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Date Level (m) Flow (m3/s) OPG Forecast Forecast issued on: 3/27/20203/20/2020 174.12 527.93/21/2020 174.04 499.03/22/2020 174.10 482.73/23/2020 174.08 502.63/24/2020 174.09 492.73/25/2020 174.09 501.53/26/2020 174.10 515.3
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Otto Holden GS Level 2020
The drawdown at Otto Holden GS is complete. Inflows and outflows are expected to
remain steady this week. The headwater will remain between 174.00 m and 174.20 m
until the beginning of spring in the region.
173.50
174.00
174.50
175.00
175.50
176.00
176.50
177.00
177.50
178.00
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly A
vera
ge L
evel
(m
)
Operating Limits Median 2019 Elevation 2020 Elevation
Date Level (m) Flow (m3/s) OPG Forecast Forecast issued on: 3/27/20203/20/2020 174.12 527.93/21/2020 174.04 499.03/22/2020 174.10 482.73/23/2020 174.08 502.63/24/2020 174.09 492.73/25/2020 174.09 501.53/26/2020 174.10 515.3
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Otto Holden GS Flow 2020
The drawdown at Otto Holden GS is complete. Inflows and outflows are expected to
remain steady this week. The headwater will remain between 174.00 m and 174.20 m
until the beginning of spring in the region.
0.0
500.0
1000.0
1500.0
2000.0
2500.0
3000.0
3500.0
4000.0
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly F
low
(m
3 /s)
Median 2019 Flow 2020 Flow
Date Level (m) OPG Forecast Forecast issued on: 3/27/20203/20/2020 151.233/21/2020 151.213/22/2020 151.153/23/2020 151.213/24/2020 151.173/25/2020 151.163/26/2020 151.08
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Ottawa River at Mattawa Level 2020
Expect the water level at Mattawa to fluctuate up to 45 cm a day.
149.00
150.00
151.00
152.00
153.00
154.00
155.00
156.00
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly A
vera
ge L
evel
(m
)
Median 2019 Elevation 2020 Elevation
Date Level (m) Flow (m3/s) OPG Forecast Forecast issued on: 3/27/20203/20/2020 149.66 731.83/21/2020 149.54 687.73/22/2020 149.53 606.33/23/2020 149.53 656.83/24/2020 149.52 624.73/25/2020 149.49 643.33/26/2020 149.52 671.8
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Des Joachims GS Level 2020
The drawdown at Des Joachims is complete. The water level will be held steady around
149.50 m until the beginning of spring in the region.
149.00
149.50
150.00
150.50
151.00
151.50
152.00
152.50
153.00
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly A
vera
ge L
evel
(m
)
Operating Limits Median 2019 Elevation 2020 Elevation
Date Level (m) Flow (m3/s) OPG Forecast Forecast issued on: 3/27/20203/20/2020 149.66 731.83/21/2020 149.54 687.73/22/2020 149.53 606.33/23/2020 149.53 656.83/24/2020 149.52 624.73/25/2020 149.49 643.33/26/2020 149.52 671.8
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Des Joachims GS Flow 2020
The drawdown at Des Joachims is complete. The water level will be held steady around
149.50 m until the beginning of spring in the region.
0.0
500.0
1000.0
1500.0
2000.0
2500.0
3000.0
3500.0
4000.0
4500.0
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly F
low
(m
3 /s)
Median 2019 Flow 2020 Flow
Date Level (m) OPG Forecast Forecast issued on: 3/27/20203/20/2020 111.443/21/2020 111.473/22/2020 111.433/23/2020 111.433/24/2020 111.423/25/2020 111.423/26/2020 111.42
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Ottawa River at Pembroke Level 2020
Expect water level to fluctuate up to 10 cm a day.
110.50
111.00
111.50
112.00
112.50
113.00
113.50
114.00
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly A
vera
ge L
evel
(m
)
Median 2019 Elevation 2020 Elevation
Date Level (m) Flow (m3/s) OPG Forecast Forecast issued on: 3/27/20203/20/2020 86.05 973.83/21/2020 86.27 977.13/22/2020 86.24 1068.53/23/2020 85.87 1038.03/24/2020 85.69 990.13/25/2020 85.62 1054.63/26/2020 85.52 1004.2
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Chenaux GS Level 2020
A total of 20-30 mm of rain are forecast for the region through Monday. Water flows at
Chenaux GS are expected to increase 200-300 m3/s by early next week in response to
this rain event and increased snowmelt as temperatures warm. The headwater level will
remain between 85.30 m and 86.50 m.
84.50
85.00
85.50
86.00
86.50
87.00
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly A
verg
e Le
vel (
m)
Operating Limits Median 2019 Elevation 2020 Elevation
Date Level (m) Flow (m3/s) OPG Forecast Forecast issued on: 3/27/20203/20/2020 86.05 973.83/21/2020 86.27 977.13/22/2020 86.24 1068.53/23/2020 85.87 1038.03/24/2020 85.69 990.13/25/2020 85.62 1054.63/26/2020 85.52 1004.2
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Chenaux GS Flow 2020
A total of 20-30 mm of rain are forecast for the region through Monday. Water flows at
Chenaux GS are expected to increase 200-300 m3/s by early next week in response to
this rain event and increased snowmelt as temperatures warm. The headwater level will
remain between 85.30 m and 86.50 m.
0.0
500.0
1000.0
1500.0
2000.0
2500.0
3000.0
3500.0
4000.0
4500.0
5000.0
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly F
low
(m
3 /s)
Median 2019 Flow 2020 Flow
Date Level (m) Flow (m3/s) OPG Forecast Forecast issued on: 3/27/20203/20/2020 74.09 1556.53/21/2020 74.19 1490.83/22/2020 74.13 1656.03/23/2020 74.06 1643.03/24/2020 74.02 1465.73/25/2020 74.04 1478.93/26/2020 74.05 1433.4
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Chats Falls GS Level 2020
A total of 20-30 mm of rain are forecast for the region through Monday. Water flows at
Chats Falls GS are expected to increase 300-500 m3/s by early next week in response to
this rain event and increased snowmelt as temperatures warm. The headwater level will
remain between 73.97 m and 74.22 m.
73.50
74.00
74.50
75.00
75.50
76.00
76.50
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly A
vera
ge L
evel
(m
)
Operating Limits Median 2019 Elevation 2020 Elevation
Date Level (m) Flow (m3/s) OPG Forecast Forecast issued on: 3/27/20203/20/2020 74.09 1556.53/21/2020 74.19 1490.83/22/2020 74.13 1656.03/23/2020 74.06 1643.03/24/2020 74.02 1465.73/25/2020 74.04 1478.93/26/2020 74.05 1433.4
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Chats Falls GS Flow 2020
A total of 20-30 mm of rain are forecast for the region through Monday. Water flows at
Chats Falls GS are expected to increase 300-500 m3/s by early next week in response to
this rain event and increased snowmelt as temperatures warm. The headwater level will
remain between 73.97 m and 74.22 m.
0.0
1000.0
2000.0
3000.0
4000.0
5000.0
6000.0
7000.0
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly F
low
(m
3 /s)
Median 2019 Flow 2020 Flow
Date Level (m) OPG Forecast Forecast issued on: 3/27/20203/20/2020 58.533/21/2020 58.553/22/2020 58.623/23/2020 58.623/24/2020 58.553/25/2020 58.513/26/2020 58.50
Ontario Power Generation Provisional Data
Levels and flows are also available on our toll-free line:
1-888-884-8022
Data current as of 3/27/2020
Ottawa River at Britannia Level 2020
Expect water levels to fluctuate up to 20 cm a day.
57.00
57.50
58.00
58.50
59.00
59.50
60.00
60.50
61.00
1 Jan 31 Jan 2 Mar 1 Apr 2 May 1 Jun 2 Jul 1 Aug 1 Sep 1 Oct 1 Nov 1 Dec 1 Jan
Dai
ly A
vera
ge L
evel
(m
)
Median 2019 Elevation 2020 Elevation
For further info please contact
Jennifer Gardiner
Stakeholder Relations Advisor
Ontario Power Generation
p: (613) 433-9673 x3350 e: [email protected]
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