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 Monday, September 15, 2025 at 1:00 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 187.6 615.3    187.5 615.2
Fidler Lake 228.8 750.8    228.8 750.8
Footprint Lake 240.8 790 240.9790.3Water level expected to rise. 241.3 791.6
Northern Indian Lake 234.4 769.2    234.4 769.1
Partridge Breast Lake 241.8 793.3    241.8 793.3
Southern Indian Lake 257.8 845.8 257.8845.8No significant change to water level expected. 258.1 846.6
Thompson Seaplane Base 185 607.1 185.1607.3Water 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 206.5 677.6 206.5677.4Water level expected to fall. 207.5 680.7
Keeyask Forebay 158.9 521.2    158.5 520
Kelsey Forebay 184.3 604.8 184.3604.8No significant change to water level expected. 184.3 604.8
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. 217.6 714.1
Playgreen Lake 217.2 712.5    217.7 714.3
Sipiwesk Lake 184.9 606.5 184.8606.4Water level expected to fall. 185.9 609.9
Split Lake 165.8 543.9 165.6543.4Water level expected to fall. 167 547.8
Stephens Lake 140.5 461    140.7 461.6

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 256.2 840.7 256.3840.8Water level expected to rise. 256.4 841.1
South Moose Lake 256 839.9 256839.8Water level expected to fall. 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 274.1 899.4 274.2899.6Water level expected to rise. 274.5 900.5
Margaret/Eleanor Lake 274.1 899.2 274.1899.3Water level expected to rise. 274.3 899.9
Nutimik Lake 274.1 899.3 274.2899.5Water level expected to rise. 274.6 900.8
Pine Falls (below Generating Station) 217.3 712.9    217.8 714.5
Pointe du Bois (below Generating Station) 284.6 933.9    284.9 934.8
Sylvia Lake 274.1 899.2 274.1899.3Water level expected to rise. 274.2 899.5

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 8 279    12 408
Grass River 32 1,129    63 2,220
Gunisao River 3 122    13 451
Jenpeg (outflow) 779 27,518    2,058 72,662
Kelsey (outflow) 1,021 36,044    2,397 84,653
Kettle (outflow) 1,495 52,796    3,561 125,773
Lake Winnipeg (outflow) 1,101 38,864    2,595 91,634
Missi Falls Control Structure 21 741 21725Water level expected to fall. 21 749
Notigi Control Structure 424 14,956    424 14,984
Odei River 21 735    17 594
Pine Falls (outflow) 397 14,035    840 29,665
Southern Indian Lake (inflow) 599 21,156    575 20,290

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.