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, April 29, 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 187.9 616.3    187.8 616
Fidler Lake 229.1 751.7    229 751.4
Footprint Lake 242.4 795.4 243797.1Water level expected to rise. 241 790.8
Northern Indian Lake 234.5 769.4    234.5 769.4
Partridge Breast Lake 241.9 793.7    241.9 793.7
Southern Indian Lake 257.2 843.9 257.3844Water level expected to rise. 257.3 844.1
Thompson Seaplane Base 186.9 613.2 187.4614.9Water level expected to rise. 185.7 609.4

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 207.1 679.3 207.1679.4Water level expected to rise. 206.6 677.9
Keeyask Forebay 158.7 520.6    158.9 521.2
Kelsey Forebay 183.5 602 183.8603.1Water level expected to rise. 184.3 604.8
Lake Winnipeg ‡ 217.2 712.4 217.2712.5Water level expected to rise. 217 712.1
Norway House 216.9 711.5 216.9711.5No significant change to water level expected. 216.8 711.4
Playgreen Lake 216.6 710.7    216.9 711.5
Sipiwesk Lake 184.8 606.4 184.8606.3Water level expected to fall. 185.1 607.3
Split Lake 166.7 546.8 167547.8Water level expected to rise. 166.1 544.9
Stephens Lake 140.2 459.9    140.5 461.1

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 255.4 838 255.7838.8Water level expected to rise. 256.1 840.2
South Moose Lake 256 839.9 256.1840.1Water level expected to rise. 255.9 839.6

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.

Winnipeg River

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.6 900.8    274.2 899.7
Margaret/Eleanor Lake 274.4 900.3    274.1 899.4
Nutimik Lake 274.7 901.3    274.3 899.8
Pine Falls (below Generating Station) 217.7 714.3    217.4 713.3
Pointe du Bois (below Generating Station) 284.9 934.8    284.7 934.2
Sylvia Lake 274.3 899.9    274.1 899.3

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.

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 39 1,387    36 1,274
Grass River 27 940    29 1,038
Gunisao River 41 1,444    20 717
Jenpeg (outflow) 1,420 50,155    856 30,230
Kelsey (outflow) 1,714 60,513    1,333 47,070
Kettle (outflow) 2,707 95,589    1,095 38,687
Lake Winnipeg (outflow) 1,622 57,292    1,064 37,587
Missi Falls Control Structure 47 1,651 21750Water level expected to fall. 49 1,745
Notigi Control Structure 718 25,361    422 14,897
Odei River 19 664    40 1,413
Pine Falls (outflow) 902 31,853    609 21,494
Southern Indian Lake (inflow) 610 21,545    553 19,525

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.