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 Sunday, August 10, 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    187.7 615.8
Fidler Lake 228.6 749.9    229 751.5
Footprint Lake 240.8 790.2 240.8790.1Water level expected to fall. 242.8 796.7
Northern Indian Lake 234.2 768.5    234.6 769.7
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. 258 846.5
Thompson Seaplane Base 185.1 607.2 185607.1Water level expected to fall. 187 613.4

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 206.6 677.9 206.6677.8Water level expected to fall. 207.5 680.7
Keeyask Forebay 158.7 520.7    158.8 520.9
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. 217.7 714.4
Norway House 217.1 712.2 217.2712.5Water level expected to rise. 217.3 712.8
Playgreen Lake 217.1 712.2    217.2 712.6
Sipiwesk Lake 184.9 606.8 184.9606.5Water level expected to fall. 185.9 609.8
Split Lake 165.7 543.8 165.6543.4Water level expected to fall. 167.1 548.4
Stephens Lake 140 459.4    140.5 460.9

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.

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 256 840 255.7839Water 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 274.3 899.8 274.3900Water level expected to rise. 275.4 903.4
Margaret/Eleanor Lake 274.2 899.6 274.2899.7Water level expected to rise. 274.9 901.9
Nutimik Lake 274.3 899.8 274.3900.1Water level expected to rise. 275.8 904.8
Pine Falls (below Generating Station) 217.4 713.3    218.8 718
Pointe du Bois (below Generating Station) 284.7 934.2    285.5 936.6
Sylvia Lake 274.2 899.5 274.2899.6Water level expected to rise.    

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 11 373    28 991
Grass River 45 1,597    86 3,049
Gunisao River 6 197    20 716
Jenpeg (outflow) 845 29,829    1,981 69,966
Kelsey (outflow) 961 33,941    2,278 80,436
Kettle (outflow) 1,235 43,624    3,394 119,864
Lake Winnipeg (outflow) 1,151 40,632    2,359 83,303
Missi Falls Control Structure 20 709 20700Water level expected to fall. 21 734
Notigi Control Structure 428 15,105    752 26,561
Odei River 4 131    22 788
Pine Falls (outflow) 443 15,646    1,806 63,784
Southern Indian Lake (inflow) 542 19,157    702 24,783

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.