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, September 17, 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 187.6 615.4    187.5 615.2
Fidler Lake 228.9 750.8    228.8 750.7
Footprint Lake 240.8 790.1 240.9790.2Water level expected to rise. 241.2 791.3
Northern Indian Lake 234.5 769.3    234.4 769.1
Partridge Breast Lake 241.8 793.3    241.8 793.3
Southern Indian Lake 257.8 845.9 257.8845.7Water level expected to fall. 258.1 846.7
Thompson Seaplane Base 185 606.9 185.1607.3Water level expected to rise. 185.6 609

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 206.5 677.5 206.5677.4Water level expected to fall. 207.5 680.9
Keeyask Forebay 158.9 521.3    158.6 520.2
Kelsey Forebay 184.4 604.8 184.3604.8No significant change to water level expected. 184.3 604.6
Lake Winnipeg ‡ 217.2 712.7 217.2712.6Water level expected to fall. 217.7 714.2
Norway House 217.1 712.4 217712Water level expected to fall. 217.5 713.6
Playgreen Lake 217.1 712.4    217.5 713.7
Sipiwesk Lake 184.9 606.7 184.8606.4Water level expected to fall. 185.9 609.8
Split Lake 165.8 543.9 165.6543.3Water level expected to fall. 166.9 547.7
Stephens Lake 140.7 461.5    140.4 460.6

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 256.3 840.8 256.3840.8No significant change to water level expected. 256.4 841.2
South Moose Lake 256 840 256839.8Water level expected to fall. 256.3 840.8

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 274.2 899.6 274.2899.5Water level expected to fall. 274.5 900.5
Margaret/Eleanor Lake 274.1 899.4 274.1899.3Water level expected to fall. 274.3 899.9
Nutimik Lake 274.2 899.5 274.1899.4Water level expected to fall. 274.6 900.8
Pine Falls (below Generating Station) 217.4 713.2    218 715.3
Pointe du Bois (below Generating Station) 284.6 933.8    284.9 934.8
Sylvia Lake 274.1 899.3 274.1899.3No significant change to water level expected. 274.2 899.4

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.

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 14 486    12 410
Grass River 33 1,157    56 1,980
Gunisao River 3 123    12 424
Jenpeg (outflow) 703 24,819    2,047 72,278
Kelsey (outflow) 1,030 36,374    2,351 83,031
Kettle (outflow) 1,821 64,321    3,596 126,981
Lake Winnipeg (outflow) 1,032 36,448    2,516 88,867
Missi Falls Control Structure 21 730 21725Water level expected to fall. 21 742
Notigi Control Structure 425 15,022    424 14,981
Odei River 21 727    16 563
Pine Falls (outflow) 442 15,622    927 32,730
Southern Indian Lake (inflow) 695 24,550    662 23,372

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.