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, July 6, 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 187.6 615.3    188.4 618
Fidler Lake 228.9 750.9    230 754.7
Footprint Lake 241.1 791.1 241.1791Water level expected to fall. 242.7 796.4
Northern Indian Lake 234.5 769.3    235.1 771.4
Partridge Breast Lake 241.8 793.3    242 794.1
Southern Indian Lake 257.6 845.3 257.8845.8Water level expected to rise. 258.1 846.9
Thompson Seaplane Base 185.5 608.5 185.3608Water level expected to fall. 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 206.6 677.8 206.8678.3Water level expected to rise. 207.4 680.4
Keeyask Forebay 158.7 520.6    158.5 520.1
Kelsey Forebay 184.3 604.7 184.3604.8Water level expected to rise. 184.3 604.6
Lake Winnipeg ‡ 217.3 713.1 217.4713.2Water level expected to rise. 217.6 713.9
Norway House 217.2 712.5 217.2712.6Water level expected to rise. 217.4 713.1
Playgreen Lake 217.1 712.3    217.3 713
Sipiwesk Lake 185 606.8 185607Water level expected to rise. 185.7 609.3
Split Lake 166 544.6 165.9544.1Water level expected to fall. 167 547.8
Stephens Lake 140.3 460.2    140 459.4

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.

‡ 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 256 839.9 255.9839.6Water level expected to fall. 256.6 841.7
South Moose Lake 255.9 839.6 255.9839.6No significant change to water level expected. 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 274.3 899.9 274.3899.9No significant change to water level expected. 275.5 903.9
Margaret/Eleanor Lake 274.2 899.7 274.2899.6Water level expected to fall. 275 902.3
Nutimik Lake 274.3 900 274.3900No significant change to water level expected. 276 905.5
Pine Falls (below Generating Station) 217.9 714.8    218.9 718.2
Pointe du Bois (below Generating Station) 284.7 934.1    285.6 937.1
Sylvia Lake 274.2 899.5 274.1899.4Water level expected to fall. 274.6 901

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 29 1,007    76 2,676
Grass River 47 1,659    92 3,252
Gunisao River 17 596    63 2,212
Jenpeg (outflow) 868 30,668    1,859 65,649
Kelsey (outflow) 1,164 41,104    2,197 77,578
Kettle (outflow) 1,502 53,054    3,129 110,496
Lake Winnipeg (outflow) 1,202 42,450    2,270 80,156
Missi Falls Control Structure 21 745 21730Water level expected to fall. 71 2,497
Notigi Control Structure 427 15,071    987 34,871
Odei River 17 597    50 1,753
Pine Falls (outflow) 662 23,367    2,024 71,488
Southern Indian Lake (inflow) 590 20,821    872 30,805

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.