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 Tuesday, July 8, 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 187.5 615.2    188.4 617.9
Fidler Lake 228.9 750.8    230 754.5
Footprint Lake 241.1 791 241.1790.9Water level expected to fall. 242.9 796.9
Northern Indian Lake 234.5 769.2    235.1 771.3
Partridge Breast Lake 241.8 793.3    242 794.1
Southern Indian Lake 257.7 845.3 257.8845.8Water level expected to rise. 258.1 846.9
Thompson Seaplane Base 185.4 608.3 185.3607.9Water level expected to fall. 186.7 612.6

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 206.6 677.8 206.8678.4Water level expected to rise. 207.4 680.5
Keeyask Forebay 158.6 520.4    158.7 520.7
Kelsey Forebay 184.3 604.8 184.3604.8No significant change to water level expected. 184.3 604.7
Lake Winnipeg ‡ 217.3 713 217.4713.2Water level expected to rise. 217.6 714
Norway House 217.2 712.6 217.2712.6No significant change to water level expected. 217.4 713.2
Playgreen Lake 217.2 712.6    217.3 713.1
Sipiwesk Lake 185 606.8 185607Water level expected to rise. 185.7 609.3
Split Lake 165.9 544.4 165.8544Water level expected to fall. 167 547.9
Stephens Lake 140.4 460.5    140.2 459.9

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 256 839.8 255.9839.6Water level expected to fall. 256.6 841.7
South Moose Lake 255.9 839.7 255.9839.6Water 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 274.3 899.8 274.3899.9Water level expected to rise. 275.5 904
Margaret/Eleanor Lake 274.2 899.5 274.2899.6Water level expected to rise. 275 902.3
Nutimik Lake 274.3 899.9 274.3900.1Water level expected to rise. 276 905.6
Pine Falls (below Generating Station) 217.5 713.6    219 718.4
Pointe du Bois (below Generating Station) 284.7 934.1    285.7 937.2
Sylvia Lake 274.1 899.3 274.1899.4Water level expected to rise. 274.6 900.9

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 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 25 898    74 2,605
Grass River 46 1,623    92 3,260
Gunisao River 15 531    61 2,147
Jenpeg (outflow) 853 30,133    1,845 65,163
Kelsey (outflow) 1,120 39,539    2,198 77,604
Kettle (outflow) 1,999 70,584    2,472 87,300
Lake Winnipeg (outflow) 1,201 42,398    2,265 79,986
Missi Falls Control Structure 21 725 21730Water level expected to rise. 71 2,495
Notigi Control Structure 427 15,089    985 34,767
Odei River 17 590    45 1,590
Pine Falls (outflow) 481 17,002    2,090 73,823
Southern Indian Lake (inflow) 649 22,910    862 30,448

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.