ... . . . .. .

tLOBAL CLIMATOLOGY BRANCH P[RCL41AGE FREQUENCY OIF OCCURRENCE OF SAT COVERUSAFETAC FROM HOUJOLY OBSERVATIONSAIR uEATHER SERVICE/MAC

STATION NUMRLA: 063250 STVT1o#. NAME: ZIFRIAZEE- NI P10300 CF PLEOFTO: TA-AT7MONTH: PAP

................................................................................................................................................PERCEIlASE FREQUENCY (IF TENTHS OF TOTAL SKT LOVER

HOUR Is I OTA:TEST) I 1 2 1 A ct 6 7 4 9 10 ACHAN OHS

00-02 I 0.9 A8.6 L.A 3.A 2.4 4o.31 5.4 4.4 42.6 6.2 631

03-0S I 1 2.4 7.0 5.8 4.5 2.6 41.5 5.0 9.1 40.1 6.1 614

06-0A 11 .3 10 .2 4.A 3.9 1.9 %.9 1.4l 15. 3 41.0 6.A 693

09-11 1 7 .3 9.3 A.?7 5.5 2.8 3.9 5.13 24.5 36.6 7.31 674

12-14 I 6.9 8 .2 S.9 41.8 3.2 4.9 7.9 25.2 33.1 7.3 7 11

15-7I? 6 .3 10.2 1. 1 4.2 3.4 7.3 4.6 25.3 32.6 6.9 64A

34-20 I 6.1 32.9 7.2 4.2 3.5 5.6 6.4 22.3 31.8 6.7 708

21-23 I 5.9 7.7 t.. 3 5.0 3.3 3.A 6.3 13.A IA. 1 6. 4 640

TOTALS I 12.0 9.3 S. 7 4.5 2.9 4.9 6.0 1A.0 36.9 6. 7 5323

...............................................................................................................................................

STATION NUMBER: 063250 STAT IONJ NAME: Z1FRIK ZE NL, pEPIOD Or RECORD: lA-A?MONTH: APR

pERCEITAGE FREQUENCY OF IENTHS OF TOTAL SAT COVERHOURS ITOT Al

(IST) I1 0 1 2 3 4 5 6 7 8 9 10 MEA4 ORS...............................................................................................................................................

00-132 21 2.7 11 .1 6.A .4.3 3.6 4 . ? 4.5 12.7 33.2 5.5 577

03-05 2U7.0 113.5 7.8 4.2 2.0 4 .7 7.8 9.8 32.2 S.6 550

06-08 b 6.9 15.5 7.5 5.0 2.4 4.8 7.2 25.0 25.6 6.4 624

C9-3I1 I 7.6 13.2 6.9 5.3 4l.31 4 .9 5.8 22.9 31.3 6.1 607

12-14 S .9 1t3.1 e. 3 5.3 4.1 ".5 8.5 24.7 25.6 6.6 660

15-1? 5 5.7 35.8 6. 1 5.3 4.9 6.2 6.9 25.0 24.1 6.4 609

18-20 I 6.3 27.40 10.8 6.3 3.8 6.2 7.4 19.4 22-5 5.9 650

21-23 I 12.0 19.0 10.6 4.3 2.9 4.7 5.2 12.1) 29.5 5.5 559

us4TOTALS. I 10.:a. 14. V.3 !* 35 5.3 6.?7 18.9 27.8 6.3 483

........ : 1 ....... ........................2. ....

C0I0.60L CLIMA10003Y BRilANCH PtItLLIlAGE FREQUENCY OF OCCURRE.NCE Of SKY COVERIJSAFEtFAC FROM HOURLY OBSERVATIONSAIR uEATHEO SERVICE/MA(

STATION NUF'OLP: U63250 ST AT I N NAME : ZIF R IN ZE NL PEIO1U Of RECORD: 78-86MONTH: PAT

PfRCIAAGE FREQJUENCY (IF TENTHS OF TOTAL SMY COVERHOURS I TOTAItLSTI 1 0 1 2 3 4 5 6 7 A 9 10 MEA4 0HS

G0-02 ?U'.) 13.2 5.9 S- 3.13 2.5 ',.6 12.13 31.4 1 .6 478?

03-05 11.9 16.3 a.9 3.S 2.0 6.1 9.1 16. 1 2S.4 5.0 429

06-08 6 .5 13.0 7. 3 4.8 3.7 6.5 7.8 22.5 27. 7 6.5 637

r9-I 11 5.9 12Z 0. 9 5.3 4.3 6.5 7. 1 22.2 27.8 6.5 492

12-14 4 N.1 14.3 7.6 6. 3 5.0 1.4i 9.9 11-.3 27.9 b.5 537

IS-17 5 5.3 17.2 0. 3 5.5 6.0 4.9 9.6 21.1 22.1 6.1 4170

18-20 I 6.2 19.0 7.6 7 .4 3.7 5.6 10i. 3 19.6 20.0 5.0 516

21-23 8 .6 -0.2 10.0 6.3 3.4 6.1 6.6 16.0 22.0 5.5 441

TOTALS I 8.6 15.0 P.1I 5.6 4. 0 5. 7 0.3 30.5 25.5 6.3 39U0

517T0O NUHRER: 063250 ST AT ION NAME: 71E0302E- NL T'rPIOU OF RECORDO: 77-86MONTH: JUN

pEOLE4TAOE FREQUENCY OF TENTHS Of TOTAL $NT COVERHOURS I TOTAl(ST I r 1 3 41 5 6 7 a 9 10 MLA4 00$

UO-02 13 3.3 17.7 7.9 1.0 S.3 41.0 7.2 33.2 26.5 5.% 430

03-05 I 10.2 11.5 10. 0 5.9 6.6 3.7 6. 3 19. 3 24.6 6.3 410

06-08 a 8.1 30 .6 7.0 6.7 2.3 5.0 7.4 23.1 20.1 6.6 566

1;9- 11 7 7.6 12.2 5.4 6.3 6.3 7.,I 0.3 23. 1 24.0 6.4 543

12-14 6 4.5 13.8 6.9 7.6 6.3 8.7 0.0 23.2 21. 3 6.3 57R

15-17 I 5.2 15.0 7.5 7. 3 5.0 6.0 10.4 22.9 39.5 6.2 519

18-20 3 7.3 1-1.4 5.9 5.9 5.0 7.0 13.6 22. 9 10.2 6.1 577

.1-23 S 5.1 17.3 9. 9 6.2 3. 7 9.2 0.5 20.3 19.0 5.9 434

TOTALS I .71 14.2 7. 7 6.6 5.1 (.S 0.0 20.0 22.8 6.3

%as0

GLObAL CLIMAIOLOGY BRANCH PfRCE41801- FREQULNCY nF OCCURRLNCE ') 'Y (OVg

USAVEOAC FROM HOURLY ObERV*ATION

Alp wrAIHER SERVXCE/MA(

STA1ON NUaFR: U63250 ST1*10N NAM[: 7IFRiK.8'. NL "'f01Ou Of (1COR0: 71-8bMONTH: JUL

PFRCLI IAG[ FREQUENCY Of TENTHS OF TOTAL SKY (3Vt1R

HOURS I IOT iTISTI I r 1 2 5 f. 7 9 10 WEA Otis

L0-02 19 .6 19 .0 P. 2 .8 3.6 4.6 6.9 12.9 '6. 3 ". 1 99

U5-05 9.7 . 6.3 6.4 b.6 2.7 o.1 9.9 14.5 .5.9 6.J 986

C.b 08 7 .9 1 . .9 6.5 9.3 3.3 .6 9.b 27.4 '9.65 6 "5 35

09-11 16 .9 11 .0 6. 9 7.6 9.9 7.9 7.9 25.0 21. I b'S 607

12-11S 4 .8 12.8 7. 9 5.6 6.6 7.6 10.9 ?6.? 17.6 6.9 691

5-17 7.2 |35.5 7. 3 6.8 6.1 7.0 9.0 29.9 36.0 5.9 587

18-20 9.8 16.0 8.5 7.7 9. 7 6.8 7. 25.9 13.2 5.6 bb

21-23 1 9.3 ?9.0 8.6 5.8 9.7 6.8 C.5 '0.3 20.1 5.S 513

TOTALS 1 6.5 15.3 7.5 6.2 9.6 6.2 8.3 22.6 ?0.9 6.3 9635

5TATI0N NUMBL: 06325r) StATIO NAME: ZIERIKE. ME. PlRO0 OF RECORU: 77-86

MONTH: AU,

PERC(.3389 FREQUENCY OFr TENTHS Or TOTAL. SKY LOWER

HOURS I 1051

TEST) 1 1 1 2 3 9 5 6 r 8 9 t0 MIA O5

00-02 29 .8 3L.5 9.6 6.0 2.9 9. 3 6.9 9.2 20.5 A..5 533

0 3-o5 I 16.3 !, .1 6.9 6.9 5.1 5.3 9.6 15. 3 0.9 5.3 509

06-08 7.1 13.6 7.9 5.9 3.7 7.7 9.1 26.5 18.0 b-? 649

ug-II 7 Z 12.4 6. 1 6.9 7.8 8.0 1 3.3 25.5 15. 3 6.2 639

12-14 1 7.2 12.8 7.0 6.9 5.8 6 9 12.2 25.5 I5.7 b.? 655

15-17 8.0 39.3 9.6 8.6 8.0 8.5 8.3 22.3 12.9 5.6 639

31-20 8.3 18.5 11.2 8.6 S.2 7.0 .9 21.2 33.6 5. 6:8

23-2 3 18.0 21.3 a.9 1.9 3.7 9.0 7.0 13.6 36.3 9.6 5S5

TOTALS . 12.1 15.7 8.3 7.2 5.2 6.5 9.0 39.9 16.3 5.5 .. 83 2

. .. .............. ............ .......

tO11AL. CLIMAIOI.ObV 99*9tH P16llt291*6 IR~gULNCY OF UCCURRENC& lf ', tapiR?USAFVC SAC rmo., HOu;tLY O61fpv~rtotSAIR WEATHER SIRR ICE/MAC

STATION NUW%(P: C'tC 52*, 0 ', IA R V AMS: ,If R IP/ A I ItI"100 f. i46c00: 17-Pb

pIRpC(IqIA(.! FRi gij kCV F 4IIHS Of TOI*: SOY ( OVI RHOURS I Iota#Isl I b , 9 10 119 08

20-0!2 1 2.6 . 1;1 6b.7 1 4. 1 .2 90.9 5%1 1 1.9 25-.9 9.1 , I

L; - rS 1 1.8 11 .9 A.3 6.0 1. 1 2.9 #.6 I. 2 71.27 .1.4 1 59

o6-06 1 7.1 11. a8.2 5 .8 5.6 9.9 H. 21.2 '9. 6.S 621

Ll I2 6 .9 9 .9 6. 9 S.% 12 6.9 .9 ?F9. 9 13. 6.7 9

121 I 5. 9.1 9. 6 ?.6 6.! 5 .? 6. 7*j 26 b ~ 67

65I I 61 10.6 10. 1 1.1 5.1 6.I 1q. 7 2%. 19.5 6.1 6Hr

195 I .9 15.2 10. 2 7.6 6.4 6. 1 4.0 221.9 l6.5 5. 656

II73 i .?1 16 .6 11.6a 5.2 4.% 6. 3 0. 1 .0 21.3. 5. I S97

TOTALS I 11.9 12 .1 9. 3 6. 1 9.6 S.9 1.0 J 20.2 22.6 5l.1 4 11S

S I AtI10 NUrRIR 0: 06125.3 "0 7S*AT Of NAME - ?ItR IK2UE NI. rl p'Iou (F aiC C)~n 7.19 -Sb

PIdCE1*S( FREQUENCY Or lEwi"HS or vut SKY LovR

HOURS 1 TOT41

tLSI? I L I 2 1 9 5 6 1 A 9 Gj -[AS 095O

.. . . ..................................................................................

or)- 02 I 11.6 11.5a.0 g,9 5.3 3. 7 94.6 bb.. 12 .3 lU.2 51.71 596

c 1-05 I 2.6 12 .2 6. 9 6.5 2.0 1.6 A.7 12.2 32.7 5. 7 55s2

05-08 7 1.6 21 5.9% 6. 1 5.3 7 .71 9.1 Ib.Q 30.21 6.9 607

9- Il I S .0 20.9 9. 5 9.7 9 .1 6.9 b.9 21.90 77.9 1.3 595

12-2 1I 4 .9 20J.5 1.j 6.5 9..6 6. 6. 9. 1.6 6.9 6 37c

I11 I 9. I .7 1.9 7.2 3.9 1.2 1 u.s 21.2 25.0 6.6 569

I A- 20 6 6.9 7.5 6.2 6.6 9.1 7.0 7.0] 16.6 27.2 6.1 b0o

1I-23 2 16.1 17t..2 1. 9 6.9 3.0 1. (6.9 11.6 '2.5 S. ; 569

10790 I I1 2167? .i .0 S. 0. 16.0 29.2 6.3 9661

-do

GLObAL CLIMAIOLOGY PRV4CH PfPC(tIIAGE tREQUL.Y OF UCCURRLNCT OT ',V £LOVfRUSAF TAC FROM HOUqL

V O SLRV*Tl0ON

AIR Wf IAT..W SERVICEI/At

ST|AIION MUARTQ: 06 12'. STATInk .ANE: ., IkI: AL Ti 01 30 K0 LCJRO: 7?79-86

MONTI.: NOV

pfLIIl 1A5. rRI EUENCY OF TENIHS°OF 1OTAL SKY (OVER

HOURS TOT lII LsTII I A I 1 A 6 7 A 9 13 MT AN OHs

3)-02 1 .2 V.1 9.5 b.1 1.2 5.A 1 .13.4 6.2 6.3 99

j I-Us 15 .4 9 l. 1 7. 1 3. 7 3.3 4.6 4.2 11.0 19. 1 6.2 95 5,

6-08 IL .1 I30.6 1., . 3 2.0 6. 1 8 . ) 14.9 R. 1 6. 7 540

9-1 1 . 1 1.A S.6 5.0 3.1 5.8 m9.5 '8. 2 32.5 7.9 4 6

A-A A 3.9 7.9 b.5 b.1 3.2 3.9 8.I 28.2 '1.9 1.3 Sb?

I-A A 7 3.1 9.3 7. 1 1.5 5.1 b.5 1. 25.9 21.8 6.9 493

b2- 6.1 9.5 7.9 5.6 9.5 6.1 V.3 16.9 '5.u 6.8 55S

1-23 I2.6 110.1 b. 3 3.2 9.8 5.3 b.I 12.b 18.1 6.9 475

TOTALS A .6 9.9 1. 0 5.2 3.5 S. 3 7. 3 18.8 34 .9 b.9 9ob2

STAIION NUMBER: 063250 STATION NAME: ZIFRIKZt: NL PERIO0 OF PECuRU: 77-86MnH: OtC

...........................................p.RC.......°.R..U..C...r * ; .N .. .. " .; ...* ...... R................................

pERCEVTOSE FREQUENCY TIE TENTHS Or TOTAL 5KY COVER

HOURS I TOTAl

IL519 I 0 I 2 3 A 5 6 7 9 9 AD "1A* 065

• .. .. * ..... .... . ......... .. o ............. *.....*o..................................... o

00-02 I 12.3 8.9 9.5 5.1 3.8 5.1 S.5 10.6 39.2 6.9 912

03-05 I 1. 1 12.7 8.5 4.0 1.9 9.5 6.6 11.6 19.2 t.4 9i%

Ut-08 I 7.2 8.3 6.1 9.8 9.2 9.2 7.4 13.b 99.2 7.2 5l

0o-Il I 1 .9 9.2 9.8 .9 9.2 5.b H.6 25.3 11.9 7.6b 1A

AZ-1A 1 .17 ILI. 5. 0 6.9 3.5 9., 8.0 29.3 35.9 l.4 Sib

15-17 .6 11.1 9.7 .9 3.6 9.9 7.y ?.0 34.5 7.1 910

1-20 5.9 11 .1 5.9 9.3 2.0 5.9 8.1 15. 1 1.8 7.1 559

21-23 I1 .? 6.9 6.5 3.1 9.9 5.2 1.A 11.9 93.2 6.1 979

TOTALS 6.6 9.8 6. 9 4.4 3.5 5.0 1.9 17.1 09.9 7. 900........................................................................................................................

(GLObAL CLI|AIOLObL FRANCH PRC(.4TAE FREQUENCT OF OCCURRENCE OF SPY L0VER

USAF(IAC FROM HOULY OBSERVATIONS

AIR w(AIH(R SERVIC./MAC

STATION NUPRLR: 063250 SIAtI % NaME: ZIFRIKZ[E 4L E PO0 OF RECORD: 77-87

MONTH: ALL

PRCE.ITAGE FREQUfENCY OF TENTHS Of TOTAL SKY LOVER

HOURS II 1Ai

ILSI) I I 2 3 8 5 6 7 8 9 I'l P[A4 365

JAN ALL ;4.J 8.9 62 8.6 3.8 3.97

FEp 18.9 9.b S.I %.S 2.b 3.9 1.Q 13.8 '6.7 b.1 8899

MAR 12 .0 9.3 5 *7 0.5 2.9 4.9 b.J 18.0 16.9 6.? 532

APP 1 ,8 14 .1 8.1 5.0 3.5 5. 3 F. 7 18.9 ?7.6 b.1 403.

MAY 6 .6 ll .6 8.1 5.6 4.0 5.7 8 .3 18.5 25.S 6.) 39G0

JUN 7 .7 18.2 7.7 6.6 5.1 6.5 6.8 Z3.8 22.8 b.1 8055

JUL d .5 15.3 7. 5 6.2 8.6 6.2 8. 22.b 20.9 b.3 4635

AUG 12.1 15.? b.3 7.2 5.2 6.5 9. 19.9 16.3 5.5 483.

5(p 1 1 .9 12.1 9. 3 6.1 8.6 5.8 8.0 20.2 22.6 5.9 4738

OCT IC.i 11.6 7.2 b.3 8.1 S.7 8. 0 18.0 29.2 6.3 46b7

NOV 8.6 9.8 7.0 S.2 3.5 5.3 7.3 18.8 !4.9 6.8 4062

DEC 6 b .6 9.8 6.9 9.8 3.6 5.0 7.8 17. 1 19.4 7.) 8000

TOTALS Ic .3 1..2 7. 3 5.5 3.9 5.8 7.5 18.5 29.b 6.3 53908

I

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ppppppp p LAAA "R R ARRA R TTTTITTTTT EEEC E

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PPPPPPPPP At A AA PIIRR RRR RR TI EEFrIEPPPPPPPP AfAAAAAAAA R PRRRPR I FLE41LPP DIAAAAAAAA R PP TRI E IPP L A A Pr PP T I E

PP A A AA R T RP T I FL[tfLF[FEt

PP A A AA PR R R TI tEETTCAfI[C

TLMPTRITURE AND RELATIVE HUMIDITY SUMMARTES

CUMULATIVE PERCENTAGE FREQwENET OF OCCURR[NCE OF DAILY MAXIMUM (MINIMUM ANO MEANT TEMPERATURES

PLRCCNTAGL TALULATIOtNS PEESLNIED BY '-DEGREE FAHRENHEIT INCREMENTS PLUS THE MEAN. STAND 0EV-IATIONS AND TOTAL OSEPrVAIION COUNT.

THE MINIMUM TAPLE ALSO INCLUDES A '3 DEGREE FAHRENHEIT VALUE.

SINCE TM

NY STATIONS/SITIS D0 NOT HAVE MAXIMUM/MINIMUM THESE TLMPERATURES ArTE SELECTED BY SCAN-

NJING [HE HOURLY OBSERYVTIONS FOR THE HIG4EST AND LOWEST VALUES.

STATISTICS DO NOT INCLUDE INCOMPLETE MONTHS.

FORE OR MORE CTTMPLE IL MONTHS ARE REQUIRE) FOR COMPUIING

EXTREME MAXIMUM AND MINIMUM VALUES

DATA DERIVED FROM EXTRACTING THE HIGH AN) LOW TEMPERATURES FROM THE HOURLY OPSERVATIONS.

PRESENTED ARE THE HIGHEST (LOwEST) TEMPERATURE FOR THE MONTH FOR EACH YEAR.

ALSO PRESENTED ARE STATISTICAL VALUES WITH THE SAME LIMITATIONS MENTIONED ABOVE.

AN ASTERIST IN(ITCATES AN INCOMPLETE 0PO14.

MEANS AND STANDARD nEVIA TIONS FOR URY BILB (T BULB AND DEW POINTI TEMPERATURES

DATA DERIVED FPO HOURLY ORSERVATIONS.

DATA PPLSENTEG BY T14E ITANOARU S-HnUR TIME GROUPS BY MONTH. MONTHLY AND ANNUALLY IALL YEARS COMBINED).

PRFSENTEU ARE "LAS, STA'DARD DEVIATION AND OSERVATION COUNTS.

CUMULATIVE PLRCENTAGE FRECUITy OF OCCU0RENCE Of RELATIVE HUMIDITY

OATA UFRIVED FROM HTURLY OPSERVATIONS.

SUP*MARIZED BY THE 'TANTAPD 3-HOUR TIME GROUPS BY M MON. MONTHLY AND ANNUALLY (ATE YEARS COMBINFD).

PLRCENIAGE VALUES P'RDS/TTEO IN I0 IEGkF INCREMENTS OF RELATIVE HUMIDITY.

ALSO PRESENTED ARE THE MEAN VALUES AND DASERVATION COURITS.

I.i

40

GLOAAL CLIMATOLOGY BRANCH ORY-BUL- TEMPERATURES BEG F FPOM MEANS AND STANDARD DEVIATIONS

uSAFETAC HOURLY 3ASERVATIONSAIR WEATHER SERVICE/MAC

SIATION NUMBER: 063250 STATION NAME: ZIERIKZEC NL PEPIOD OF RLCORD: 77-87

HOURSI STATS I .18N rEA MAR APP MAY JUN jUL AUG sEP OCT NOV DCC ANN

LST I I

O-021 53 I 9.-03 7. 478 5.870 4.931 4.437 4.535 4.646 4.119 4.487 5.703 6.730 6.16b 1O.737ITO? OS1 NS7 577 633 572 476 429 499 534 543 545 494 41 623C

I MEAN I 34.8 32.9 38.4 43.0 N8.7 55.0 S8.7 59.4 56.0 .0.5 45.1 38.8 46.63-o5l S I 9.862 7.417 6.20U 4.665 4.286 N.267 N.096 N.113 4.b.6 5.691 6.744 6.145 10.796

Io OB1 N44 576 bIN 545 429 410 N86 508 51 551 455 424 S950

06-081 Sr I 8.989 7.853 6.096 4.602 4.470 4.248 4.270 3.833 4.360 5.789 6.483 6.089 10.961ITO OBSI 509 618 692 bzz 537 566 634 648 b19 6D 539 54; 714

I MEAN I 36.3 34.4 43.8 47.8 54.5 60.3 64.0 64.4 '. 9 52.9 46.3 39.7 571.4

U9-11I SO I Z6S 1.194 5.871 6.147 5.709 5.914 5.836 4.37b 3.996 5.150 6.562 5.867 11.990ITOT OoSI 484 636 67U b0 489 541 607 639 596 594 483 477 6786I.. M'E8T4 I 37;:. . 37 . . 44. . 50.8 7. ;3 6.. 22..4 662. . 67.0 6..;2 . . 562. . 48.0 1. 5.... 8"

12-141 50 I 7.921 6.862 5.55U 7.171 6.893 6.735 6.775 5.44 4.897 5.228 6.770 6.324 12.23d

I fOr OPSI 548 643 711 659 537 578 646 657 648 631 567 5i 7399

15-171 SO I 8.104 b.512 5.445 7.733 7.116 6.901 6.941 5.657 5.220 5.257 6.S14 S.88u 12.21bITOT O8S1 457 608 647 608 411 520 586 615 611 568 493 467 651

I MEAN 3b.5 36.2 42.5 48.6 S4.9 60.9 64.9 64.5 6u.0 u 3.7 461 43.9 51.018-201 50 I 8.363 6.789 5.341 6.741 6.284 6.219 6.307 4.882 4.661 5.501 6.732 6.009 11.86a

ITOT OSI 564 656 71 648 515 580 661 686 .Sb 599 555 558 7389

I MEAN I 35.7 34.6 43.1 45.8 51.7 S7,8 61.4 61.6 57.5 SI.? 45.7 29.9 48.4

so-211 SD I 8.925 7.081 5.698 5.292 4.968 4.956 5.376 4.30Z 4.483 5.575 6.931 6.301 11.431TOT OS1 q70 635 £41 553 441 434 513 546 941 569 475 480 6266

I MEAN I 36.3 35.1 41.2 47.1 53.3 59.2 63.0 63.2 59.2 52.7 4b.2 40.2 49.8ALL I So I 87?41 7.452 6.181 6.362 6.436 6,274 6.327 S.5 I 5.33 5.871 6.858 6.:21 11*765

HOUpSITO! O SI 3923 4489 5319 4807 3895 4us8 4632 833 4732 4665 4061 3993 S0l?

.. . . . . . . . . .° . .° . . °. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .°.. . . . .

ULOAL CLIMATOLOGY BRANCH WET-BULB TEMPERATURES OE6 F FPOM MEANS ANU STANDARD DEVIATIONS

USAFETAC HOUPLY 3BSERVATIONS

AIR WEATHER SVRVICE/MAC

STATION NUMPER: 063253 STATION NAME: ZIERIKZE- NL PEPIOD CF RECORD: 77-87

HOURSI STATS I JAN TEA MAR APR MAY JUN JUL AUG SEP OCT 408 DEC ANN

LST I I

I MEAN I 34 5 32.1 38. 42.3 NA.0 53.9 SA.0 58.3 5.J N9.4 43.8 385 45.9DO-o2 SD I 8.831 7.511 5.755 4.436

4.4

D6

q.304 4.417 4.052 4.373 5.500 6.533 5.874 10.353

IOT OBSI 453 572 630 56b 476 428 499 533 542 543 494 470 626° ,, ., . ,* .,.. .., °. ** . o, ,° ., o *. o, .. .. ** °, , ** .* ,. * .... ..° ... o. °. o .... °° ** * ... . ° ,

I MEAN I 33.6 31.9 37.3 41.3 46.8 53.1 57.0 51.5 M4.j 48.1 43.4 37.6 45.0

uS-051 SD I 9.449 7.787 6.029 4.442 4.395 4.165 4.045 4.183 4.447 5.460 6.598 5.784 10.467

1OT OS1 432 574 611 543 428 408 485 50B 517 550 455 423 5932

I MEAN I 34.1 31.8 37.4 41.8 48.0 54.1 57.9 57.7 54.2. 48.5 42.6 38.1 45.3

IJ6-0AI sD I 8.571 7.840 5.976 4.332 4.413 4.028 4.129 3.852 4.o97 5.512 6.804 5.710 10.495iTOT 0BSI 507 614 685 619 535 566 633 648 bi7 607 539 542 7115

I MEAN I 34.9 33.1 39.0 44.2 50.0 55.9 58.6 59.1 56.3 50.4 44.2 35.3 41.4

09-1l SD I 7.933 7.195 5.106 5.048 4.739 4.766 4.760 3.966 3.841 4.801 6.433 5.639 10.731

TOT OPS 4 482 603 668 597 487 541 604 639 592 593 480 474 6760

I.MEAN. 36.0""';[ . ... 41; .. 2 45i .. 1 51; .. 4 56; .1 60;. 5 63.4 7.3 52.1 45.2 39.9 48.6

12-141 SD I 7.613 6.948 5.415 5.330 5.173 4.957 5.077 4.116 4.211 4.794 6.604 5.64a 10.457T0 OBS 543 541 708 654 536 577 645 656 647 631 567 569 7374

15-17l SD I 7.852 6.680 5.11 5.425 5.361 4.999 5.017 4.157 4.347 4.812 6.467 5.575 13.380

TOT OPS 454 599 641 603 471 519 584 612 609 568 491 463 6614..... F' ; N°°i ''i. ; . .. .q: ... .; .. .; i . .; . .; i . .; 2 . .; i . .; : . .; . .; . . .;: . ..... . 7 ;

18-201 SD I 8. 65 6.937 5.267 5.255 4.970 4.848 5,063 4.03U 4.370 5.15b 6.700 5.764 10.525

TOT 0S51 557 651 707 646 515 579 660 685 654 598 552 553 7357

I MEAN I 34.4 33.1 39.1 43.2 48.7 54.1 58.5 58.8 55.2 49.6 43.9 "36.5 46.3

21-23 sDO I 8.603 7.186 5.642 4.657 4.6S4 4.564 4.580 4.172 4. 303 5.393 6.903 5.973 10.495101 opsl 467 6(4 63? 5S0 441 43q 512 t44 537 569 475 478 6248

ALL I SD I 8.380 1.387 5.817 5.163 5.043 4.785 4.814 4.20b 4.449 5.324 6.691 5.787 10.5731OUR0 7 TOTOBSI 3895 4858 S 79O 4178 3889 4052 4622 4823 4715 4659 4053 3972 53606.... **......... ..........-- .- ......................................................................................... ° ....

*.I

GLOBAL CLIMATOLOGY BRANCH DEw-POINT TEM'LRATURES DEG F FROM MEANS AND STANDARD DEVIATIONSUSAFETAC HOURLY OBSERVATIONS


STATION NUMER8: 063250 STLTIO NAME: ZIERTK2 E NL PEPIOD OF BECORD: 77-87

...........................................................................................................................HOURS! STATS I J AN FEB MAR APR MAY JUN JUL MUG SEP Oct NOB EEC A NNLS' I I

I MEATNI 3Z.2 30.2 3b.3 319.8 45.6 S2. 1 5b.4 56.b. 53.5 4.7.8 41 .8 3b.8 N3.90-02! SD I 9.554 8.902 6.45 5.091 5.335 4.736 4b43 4.5o2 4.111 S.970 7.311 6.291 I0.RS6

1TOT oCs 453 572 630 566 476 428 499 533 542 543 494 47u 6206............................................................. ............................................................

: MEAN 1 31.4 29.5 35.6 !9.2 4.8 S1.7 S5.8 S6.2 S2.5 47.2 41.5 35.A 43.203-051 SO 1 10.032 9.012 6.713 5.195 5.294 4.561 4.372 4.628 4.7R5 5.889 7.332 6.388 11.061

lOT OBS! 432 574 b11 543 428 408 485 SOb 517 550 45 423 5932

IEAN 1 31.9 29.6 35.7 T9.5 45.7 521 56.2 56.0 52.8 47.1 40.6 36.4 43.806-081 SO I 9.179 9.068 6.771 5.082 5335 4.554 4.543 4.395 4.6R3 5.696 7.634 5.963 10.968

TOT OBS! 507 614 68A 619 535 566 633 648 617 607 539 542 7115..... .'....... '..... ... ..... .... .................. ......... .. .... .... ... .... ......... .: ..... ................... .....'

I MEAN 1 32. 7 30.5 36.5 40.7 45.7 52.4 56.5 ,751 ,3. 3 48.2 41.8 36.5 44.509-Il 5 1 3.607 V.6 1 3 6.61S 5.B31 5.850 5.152 5.063 4.151 4.749 5.291 1.235 6.133 10.93

I TOT 095! 482 603 668 597 487 541 604 639 592 593 480 4Q74 6760

I MEAN 1 33.2 31.0 31.5 39.9 45.9 52. 3 56. 3 55.8 p2.9 48.6 42.2 37.6 44.512-141 S0 I 8.775 9.123 6.845 6.281 6.S47 5.337 5.379 4.797 5.265 5.679 7.618 6.035 lo. 73u

ITOT OBS 543 641 708 654 536 577 645 656 647 631 567 569 7374

IMEAN I 32.4 31. 4 37.4 40.0 46.1 S2.4 55). 8 SS.9 53. 1 48.2 42.5 37.2 44.715-171 s0 1 9.099 9.211 6.684 6.30b 6.664 5.326 5.391 4.863 5.392 5.783 7.665 6.JS5 10.761

!TOT ORSI 4S4 599 641 603 471 519 584 612 509 S68 491 463 6614

I MEAN 32-! 31.0 37.4 40.0 46.1 52.3 S6.O 56.1 43.3 48.3 41.7 37.6 44 518-201 S ! 8.967 8.863 6.425 6I'l 5.894 5.194 5.b6 4.699 5.136 5.770 7.595 b.168 10.827

1TOT OBSI 557 651 707 646 515 579 660 685 654 598 552 553 7357

SMEANI 32.0 30.3 36.9 40.2 45.7 52.4 56.5 S6.8 53.5 47.7 I *. 36.6 44.021-231 So I 9.495 8.823 6.552 5.367 5.626 4.967 4.838 4.675 4.741 5.967 7.841 6298 l1.089

ITOT OBS! 467 604 637 SSO 441 434 512 544 537 569 475 478 624................................................. ..2.................................................................;.......I MEAN I 32.4 30.5 36.7 39.8 45.7 S2.2 56.2 56.2 S3.1 47.9 N1.7 36.9 44.2

ALL I SO I 9.195 8.970 6.677 5.713 5.858 5.009 5.036 4.679 4.962 5.799 7.549 6.149 10.913HOURSITOT OS 3895 4858 529U 477 3889 452 4b22 4823 4715 46S9 4053 3972 $3606

...........................................................................................................................

GLObAL CLIMATOLOGY BRANCH CUMULATIVE PE4CENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUMIDITYUSAFETAC FROM 40URLY OBSERVT1DONS


STATION NUMBLR: 063250 STATION NAME: ZIERIKIE- NL PERIOD OF RECORD: 78.80-8TMONTH: JAN

..... .........................................................................

MONOHI HOURS I PERCENTAGE FREOUEN:Y OF RELATIVE HUMIDITY GREATER THAN I MEAN I TOTALI (LSTII ............................................................................. IRELATIVEI NUM I

I 1 10% 201 3d2 90 50 601 70% 8U1

901 IHUMIOITYI OBS I

......................................................................................................................................

JAN I O0O02 1 100.0 100.0 100.0 IO.0 100.0 99.3 92.5 74.8 92.6 87.1 953

03-05 I o.0 lO3.n 10C.0 100.0 100.0 99.9 93.8 75.0 46.8 87.8 432

06-013 100.0 100.0 100.0 100.0 100.0 99.0 93.9 77.5 93.4 87.4 507

09-11 100.0 I00.0 IO0.0 100.0 O0.0 99.2 93.4 75.9 41.5 86.9 982

1 12-14 1 100.0 10.0 100.0 99.8 99.8 97.9 8.9 62.6 32.4 83.7 543

15-17 100.0 10.0 100.0 100.0 99.8 97.1 83.5 59.5 32.4 83.1 454

18-20 100.0 IO.0 100.0 100.0 100.0 98.2 89.6 72.9 90.9 86.0 557

21-23 100.0 100.0 100.0 100.0 100.0 99.1 90.8 73.7 46.3 86.7 967

1101ALS I 130.0 100.0 100.0 100.0 100.0 98.7 90.3 71.5 40.8 86.1 3895

......................................................................................................................................

GLOBAL CLIMATOLOGY BRANCH CUMULATIVE PE4CENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUMIDITYSUSAFETAC FROM -I0URLY OBSERVATIONS


STA71ON NUMBER: 063250 STATION NAME: ZIEROKZY N. PEQOU cr RECORD: 71-87MO4NTH: FEB

MONHJ OUR PERCENTAGE FREoUEN:Y OF RELATIVE HUMIDITY GREATER THAN I MEAN I TOTAL I

| (LSTI ..................................... •........................................ IRELATIVEI NU" I

10% 20 1U 3U% 40 Sl0 60t 70l got 90t HuMIDITyf OBS I

FEB I00-02 100.0 100.0 100.0 100.0 99.8 98.1 91.6 75.3 41.8 86.T S7;

03-05 100.0 100.0 100.0 100.0 99.8 99.3 93.2 79. 45.8 87. 579

06-0 100.0 1O0.7 100.0 100.0 100.0 99.7 94.3 83.7 51.6 88.5 619

(09-11 100.0 0D.0 100.0 100.0 99.7 97.5 91.0 76.s 91.5 86.1 6O!

12-14 100.0 100.0 100.0 98.8 96.9 88.1 70.2 51.9 / .f 78.6 641

15-17 I100.0 100.0 100.0 97.7 99.2 8.9 bb.3 91.9 2?.9 77.0 599

18-20 1 100.0 100.0 100.0 99.5 98.0 93.7 83.6 62.; 19.6 82.0 651

21-23 100.0 100.0 200.0 200.0 9.89 95.9 88.9 69.q 39.6 89.9 609

ITOVALS 1 100.0 100.0 100.0 99.5 98.3 99.5 84.8 68.2 36.6 83.8 48E5

....................................................................................................................

LOBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE FPLQUCNCY OF OCCURRENCE RELATIVE HUMIDITYUSAFETAC FROM -OURLY OBSERVATIONSAIR WEATHER SERVICE/PAC

STATION NUMBER: 063250 STATION NAME: ZICRIKZE NL PERIOD OF RECORD: TR-8TMOPJIH: MAR

(° LS°o ° I ....° .................. ,. .e °o o o, o° . °. .° .. .QEL °A°T°VE.° NUNMONTHI HOURS I PERCENTAGE FEOUENy OF RELATIVE HUMIDITY GREATER THAN 0 MEAN I TOYAL

I ILSTI |..............................................................................IRELATE.I NUR .| I IC: 2UT 3D: 40: 501 601 701 ROT 9CY IHUMIDITT1 IBS

MAR m00-02 10.0 130.0 100.0 100.0 100.0 99.4 96.7 81.9 49.4 84.5 63L

03-05 100.0 100.0 100.0 107.0 100.0 99.5 97.7 84.3 54.8 89.6 611

06-08 100.0 100.0 100.0 100.0 100.0 99.6 95.9 83.4 55.7 89.5 6A8

09-11 Iofl. 100 .7 100.0 IO.0 99.9 98.2 88.0 67.2 34.9 84.9 668

12-14 100.0 10.P 100.0 99.6 98.6 90.4 73.2 46.1 19.6 78.3 708

15-17 OO0 100.0 100.0 99.4 96.4 86.3 64.7 42.8 17.0 76.1 641

18-2D 100.0 100.0 100.0 100.0 99.7 96.5 84.9 59..3 2R.1 82.5 707

21-23 100.0 100.0 100.0 100.0 99.8 98.9 93.2 74.7 42.9 86.5 637

ITOTALS 1 '00.0 100.0 100.0 99.9 99.3 96.1 86.8 67.4 37.8 44.5 5290

i"-

GLOBAL CLIMATOLOGY BRANCH CUMULATIVF PERCENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUMIDITY

USAFETAC FROM 40UPLY OBSERVATIONS

AIR WEATHER SERVlCE/MAC

STATION NUMeER: 063250 STAIION NAME: ZIERIKZE5 NL PEPOLo OF RECORD: 7A-87

MONTH: APR

........................................................ ..... .......... ........................................... IEAIE UMONTHL HOURS 5 RCT ED GAT THA 1HMEANI OTAL

I (STI ..............................................................................IRELAT .VEI U . .I I ijut 200 301 401 501 601 705 600 QOj IHUMIOITYI 085

APR 00-02 i 100.0 0.n 100.0 100.0 99.6 97.2 88.0 64.8 32.2 84.0 Sb6

f13-05 100.0 100.0 100.0 100.0 100.0 98.7 91.5 75.5 39.6 86.4 543

06-08 100.0 lO0.t 100.0 lO.0 100.0 98.5 89.3 70.9 3A.0 85.1 619

09-11 Iuo.0 100.0 100.0 99.5 94.3 84.6 65.8 37.1 14.9 75.3 S97

12-14 I .O 99 .A 99.2 94.2 85.2 69.1 47.6 23.1 7.5 68.1 654

15-17 I10.0 IO0.C 98.3 92.5 82.6 68.3 48.9 23.4 9.1 67.7 603

18-20 100.0 100.0 100.0 96.6 91.0 78.0 61.9 35.8 10.4 73.0 646

I21-23 100.0 100.c 100.0 99.6 98.4 93.8 83.8 59.6 21.6 81.2 5sc

ITOTALS 1 100.0 100.0 99.7 97.8 93.9 86.1 72.1 48.9 21.4 77.6 477E............................................................. ................................

. . . ° ° ° ° ° ° ° ° ° °

IL-J

GLOBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUMIDITYUSA FET&C FROM -IBURLY OBSERVATIONS


STATION NUMRER: 063250 STATION NAME: ZIFRIKZE* NL PERIOD OF RECORD: 79-86

MONTH: mAY

MONTHI HOURS I PERCENTAGE FREQUEN:T OF RELATIVE HUMIDITY GREATER THAN MEAN I TOTAL

(LST) I ............................................................................. IRELATIVEI NUM I

I 11 20t

301 40% sat 60% 70% 8o 90t IHUMIOITYI 08S I

..................................................................................................................................

MAY 00-02 100.0 110.0 100.0 100.0 99.4 97.9 91.6 66.8 27.9 84.0 476

I I03-05 100.0 100.3 1310.0 100.0 99.5 98.1 94.2 77.6 38.8 86.5 42F

06-08 I100.0 100.0 100.0 100.0 99.3 97.0 90.7 66.0 2q.0 88.0 535

09-11 100.0 1[P.C 100.0 99.4 95.1 81.3 60.4 30.6 11.5 73.3 487

1 12-14 1 100.0 100." 98.7 94.8 84.0 68.7 45.7 23.9 6.7 67.7 536

h 15-17 I100.0 100.0 97.9 93.0 86.0 72.6 %9 .0 23.6 5.3 6I.1 471

I 18-20 IU00O 100.0 99.4 97.5 93. 83.5 63.1 33.9 9.1 73.6 SIS

I 21-23 I00.0 IO1.., 100.0 99.3 98.9 95.5 84.4 53.5 18.4 80.4 441

TOTALS 100.0 100.0 99.5 98.0 98.5 86.8 72.4 47.0 18.2 77.2 3889.....................................................................................................................................

GLOBAL CLIMATOLOGY BRANCH CUMULATIVE PEICENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUMIOITY

USAFETAC FROM 4OURLY OBSERVATIONS


STATION NUMBER: 063250 STATION NAME: ZIERIKZE- NL PE7IOU OF RECORD: 77-86MONTH: JUN

MONTI HOURS I PERCENTAGE FREOUEN~V OF RELATIVE HUMIDITY GREATER THAN I MEAN I TOT8L

I ILSTI I ............................................................................. IRELATIVE[ NUM I

I I Ic1

L 01 20 1U 401 501 601 71 80% 90| iHUMIDITTI OBS I

I IJUN 1 00-02 1 100.0 100.0 100.0 100.0 100.0 99.3 94.6 74.5 33.2 86.2 428

03-05 100.0 103.0 100.0 100.0 100.0 99.8 97.8 82.6 49.0 88.7 408

06-08 100.0 100.0 100.0 100.0 100.0 99.5 94.0 68.7 29.7 AS.2 5b6

09-11 100.0 100.0 100.0 100.0 98.3 91.5 70.1 33.5 8.7 75.9 541

12-14 100.0 100.0 100.0 98.4 94.3 77.6 52.0 21.1 7.6 70.7 577

15-17 100.0 100.0 100.0 99.2 93.4 75.1 48.9 20.4 7.1 70.2 519

18-20 100.0 100.0 100.0 99.8 97.1 87.6 63.4 30.1 9.0 74.3 579

21-23 )O0.0 100.0 100.0 100.0 99.8 98.6 88.9 62.2 18.4 82.5 434

ITOTALS 1 100.0 100.0 100.0 99.7 97.9 91.1 76.2 49.1 20.3 79.2 4052.. . . . . . .... . ... . . . . . . . .. ..,. . . .. . . . . . . ................,.........°.........°*,.. .

1LObAL CLIMATOLOGY BRANCH CUMULATIV( PE4CENTAGL rREOUENrY or OCCUPRENCE RELATIVE HUMIDITY

USAFETIC IRUM 4OURLY OBSERVATIONS

AIR WEATHER SEPV IC[MAL

STATION NUMBER: 0613'5 STATION NAME: ZIFRIKZEE NL p0T:00 OF RECOR-: 77-4bMONH: JUL

HONTHi. HOURS I° " tRCENTAGE r9EQUrH:Y or REL..IIVE UIIJTY GREATER THAN I MCAN I OT.L

I S11 ..... .I....................................................................... 4IA L TIVEI NUp I

I I 10 a 2I 3Ot 0% Solt bO% ut 1 90 IHUmIDIIYI OBS I

JUL O0-U2 100.0 1Ou. 0 100.0 100.0 100.0 99.1 98.2 2.7 1b. s 7.5 499

03-0S 100.0 o0.n 100.0 100.0 100.0 99.9 97.S 89.7 50.5 89.8 48'

0I -08 100.0 100 , 1O0. 0 0 100.0 000 ..6, 15.? . 1.1 96.9 63

09-11 0.0 I ou.0 100.0 100.U 99.8 93.2 72.5 35.9 11.9 77.1 604

I12-14 100.0 IO0. 100.0 99.5 95.5 78.9 51.2 19.9 4.A 10.b 69

t5-17 100.0 100.0 100.0 99.6 90.9 77.? 50.0 17.1 . 69.6 S84

18-20 100.0 100.0 100.0 9F.8 96.9 98.6 65.3 25.9 6.7 71.9 66C

21-23 I 100.0 10. 100.0 IOG.U 100.0 99.9 94.3 66.9 24.2 8.2 s1;

TOTALS I1O.0 10.n 100.0 99.6 97.8 92.1 78.2 St.? z1.? 79.9 %f22

.. ............................. ............................

GLOBAL CLIMAIOLOGY BkANCH CUMULATIVE PE4CE8AGL FREQUENCY OF OCCURRENCE RELATIVE 1UMII

USAFETAC FPO" 4OUQLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMPER: 0632S0 STATION NAME: ZIERIKIE- NL P1OIC Of RECORO: 77-86MONTH: AUG

LS251 I IR IV I : NU

IU I| L 1 ... ....... .. .....,.......,,..........., ..,.....,. .. ...... ,.... ...................... ..... ...... .....

AU, 00-0' I 1.1 10.0 200.0 100.0 100.0 99.4 96.2 83.1 39.b 87.8 533

0S-5 I IOr,.7 130 . 100.0 100.0 100.0 100.3 98.0 8., 48.6 89.2 50b

S6-U8 I100.0 100.0 100.0 100.0 200.0 99.8 96.3 76.8 39.2 87.1 bb

rig0-1I I 211.0 100~ 1 00.0 100.0 98.9 93.8 70.3 28.2 6.6 7S.4 639

12-lo 100.0 lo. I1O0.O 99.5 98.8 75.3 39.3 12.0 4.n 68.1 656

15-17 Io0.0 11)0.r IO.O 98.2 92.5 75.3 37.6 12. 3.8 67.8 bil

I8-20 I100.0 lO.1 100.0 99.9 97.8 91.1 66.3 28.S S.1 78.9 68

I21-23 I100.0 IOC.0 100.0 100.0 200.0 98.s 98.3 67.3 23.1C 88.8 588

ITOTALS 1 100.0 1oo.0 200.0 99.7 98.0 91.6 78.8 19.2 21.3 79.3 %823

. *. *. . . . . .*.*.*.. . . . . .**.. . . .'.*°***.. .*9. . . . . . *. .** . . .* . . .

.LOU AL CLIMATO0LOGY BRANCH CUMULATTVE P3!9CENTAGE FREQUENCY OF OCCURRENCE PEtAIIVE HUMIDITYUSAFI7AC FR0OM 4URLY OBSFRVATIONSAIR WtATHFR SERVICLIJMAC

STATIO NUMRER: 063250 STATI ON NAME! ZI1.RTKZEV N1 1'EPIOJ OF PLCOPD: 77-86MONTHI: SEP

L3 ...................... I9CIATTREI NUM II I 21 0 30 51 02 601 10% au? 9L" IHUIIUTY I 085

SEIP I 0-U:' I uo.0 100.0- 100.0 100.0 100.0 99.9 96.7 82.3 4SS.2 88.3 S5i

I 01-05 103.0 l03).'7 100.0 100.0 100.0 100.3 96.3 79.7 43.9 88.2 517

3 6-CR 1 3i0.0 100. 0 100.0 100.0 100.0 99.9 97.1 82.0 47.7 88.6 617

ng0-11 l 30.0 lOJ.fl 300.0 ic1C.o 99.8 9S.9 80.9 42.2 16,.4 19.4 59i

312-14 I 3o.0 1001 1.0 99.8 96.4 80.5 47.9 19.3 5.9 70.7 647

1 5-3 7 uo.0 100. 0 330.0 99. 7 95.8 76.2 56.8 19. 7 7.5 70.2 605

Id1-ZO 100-j0 103.1 C 200.0 100.0 99.7 95.8 79.1 43. 3 14.? 79.31 654

I -23 I 'o.0 10. f 100.0 300.0 100.0 99.3 95.2 75.0 37.8 86.5 S37

TOTALS5 1 00.0 300.0 r 200.0 99.9 98.9 93.5 80.0 55.14 27. 3 81.4 5715

4 .. ............................ ............................

ULOBAL CLIMAIOLOGY BRANCH CUMULATIVE PEICENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUMIDITYUSaFETAC FROM FOURLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: U63251 STATION NAME: ZIFRTKZE- NL PE1900 OF RECOR0: 77,79-86tMONTH: OCT

MON HI'HOURS .I 0R"'SPL, P C' NT*A'E FEC'UEN OF'RELATIVE HU.M.IDIY RATL THAN "MEAN' I.TOTLI LSI) I ............................................................................. IRELATTVEI NUM I

I lot 20% 3ut Rot 50% 60t 701 ot 90t IHUMIOITYI OBS I. . .. . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .................. .... .. . ....... ...

OCT 00-0? luo.0 103.0 100.O 100.0 100.0 99.3 94.1 80.8 47.5 88. 543

01-U5 100.0 100°0 100.0 I10.o 130.0 100.3 94.4 82.1 50.8 88.5 551

06-08 I13.n lOO.1 100.0 30.O 100.0 99.8 90.9 81.7 5T.7 89.1 607

I 9-Il lo.0 1O0.' 13o.0 100.0 100.0 99.3 91.4 66.3 29.8 84.6 59?

I-14 100.i 100.0 100.0 100.0 99.8 93.3 68.9 32.q 14.3 ?6.7 631

I5-17 I o0.O 100.9 100.0 99.8 99.6 93.7 68.3 36.1 12.3 76.4 56E

18-20 lO.o 10C.0 100.0 10O0. 100.0 98.3 89.6 68.0 28.9 83.8 598

I21-23 1 OO.1 100.0 100.0 100.0 100.0 98.q 93.5 76.4 39.2 86.6 56

ITOTALS I UO. IC .0 100.0 100.0 99.9 97. 86.9 65.1 34.5 84.3 4659

.. .. ... . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .

i

GLOPAL CLIMATOLOGY BRANCH CUMULATIVE PECENTAGE FREQUENCY OF OCCURRENCE RELATIVE HUMIDITYUSAFETAC FROM 4OURLY OBSERVATIONSAIR .tAIHER SERVICL/MAC

STATION NUMBER: 063,15 STATION NAME: ZIERIZ[E NL PERID00 OF RECORD: 77,79-86

MONTH: NOV

MONTHI HOURS I FERCENTAGE FT7E~uEtd:T OF RELATIVE HUMIDITY GEATEP THAN I MEAN I TOTAL(LWI I .IELATIVE: NUM

S L5 I [................................................................................... ..... ..... .....I LiT JO? 00 905 505 NOT 701 Aut YUg IHIUMIDIOTI ODAY

NOV nO-02 )o1.c 10.0 1007.0 100.0 100.0 98.6 Y1.3 75. 41.3 86.7 49

113-05 IO0.O I1j.O 100.0 IO.0 1O0.O 98.? 99.1 77.6 4.6 87.5 455

06-ON I 1 00.110. 100.O IO.O 100.0 98.7 91.5 78.7 44.q 86.9 536

09-1I 100,l IU0.0 100.0 Ic.0 100.0 99.2 91.0 66.3 32.1 8.6 480

I12-I IO.0 CC. 1 00.0 100. 0 100.0 Q6.. AS.7 4q.6 2r.6 80.6 S67

I,-17 IUO.7 0iJ.C 100.0 TIC.a 99.8 96.3 80.0 99.1 17.1 80.3 491

18-20 100.0 100., IUO.O 100.0 100.0 98.9 89.9 68.1 31.3 8.7 55;

2 1-.13 100. 1 O3.0 IO.O 100.9 100.0 99.7 89.5 73. 37.7 86.0 97!

TOTALS I O. 101. 1 O.O lo0.0 100.0 98.? 88.6 67.' ('.7 84.7 9053

....

LOUVAL CLIMATOLOGY RPANCH CUMULATIVE PE4CENTAGE FR(OUENCY OF OCCUPRENCE RELATIVE HUMIDITY

USAFETAC FPOM 4OURLY OBSERVATIONS


STATION NUMPER: 0N3259 STATION NAME: ZIrRIKZEU NL PEPlIOD OF RECOPD: 77-8bMONT: DEC

MONTHI HOURS I PERCENTAGE FEU[N: OF RELATIVE HUMIDITY GREATER THAN I MEAN TI OTAL

I (151 I ............................................................................. I.ELATIVEI NUO . .I I IIt 205 lut ACt 50? 600 700 RI? 93I IHUMIDITYI OAS

DEC OU-j? I 007.O 103.0 100.0 100.0 100.0 99.6 95.7 89.5 50.6 88.9 471

I03-u0 lo.3 loo.1 100.0 100.0 100.0 99.9 95.5 83.2 5').8 88.8 423

yb-Es I UO.3 100. 1 UO.0 100.0 100.0 100.3 96.S 82,. 59.1 89.9 54

n q-l I 1,0.1 133.0 I0.0 100.0 100.0 99.9 96.0 RT. 50.9 88.7 974

1 2- 1 l 1 0 .0 000.0 100.(0 99.8 99.3 93.3 71.4 3f.2 85.9 569

I s-17 ]JO.3 I n-0 100.0 loC.0 100.0 99.6 92.4 70.5 38.9 85.9 b3

18-2o' I0.i loo.P 100.0 100.0 100.0 99.8 95.5 83.9 47.9 88.1 05!

21-23 I 100.3 10J.° 100.0 100.0 100.0 99.8 9.0 80.3 99.8 88.7 476

ITOTALS I 'JO. 10 .0 a t. 0 100.0 100.0 99.7 95.0 79.7 47.4 88.0 3972

.. .. ... .. ... .. ... ... .. ... .. ... .. ... ... .. ... .. ... .. ... ... .. ... .. ... .. ... .

GLOBAL CLIMATOLOGY BRANCH CUMULATIVF PELECNTAGE FREQUENCY OF OCCUR ENCE RELATIVE HUMIDITY

USAFETAC FROM 40URLY OBSERVATIONSAIR WEATHER S[RVlCE/MAC

STATION NUMBER: 063251 STATION NAME: ZIERIK7EE NL PEPIOD OF RECORD: 77-87ONIH: ALL

o~oo o~o ~ o.** ~ o*,... . o. .o.. .,.. ,.°. o.. ,°.* ,.o. ,.,o .,.. °o° .°.. ,..o o,,.....o., ,.,..... .........,.

MDNTHg HOURS I PERCENTAGE FREOUEN:y OF RELAIVE HUMIDITY GREAT[ THAN I MEAN I TOTAL

(ILSl I............................................................................. IRFLATIVEI NU

I I juG 201 30 Not sOt 60t 70 80t 9Or IHUMIDITYI 0AS

I IJAN ALL 100.0 1OU.) 100.0 107.U 100.0 98.7 9D.3 71.5 4n.; 86.1 0895

FEB I 100.0 I0T.n 100.O 99.5 98.3 98.5 84.8 68.2 3f.6 .838 4856

MAR I 100.0 , 100 .1 IUU.D 99.9 99.3 96.1 86.8 67.4 37.A 84.5 529C

APR 100.0 100O. 99.7 97.8 93.9 86.3 72.1 48.Q 21.4 77.6 477F

MAY I Ioo.0 100.n 99.5 98.0 94.5 B6.8 72.8 47.2 IR.2 77.2 3p8A

JUN I0.3 103.P 100.0 99.7 97.9 91.1 76.2 49.1 2n.3 74.2 '052

JUL 13C.0 100.0 IU0.D 99.6 97.e 92.1 78.2 51.? 21.2 79.9 4622

AUG I 100.0 o.0 100.0 99.7 98.0 91.6 74.8 49.2 21.3 79.3 4423

SEP I10.0 100.0 100.0 99.9 98.9 93.4 9C.0 55.4 27.3 81.4 4715

OCT I 1 Io0.0 TO.0 100.0 100.0 99.9 97.7 oG.9 65.1 34.5 84.3 4655

1 fNOV I100.0 133.1 100.0 100.0 100.0 98.z 68.6 67.3 37 .7 84. 7 4053

DEC 0lo.o 100.0 100.0 101.0 100.0 99.7 95.0 79.7 47.4 88.0 3972

ITOTALS I 100.0 100.0 99.9 99.5 98.2 93.8 A2.2 60.0 30).0 82.2 53606

.. .. .. .. ... .. .. ... .. .. ... .. .. ... .. .. ... .. .. .. ... .. .. ... .. .. ... .. .. ... .. .L.

i

EXTREME MAXIMUM AND MINIMUM VALUESDATA ERIVED FROM SUMMARY OF UAY DATA.

PRESENTED ARE THE HIGHFST fLOwESTI TEMPERATURE FOR THE MONTH FOR EACH YEAR.

ALSO PRESENTED ARE STATISTICAL VALUES WITH THE SAME LIMITATIONS MENTIONED ABOT[.

AN ASIERIST INDICATES AN INCOMPLETE MONTI.

-'4,, U

_1L

, GLOBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE OF OCCURRENCE OF MAXIMUM TEMPERATURES

USAFETAC FROM SUMMARY OF DAY DATA


STATION NUMBER: 063250 STATION NAME: ZIERIKZEE NL PERIOD OF RECORD: 77-78. 80-87

..................................................................................................................................

IMPIFII JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL

..........................................................................................................................................GE 851 .5 2.1 .9 .3

GE Sol .5 3.9 10.3 9.3 .8 .7

GE 7S1 .4 9.3 10.8 20.2 17.3 9.5 .9 5.0

GE 701 4.3 9.1 22.5 31.3 92.4 17.1 2.1 11.6

GE 651 8.1 21.9 12.2 62.2 72.5 91.9 8.1 22.1

GE 601 2.2 I1.8 37.9 73.5 92.7 97.3 89.1 32.3 3.6 37.9

GE 551 8.5 36.3 7S.% 95.1 100.0 100.0 99.6 69.4 27.9 1.0 51.6

GE 501 9.5 7.91 25.6 63.7 96.3 100.0 100.0 95.7 58.9 19.0 69.0

GE 451 29.4 26.3 65.6 89.3 100.0 99.1 85.8 96.0 78.7

GE 901 60.2 97.7 90.7 99.1 100.0 92.9 73.5 88.9

GE 351 80.1 79.1 98.1 100.0 98.0 92.5 95.3

GE 301 84.6 93.9 99.6 100.0 98.5 98.1

GE 251 91.0 97.9 100.0 99.5 99.1

GE 2ol 97.5 100.0 100.0 99.8

GE 151 99.5 100.0

GE 101 100.0 100.0

MEAN I 39.5 39.3 96.3 52.9 59.2 69.S 68.9 68.9 69.5 57.9 50.3 93.2 59.5

So I 8.156 6.791 5.553 7.679 7.029 6.980 7.193 5.597 9.890 5.379 6.378 5.782 12.310

TOTAL 0BS I 201 293 270 239 187 209 233 255 296 235 197 200 2705

.......................................... e.........l..........................................................................

GLOBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE OF OCCURRENCE OF MINIMUW TEMPERAIURES

USAFETAC FROM SUMMARY OF DAY DATA


STATION NUMBER: 063250 STATION NAME: ZIERIKZEE NL PERIOD OF RECORD: 77-76. 80-87oe o * e . o ~ . I... ... ~~oee. .. . .. ... ... ......

IEMP(FIi JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL

GE 51 5.6 2.0 .4 .7GE 601 1.1 8. 29.6 9.0 7.7 2.1 6.9GE 551 .4 4.8 3.6 79.4 81.2 66.0 A.9 1.0 23.4

GE Sol 1.5 3. 1 33.7 86-2 96.7 96.4 86.6 67.7 15.7 60.6

GE 451 1.5 1.6 10.6 27.8 79.7 100.0 100.0 99.6 97.6 76.6 65.7 10.0 56.5GE 401 20.4 16.8 31.9 66.2 97.3 100.0 100.0 90.6 70.6 35.0 68.8GE 3SI 51.7 36.2 69.6 96.2 99.5 98.3 85.8 63.0 83.6GE 331 66.7 47.7 80.7 97.9 100.0 99.6 89.6 75.0 87.9

GE 301 75.6 62.1 89.3 99.6 100.0 9s.6 86.0 92.5

GE 251 82.1 83.1 97.6 100.0 99.5 97.S 96.7GE 201 86.1 92.6 100.0 100.0 99.0 98.2

GE 1S| 96.5 97.9 100.0 99.6GE 101 99.0 100.0 99.9GE SI 100.0 100.0

MEAN | 32.1 11.6 31.1 61 1 61.6 56.0 51.7 57.6 56.2 68.2 62.7 36.6 4S.1

SO I 8.626 7.393 5.720 %.369 6.167 3.650 6.069 3.763 6.304 5.6B6 6.665 6.1S9 10.769TOTAL 06S I 201 263 270 236 187 206 233 2SS 266 235 197 200 2705

...... e.................................e.....................................................................................L

GLOBAL CLIMATOLOGY BRANCH CUMULATIVE PERCENTAGE OF OCCURRENCE OF MEAN TPMPERATURES

USAFETAC FROM SUMMARY Of OAT DAlAAIR WEATHER SERAICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEE NL PERIOO Of RECORO: 77-TB, 80-87

TEMPIF1I JAN FE8 MAR APR MAY JUN JUL AUG SEP OCT NOW DEC ANNUAL

GE 7SI $-0 .4 .3

GE 701 .5 .9 15.9 8.2 .8 2.6

GE 65l .8 3.2 11.2 38.8 39.2 11.0 2.1 9.8

GE 601 2.1 12.8 81.1 75.1 5.5 58.5 8.5 24.8

GE 551 1.1 9.8 a 1.7 86.3 91.9 99.2 AS.2

43. 9.6 80.6

GE sol .5 8.9 32.1 81.3 99.0 100.0 100.0 1110.0 78.9 36.5 2.0 53.2GE 8S 11.9 11.5 28.5 68.8 95.8 100.0 98.9 66.0 26.0 67.2GE 01 2.3 30.9 71.5 95.7 100.0 99.1 86.3 58.0 82.1

GE 351 78.1 56.8 93.0 99.1 100.0 98.8 62.5 91.7

GE 301 80.6 80.? 91.8 t00.c 100.0 9b.5 96.3

GE 25, 85.6 93.81 100.0 99.0 98.3GE 291 98.0 99.6 100.0 99.5

GE 151 99.5 100.0 100.0BE 101 100.0 100.0

MEAN I 36.8 35.6 82.0 87.6 53.8 59.6 63.3 63.6 59.6 53.1 86.8 80.2 50.1

SO 8.318 6.807 5.290 5.%91 5.093 8.980 S.290 8.008 3.988 5.123 6.823 5.788 11.318

TOTAL 085 j 201 283 270 238 187 208 233 255 286 235 197 200 2705.. . .. . .. . . .. . ...e. .............. ~..........°. o e .6 e . , e ..... . .. .. ............ o,... ..... o........................,.

* L

GLOBAL CLIMAIOLOGY BRANCH EXTREME VALUES OF MARIM4UM TEMPERATURE

USAFETAC (FROM DAILY OBSERVATIONS)


STATION NUMBER: 063250 STATION NAME: ZIERIRZEE NL PEPIOO OF PECORO: 77-81

.......................................... ..............................................................................................WHOLE DEGREES FAHRENHEIT

I -M-O -8-I-H-S- ALL

YEAR j JAN FEB MAR APR MAy JUN JUL AUG SEP OCT NOV DEC MONIHS.. .. . . .. . . . . .. . . .. . .. . . .. . . . . . . ................................................ ...77; , " ; ;..... .. " ... 6 63 " ;

77 I8 *B1 6B 73 *72 066 063 *55r7 8 4 *6 54 *55 *63 *81 081 *88 O77 *6m798 5% 57 72 75 79 82 8 75 63 57 59

81 98 So 63 70 79 70 *$I 8? 7S 66 59 %8 8282 I q6 53 *63 *66 .68 *12 *88 *as *8 67 67 *57 *8

83 O*5 51 55 69 79 *00 86 89 71 77 60 e55 86

89 53 99 *51 *7 *63 76 *8 89 76 63 06% 050 *e

85 045 *48 53 *68 *79 79 76 *7786 I 38 38 6t 5Q 16 66 *65 *17 067 68 *59 54 Rb

87 7 *50 56 76

MEN 9.3 *88 7. 6.2 760 8. 8. 82.0 79.6 67.3 59.5 52.0S.D. 5.565 3.782 6.723 2.160 6.SSI 2.121 2.074 5.369 2.08?

07AL CBS | 203 243 270 239 187 209 253 255 7405 235 197 200 270S

NOTES * (BASED ON LESS THAN FULL -ONTHS10 (AT LEAST ONE DAY LESS THAN 2*4 0853

0

GLOBAL CLIMATOLOGY BRANCH EXTREME VALUES OF MINIMUM TEMPERATURE

USAFETAC IFRoM DAILV OBSERVATIONS)AIR WEATHER SERVICE/MAC

STATION NUMBER: 063250 STATION NAME: ZIERIKZEE ML PERIOD OF 9ECORO: 11-SI

WHOLE DEREES FAHRENHEIT

i-M-O -- H-S- ALLYEAR JAN FEB wAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTHS

50 *0 *55 *53 *3 *43 *28 021

78 *10 *19 .36 *36 053 050 054 *2 *50

19so 30 27 32 39 4B s0 56 *s 36 z 2Sal 30 23 32 32 35 56 *50 s0 4R 39 30 16 16

82 #is Z6 *29 .33 *51 *8 0SS *57 *56 53 35 *30 *15

*12 23 33 35 5 51 51 52 4 32 2? *27 228943 27 21 126 .35 *39 .7 4eO 53 *6 50 *52 *33 2455 *9 *12 zB 053 *55 52 41 *33

86 *34 13 22 28 42 55 *59 *50 *.? 55 *2 1

81 9 *19 z2 30

.............................................................................................MEAN I 22.0 21.2 27.3 33.0 39.5 56.5 50.5 50.6 56. 15.1 ?80 23.0

5.0. I 6.636 5.719 3.512 5.359 1.291 2.793 1.T0S .17?9 5.3IS

TOTAL 065 701 243 270 ?34 Is7 205 233 255 7*6 235 191 200 2705

NOTES * iBASED O LESS THAN FULL MONIHSI5 tAT LEAST ONE OAT LESS THAN z OB51

a - - .--.-

SUMMARhIZED BY fHF TAN 'AHL 3 -,OUP I IPI 6?OUPS 14T MONTH, MONTHLY AND ANNUAL I RAtL YEARS COMRIPAUI.

P.4ESrNIIo ARE rHr *HtA%' , S.TANLARl Of W At] DNS AND ORSERVATI ON COUNTS.

,E A LF V1 L- PPE S$UP r - U-MA~If

SUMMARIZED BY Illf 'riANrArlo I-HOUR TI"T 640UPS BY MONTH, MONTHLY ANO ANNUALLY LAIL VUiLL' CO-PINOT).

PIrSrNlTO ART yHI MEAN'. STANDARD IriVIATIGNS AND OBTSERVATION COUN1' .

U194*1 (LIM8301067 411696 '.(A 11910 P9166UR1 IN 04P 16190"N"AN 4166 A9 I7%h1 0<1I10N6

AIR IITA7H? 6(1191I/IMA(

S ItIIION 6099111: 3," 0 12% Slt 1T0I ON AMI II 2 9K ?I 91 %L I',o rot iR0: '7 ?

L S II

01 SO0 112S946 1(. 662 12.19S 9 .69G 7.722 6 .1R9 5.98A .47th 8. 1. 1 191 1 1L 14..617 1t 6oI 0 16 £0 ZIL 229 21 191 £69 1III 111 ' 1q9 v9 9 7~

C ~ ~ ~ ~ ~ t 19;: ' ':b I ;267 10 76 1290 9.1 7.20.6 .9 .6 .! .7 tI:I.- l'?10 7P~ 16£ 7 1 40 .70 11 189 II .', I,?"b.1 1 C .9 1 1 18 4 1 l9: 1 S

C ~~ e 0 " s I 1019. 10 . 10s . 11.2 01. 1 11 1 6 ist. II., 11.1 179 1I~ KI.

1' I oP I , l.73 116V, £212'. 9.9137 775 6.977 6 .1616 6 .29 '.7 113 11.67?I 14.6 b4 1*

Ii Z .' I i H20 10. 726% Ii2.Clot 9. 31 6b. 1671 6.826 6 .46 65. 960 1.n 1. 011% 1 1 .26 19. b1 It.7110 0fo 1 lbs I£4? 6 216 21;0 166, 169 17 1 9 1s 10 I" £67. .

1I 5 6fl b 126 1. 19 7 12. 151 9.914o 8. 129 6 .771 6.156 t 6.76 q. 11.62. 1 .19 I S .7' 1 1 10

I11 096 %I24S 6 210 29 16 23 202 29 294, 7 2i1 26 ~I *119 I 116.7 319.91312. 13166 101.2 106.7 01. 1 016. I It."11. ;I. I'? 1.

I1 6 13.999 11.91 1?.11 9.276b 7.191 6.7910 6 .269 6.636 R9.266, 11S"21 1 1. 12 1 I'.tt I.c29toaI 0"s61 19.; 191 3 l 196 369 169 191 20C. Q'L IF Ij b> 3 1

IMAN I 11. 31911. OS!132611. t. 06111. 36611. 3t 11..n) I %7 1132 II2 11 .891 9.269 7.690 6.616 S.992 s6.47 q I 226 11.90 1 1. 4.111 I1 .9 12.'

11o1 0669f 277 21e 297 PI 206 206 232 29 7 22 2 76,

I SO U1.7 5U., 11.761 9 .606 7.56s 6.966 6.1073 6.71,1 4 .197T 11.96 1 1.6 So' 1A I I.I9I 6I1 OrI 169 217 2 19 lFS 1t1 1391 £6 17s Ib 9 5 16 4 ,6

ALL I .0 I 11.U01 11. 19 12.076 9.929 7.810 6.727 6.199 6.9s19 4.991 1 1 .426. I 1. 31 1 . 396 I7.1

.001161107 01161 1996 1696 2610 2720 19126 1166 1616 2668i It'S £616 161% I613 IQL093

.. ...................4 .. .................... ...................

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AD-A183 267 AT *1 1/3A V · 3. Sm S Sep 78 Jan 60 Same Same Save N/A 0-7 4. Same Same rob an Har 69 Sam Sae Sam :/A 15-30 Closed most S. Same Sam" Aprt OS Jan SS Same Sam Sam N/A