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 Wednesday, August 27, 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 187.7 615.9    187.5 615.2
Fidler Lake 228.9 751.1    228.9 751
Footprint Lake 240.8 790.2 240.9790.2No significant change to water level expected. 242.2 794.5
Northern Indian Lake 234.5 769.4    234.5 769.4
Partridge Breast Lake 241.8 793.3    241.8 793.3
Southern Indian Lake 257.8 845.7 257.8845.7No significant change to water level expected. 258 846.5
Thompson Seaplane Base 185.1 607.3 185.1607.3No significant change to water level expected. 186.5 612

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 206.5 677.6 206.7678Water level expected to rise. 207.5 680.7
Keeyask Forebay 158.7 520.8    158.9 521.3
Kelsey Forebay 184.4 604.8 184.3604.8No significant change to water level expected. 184.3 604.6
Lake Winnipeg ‡ 217.3 712.9 217.3712.8Water level expected to fall. 217.7 714.4
Norway House 217.2 712.5 217.1712.3Water level expected to fall. 217.5 713.5
Playgreen Lake 217.2 712.4    217.4 713.4
Sipiwesk Lake 185 606.8 184.9606.8No significant change to water level expected. 185.9 609.8
Split Lake 165.8 544 165.7543.8Water level expected to fall. 167.1 548.2
Stephens Lake 140.8 462    140.6 461.2

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 256.2 840.4 256839.8Water level expected to fall. 256.4 841.2
South Moose Lake 256 839.7 255.9839.7No 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 274.2 899.6 274.2899.6No significant change to water level expected. 274.9 902
Margaret/Eleanor Lake 274.1 899.4 274.1899.4No significant change to water level expected. 274.6 900.9
Nutimik Lake 274.2 899.6 274.2899.6No significant change to water level expected. 275.2 902.9
Pine Falls (below Generating Station) 217.4 713.1    218.5 717
Pointe du Bois (below Generating Station) 284.7 934.1    285.1 935.4
Sylvia Lake 274.1 899.3 274.1899.3No significant change to water level expected. 274.3 900.1

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.

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 11 397    18 650
Grass River 37 1,312    80 2,824
Gunisao River 7 245    14 483
Jenpeg (outflow) 856 30,245    1,974 69,722
Kelsey (outflow) 1,122 39,627    2,350 82,987
Kettle (outflow) 2,028 71,609    3,492 123,332
Lake Winnipeg (outflow) 1,189 41,987    2,432 85,893
Missi Falls Control Structure 21 727 20700Water level expected to fall. 21 747
Notigi Control Structure 432 15,268    569 20,084
Odei River 20 704    18 649
Pine Falls (outflow) 444 15,692    1,373 48,474
Southern Indian Lake (inflow) 460 16,229    614 21,670

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.