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 4, 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 187.7 615.8    187.6 615.5
Fidler Lake 229 751.3    228.9 751
Footprint Lake 240.8 790.2 240.9790.2No significant change to water level expected. 241.8 793.2
Northern Indian Lake 234.5 769.5    234.5 769.3
Partridge Breast Lake 241.8 793.3    241.8 793.3
Southern Indian Lake 257.8 845.8 257.9846Water level expected to rise. 258 846.5
Thompson Seaplane Base 185.1 607.4 185.1607.3Water level expected to fall. 186.2 611

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. 207.5 680.7
Keeyask Forebay 158.8 521.1    158.8 520.9
Kelsey Forebay 184.3 604.8 184.3604.8No significant change to water level expected. 184.3 604.6
Lake Winnipeg ‡ 217.3 712.9 217.2712.7Water level expected to fall. 217.8 714.4
Norway House 217 711.9 217.1712.3Water level expected to rise. 217.5 713.7
Playgreen Lake 216.9 711.8    217.5 713.6
Sipiwesk Lake 184.9 606.7 184.9606.7No significant change to water level expected. 185.9 609.8
Split Lake 165.8 543.9 165.8543.9No significant change to water level expected. 167 547.9
Stephens Lake 140.5 460.8    140.5 461

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 256.2 840.5 256.2840.6Water level expected to rise. 256.4 841.2
South Moose Lake 256 839.8 256839.8No 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 274.2 899.7 274.2899.7No significant change to water level expected. 274.6 900.9
Margaret/Eleanor Lake 274.2 899.5 274.2899.6Water level expected to rise. 274.3 899.9
Nutimik Lake 274.2 899.6 274.2899.7Water level expected to rise. 274.8 901.7
Pine Falls (below Generating Station) 217.6 713.9    218.2 715.8
Pointe du Bois (below Generating Station) 284.7 934    285 935.1
Sylvia Lake 274.2 899.4 274.2899.5Water level expected to rise. 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 9 330    15 547
Grass River 36 1,266    71 2,501
Gunisao River 5 176    15 539
Jenpeg (outflow) 851 30,044    1,997 70,528
Kelsey (outflow) 1,025 36,197    2,356 83,184
Kettle (outflow) 1,652 58,324    3,154 111,371
Lake Winnipeg (outflow) 1,117 39,438    2,485 87,743
Missi Falls Control Structure 21 726 20720Water level expected to fall. 21 737
Notigi Control Structure 429 15,139    498 17,577
Odei River 20 693    19 681
Pine Falls (outflow) 509 17,967    1,170 41,322
Southern Indian Lake (inflow) 491 17,344    593 20,926

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.