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 Friday, July 18, 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 187.4 615    188.2 617.4
Fidler Lake 228.8 750.5    229.7 753.6
Footprint Lake 241 790.6 241790.6No significant change to water level expected. 243.3 798.2
Northern Indian Lake 234.4 769    235 770.9
Partridge Breast Lake 241.8 793.3    242 794
Southern Indian Lake 257.7 845.4 257.8845.7Water level expected to rise. 258.1 846.7
Thompson Seaplane Base 185.2 607.8 185.2607.5Water level expected to fall. 187.3 614.4

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 206.6 677.7 206.6677.9Water level expected to rise. 207.4 680.6
Keeyask Forebay 158.7 520.7    158.8 520.8
Kelsey Forebay 184.4 604.9 184.3604.8Water level expected to fall. 184.3 604.7
Lake Winnipeg ‡ 217.3 713 217.3713No significant change to water level expected. 217.7 714.2
Norway House 217.2 712.5 217.2712.7Water level expected to rise. 217.3 713.1
Playgreen Lake 217.2 712.5    217.3 712.9
Sipiwesk Lake 184.9 606.8 185606.8No significant change to water level expected. 185.7 609.4
Split Lake 165.8 544 165.8543.9Water level expected to fall. 167.1 548.3
Stephens Lake 140.1 459.6    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 256 839.9 255.9839.7Water level expected to fall. 256.6 841.7
South Moose Lake 255.9 839.7 255.9839.7No significant change to water level expected. 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 274.2 899.7 274.3899.9Water level expected to rise. 275.5 903.7
Margaret/Eleanor Lake 274.2 899.5 274.2899.6Water level expected to rise. 274.9 901.8
Nutimik Lake 274.2 899.7 274.3900Water level expected to rise. 276 905.4
Pine Falls (below Generating Station) 217.4 713.2    219 718.5
Pointe du Bois (below Generating Station) 284.8 934.3    285.7 937.2
Sylvia Lake 274.1 899.4 274.2899.5Water level expected to rise. 274.4 900.2

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 21 738    52 1,853
Grass River 46 1,621    96 3,382
Gunisao River 10 348    35 1,249
Jenpeg (outflow) 852 30,076    2,000 70,626
Kelsey (outflow) 1,053 37,170    2,198 77,620
Kettle (outflow) 1,005 35,485    3,090 109,105
Lake Winnipeg (outflow) 1,195 42,189    2,406 84,973
Missi Falls Control Structure 20 722 21730Water level expected to rise. 71 2,495
Notigi Control Structure 429 15,151    944 33,342
Odei River 12 437    40 1,416
Pine Falls (outflow) 396 13,997    2,089 73,756
Southern Indian Lake (inflow) 514 18,157    814 28,749

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.