SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

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Tropical Cyclone Advisory (TCA)

Kazuhiko NagataJapan Meteorological Agency (JMA)

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

Tropical cyclones cause adverse meteorological conditions such as strong winds, FRQ CB, areas of low pressure and storm surges.

When a tropical cyclone approaches aerodromes or flight enroutes, flights are often canceled or delayed because routes, take-off times and other variables need to be adjusted accordingly.

Impact on Aircraft Operations

Appropriate information on tropical cyclones is therefore necessary for the safety and efficiency of aircraft operations.

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

TCAC - DefinitionTCAC: Tropical Cyclone Advisory Center

ICAO ANNEX 3 1.1Tropical cyclone advisory centre(TCAC). A meteorological centredesignated by regional air navigation agreement to provide advisory information to meteorological watch offices, world area forecast centresand international OPMET databanks regarding the position, forecast direction and speed of movement, central pressure and maximum surface wind of tropical cyclones.

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

in short: A meteorological center providing advisory information for TC SIGMET (TropicalCyclone Advisories, or: TCAs) to Meteorological Watch Offices, WAFCs and OPMET (Operational aeronautical Meteorological) Data Centers.

TCAC - Definition

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

TCAC - Area of ResponsibilitySix RSMCs (for tropical cyclones) and TCWC Darwin are designated as ICAO TCACs.

ICAO APAC ANP http://www.icao.int/APAC/Pages/edocs.aspx

(RSMC : Regional Specialized Meteorological Center)

SIGMET workshop Tokyo 2016, 28 June 2016 @ TokyoTCAC TokyoRSMC Tokyo began providing ICAO TCAC services in 1993.

60N

0N100E 180E

Area of Responsibility

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

25.6/year

（1981-2010）

10.1/year

3.0/year

4.4/year

16.4/year

from Wikipediahttp://en.wikipedia.org/wiki/Tropical_cyclone

RSMC Tokyo’s area of responsibility

Tropical Cyclones 1945 - 2016

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

TCA (Tropical Cyclone Advisory)

Advisory information for TC SIGMETTCAs contain TC analysis and forecast information (+6, 12, 18, 24 hours)

Updated every six hours or as necessary.Text and graphical format

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

TCA – ANNEX 3 SARPs

7.1.4 (Recommendation) SIGMET messages concerning volcanic ash cloud and tropical cyclones should be based on advisory information provided by VAACs and TCACs, respectively, designated by regional air navigation agreement.

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

TCA – ANNEX 3 SARPsAPPENDIX 25.1.1 The advisory information on tropical cyclones shall be issued for tropical cyclones when the maximum of the 10-minute mean surface wind speed is expected to reach or exceed 17 m/s (34 kt) during the period covered by the advisory.

5.1.2 The advisory information on tropical cyclones shall be in accordance with the template shown in Table A2-2.

5.1.3 Recommendation.The tropical cyclone advisory information listed in Table A2-2, when prepared in graphical format, should be as specified in Appendix 1 and issued using:a) the portable network graphics (PNG) format; orb) the BUFR code form, when exchanged in binary format.Note.? The BUFR code form is contained in WMO Publication No. 306, Manual on Codes, Volume I.2, Part B -Binary Codes.

text format

graphical format

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

FKPQ30 RJTD 190600

TC ADVISORYDTG: 20151019/0600ZTCAC: TOKYOTC: KOPPUNR: 27PSN: N1755 E11950MOV: N 08KTC: 980HPAMAX WIND: 55KTFCST PSN +6HR: 19/1200Z N1810 E12005FCST MAX WIND +6HR: 55KTFCST PSN +12HR: 19/1800Z N1820 E12020FCST MAX WIND +12HR: 50KTFCST PSN +18HR: 20/0000Z N1825 E12030FCST MAX WIND +18HR: 50KTFCST PSN +24HR: 20/0600Z N1835 E12040FCST MAX WIND +24HR: 45KTRMK: NILNXT MSG: 20151019/1200Z =

TCA - text format

Text TCAs are provided via AFTN (Aeronautical Fixed Telecommunication Network).The WMO header of text TCAs provided by TCAC Tokyo is FKPQ30-35 RJTD.

SIGMET workshop Tokyo 2016, 28 June 2016 @ TokyoTCA - graphical formatTCAC Tokyo began providing graphical-format TCAs on 26th Aug. 2015.

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

TCAs in graphical format (TCGs) contain data on gale-force wind areas and FRQ CB (frequent cumulonimbus with little or no separation) area/cloud top height in addition to the information included in text-format TCAs. In TCGs, the following are classified as FRQ CB associated with a tropical cyclone:

a) CB within a gale-force wind areab) CB outside a gale-force wind area but connected to CB grids within onec) CB covering a wide area (approx. 100 x 100 km)

When a TCA is issued for a tropical cyclone expected to reach tropical storm intensity within 24 hours, information on the gale-force wind area is not provided. In such cases, information on FRQ CB areas near the center (within a 160-km radius) of the tropical cyclone is provided.

TCA - graphical format

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

Graphical TCAs are provided via the TCAC website

Manual of Aeronautical Meteorological Practice (ICAO Doc. 8896)4.3.4.4 The ICAO AFTN which in principle should be used to exchange OPMET information cannot accommodate graphical advisories. Therefore, the TCAC and VAAC are expected to make their graphical advisories available through their public Internet websites.

TCA - graphical format

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

TCAC Tokyo Website

http://www.data.jma.go.jp/fcd/tca/data/index.html

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

RSMC Tokyo – Typhoon Center

Provision of a variety of products online- RSMC Tokyo - Typhoon Center Website

Dissemination of RSMC products via GTS- RSMC Tropical Cyclone Advisory- SAREP- RSMC Guidance for Forecast - RSMC Prognostic Reasoning- RSMC Tropical Cyclone Best Track- Tropical Cyclone Advisory for SIGMET (via AFTN)

http://www.jma.go.jp/jma/jma-eng/jma-center/rsmc-hp-pub-eg/RSMC_HP.htm

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

RSMC Products – TC AdvisoryRSMC TC advisory (WTPQ20-25) for 3-day forecastsIssued within 50 minutes of 00, 06, 12, 18 UTC observation times

WTPQ20 RJTD 190600RSMC TROPICAL CYCLONE ADVISORYNAME STS 1524 KOPPU (1524) ANALYSISPSTN 190600UTC 17.9N 119.8E FAIRMOVE N 08KTPRES 980HPAMXWD 055KTGUST 080KT50KT 30NM30KT 240NM NORTH 180NM SOUTHFORECAST24HF 200600UTC 18.6N 120.7E 85NM 70%MOVE NE SLOWLYPRES 990HPAMXWD 045KTGUST 065KT48HF 210600UTC 19.2N 121.7E 160NM 70%MOVE ENE SLOWLYPRES 992HPAMXWD 045KTGUST 065KT72HF 220600UTC 20.1N 122.3E 220NM 70%MOVE NNE SLOWLYPRES 992HPAMXWD 045KTGUST 065KT =

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

RSMC Products – TC AdvisoryRSMC TC advisory (WTPQ50-55) for 5-day track forecastsIssued within 90 minutes

of 00, 06, 12, 18 UTC observation

times

WTPQ50 RJTD 190600RSMC TROPICAL CYCLONE ADVISORYNAME STS 1524 KOPPU (1524)ANALYSISPSTN 190600UTC 17.9N 119.8E FAIRMOVE N 08KTPRES 980HPAMXWD 055KTGUST 080KT50KT 30NM30KT 240NM NORTH 180NM SOUTHFORECAST24HF 200600UTC 18.6N 120.7E 85NM 70%MOVE NE SLOWLYPRES 990HPAMXWD 045KTGUST 065KT48HF 210600UTC 19.2N 121.7E 160NM 70%MOVE ENE SLOWLYPRES 992HPAMXWD 045KTGUST 065KT72HF 220600UTC 20.1N 122.3E 220NM 70%MOVE NNE SLOWLYPRES 992HPAMXWD 045KTGUST 065KT96HF 230600UTC 21.7N 122.3E 240NM 70%MOVE N SLOWLY120HF 240600UTC 23.7N 122.3E 300NM 70%MOVE N SLOWLY =

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

RSMC Tokyo - Typhoon Center Website

http://www.jma.go.jp/jma/jma-eng/jma-center/rsmc-hp-pub-eg/RSMC_HP.htm

SIGMET workshop Tokyo 2016, 28 June 2016 @ Tokyo

Thank you