Water levels & flows

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Nearly all of the electricity we produce is generated at 16 hydroelectric generating stations around the province of Manitoba. As part of our water management, water level and flow measurements are taken throughout waterways contributing to the hydroelectric system. These level readings are from hydrometric gauging stations managed by Manitoba Hydro and Water Survey of Canada.

The 7-day forecasts are estimates and subject to change. 7-day forecasts at specific sites are not posted as they are either weather dependent or unavailable. Northern forecasts are broadcast on local radio stations at the beginning of every month.

This information shows the average water levels and flows each day. It’s measured automatically and may be adjusted to be more accurate after it has been reviewed. It was last updated on Thursday, August 7, 2025 at 4:00 PM.

Churchill River and Churchill River Diversion

Actual and forecasted water levels for Churchill River and Churchill River Diversion.
Name Current level7-day forecast This day last year
Billard Lake 187.3 614.5    187.7 616
Fidler Lake 228.6 750    229.1 751.6
Footprint Lake 240.8 790.2 240.8790.1Water level expected to fall. 242.9 796.9
Northern Indian Lake 234.2 768.5    234.6 769.8
Partridge Breast Lake 241.8 793.3    241.8 793.3
Southern Indian Lake 257.7 845.4 257.7845.5Water level expected to rise. 258 846.6
Thompson Seaplane Base 185 606.9 185607.1Water level expected to rise. 187.2 614

Water forecast for the next 7 days:
level expected to rise expected to rise.
level expected to fall expected to fall.
level expected to remain constant expected to remain constant.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 206.6 677.7 206.6677.8Water level expected to rise. 207.5 680.7
Keeyask Forebay 158.7 520.8    158.4 519.6
Kelsey Forebay 184.3 604.7 184.3604.8Water level expected to rise. 184.3 604.7
Lake Winnipeg ‡ 217.3 712.9 217.3712.9No significant change to water level expected. 217.7 714.3
Norway House 217.3 712.8 217.2712.6Water level expected to fall. 217.4 713.3
Playgreen Lake 217.3 713.1    217.4 713.3
Sipiwesk Lake 184.9 606.7 184.9606.6Water level expected to fall. 185.8 609.6
Split Lake 165.8 543.9 165.6543.5Water level expected to fall. 167.2 548.4
Stephens Lake 140.2 460.1    140.5 461.1

Water forecast for the next 7 days:
level expected to rise expected to rise.
level expected to fall expected to fall.
level expected to remain constant expected to remain constant.

‡ Weather conditions, such as wind and barometric pressure, can cause levels to be different from location to location on Lake Winnipeg.

Saskatchewan River

Actual and forecasted water levels for Saskatchewan River.
Name Current level7-day forecast This day last year
Cedar Lake 256 839.9 255.8839.1Water level expected to fall. 256.5 841.4
South Moose Lake 255.9 839.6 255.9839.6No significant change to water level expected. 256.3 840.9

Water forecast for the next 7 days:
level expected to rise expected to rise.
level expected to fall expected to fall.
level expected to remain constant expected to remain constant.

Winnipeg River

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.3 899.9 274.3900Water level expected to rise. 275.3 903.2
Margaret/Eleanor Lake 274.2 899.7 274.2899.7No significant change to water level expected. 274.8 901.6
Nutimik Lake 274.3 900 274.4900.1Water level expected to rise. 275.8 904.7
Pine Falls (below Generating Station) 217.3 712.9    218.8 717.7
Pointe du Bois (below Generating Station) 284.7 934.2    285.5 936.7
Sylvia Lake 274.2 899.6 274.2899.6No significant change to water level expected.    

Water forecast for the next 7 days:
level expected to rise expected to rise.
level expected to fall expected to fall.
level expected to remain constant expected to remain constant.

Winnipeg River 7-day forecasts are published during the open-water season only.

Water flows

Actual and forecasted water flows.
Name Current flow7-day forecast This day last year
Burntwood River at Leaf Rapids 11 401    29 1,015
Grass River 46 1,622    87 3,079
Gunisao River 5 186    15 545
Jenpeg (outflow) 857 30,248    1,978 69,842
Kelsey (outflow) 1,125 39,733    2,253 79,547
Kettle (outflow) 1,655 58,429    3,051 107,746
Lake Winnipeg (outflow) 1,235 43,603    2,414 85,253
Missi Falls Control Structure 20 703 20700Water level expected to fall. 21 737
Notigi Control Structure 429 15,135    785 27,711
Odei River 4 155    24 851
Pine Falls (outflow) 512 18,097    1,814 64,073
Southern Indian Lake (inflow) 454 16,025    745 26,305

Water forecast for the next 7 days:
level expected to rise expected to rise.
level expected to fall expected to fall.
level expected to remain constant expected to remain constant.

Notifications and forecasts

Read all archived notifications and forecasts.