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, September 18, 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 187.6 615.4    187.5 615.2
Fidler Lake 228.9 750.9    228.8 750.7
Footprint Lake 240.8 790.1 240.9790.4Water level expected to rise. 241.2 791.2
Northern Indian Lake 234.5 769.2    234.4 769.1
Partridge Breast Lake 241.8 793.3    241.8 793.3
Southern Indian Lake 257.8 845.9 257.8845.9No significant change to water level expected. 258.1 846.7
Thompson Seaplane Base 185 606.8 185.1607.4Water level expected to rise. 185.6 608.9

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 206.5 677.5 206.5677.5No significant change to water level expected. 207.5 680.9
Keeyask Forebay 158.7 520.8    158.5 520
Kelsey Forebay 184.4 604.9 184.3604.8Water level expected to fall. 184.3 604.6
Lake Winnipeg ‡ 217.2 712.7 217.2712.6Water level expected to fall. 217.7 714.2
Norway House 217.1 712.1 217712Water level expected to fall. 217.5 713.4
Playgreen Lake 217 712.1    217.5 713.5
Sipiwesk Lake 185 606.8 184.8606.4Water level expected to fall. 185.9 609.8
Split Lake 165.8 543.9 165.6543.4Water level expected to fall. 166.9 547.7
Stephens Lake 140.7 461.6    140.3 460.3

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 256.3 840.8 256.2840.6Water level expected to fall. 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 274.2 899.5 274.2899.5No significant change to water level expected. 274.5 900.5
Margaret/Eleanor Lake 274.1 899.4 274.1899.3Water level expected to fall. 274.3 899.8
Nutimik Lake 274.1 899.4 274.1899.4No significant change to water level expected. 274.6 901
Pine Falls (below Generating Station) 217.4 713.3    218 715.1
Pointe du Bois (below Generating Station) 284.6 933.9    284.9 934.8
Sylvia Lake 274.1 899.3 274.1899.3No significant change to water level expected. 274.1 899.4

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 15 528    11 406
Grass River 33 1,163    55 1,951
Gunisao River 3 120    12 416
Jenpeg (outflow) 699 24,688    2,041 72,079
Kelsey (outflow) 1,034 36,504    2,330 82,273
Kettle (outflow) 1,445 51,041    3,472 122,611
Lake Winnipeg (outflow) 993 35,076    2,497 88,165
Missi Falls Control Structure 21 725 21725No significant change to water level expected. 21 737
Notigi Control Structure 426 15,035    424 14,989
Odei River 20 723    16 570
Pine Falls (outflow) 346 12,227    920 32,499
Southern Indian Lake (inflow) 653 23,056    727 25,673

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.