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 Saturday, August 30, 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    187.6 615.3
Fidler Lake 229 751.3    228.9 750.9
Footprint Lake 240.8 790.2 240.9790.3Water level expected to rise. 242 794
Northern Indian Lake 234.6 769.6    234.5 769.2
Partridge Breast Lake 241.8 793.3    241.8 793.3
Southern Indian Lake 257.8 845.7 257.9846Water level expected to rise. 258 846.5
Thompson Seaplane Base 185.1 607.4 185.2607.5Water level expected to rise. 186.4 611.6

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 206.5 677.6 206.6678Water level expected to rise. 207.5 680.7
Keeyask Forebay 158.8 520.9    158.7 520.8
Kelsey Forebay 184.3 604.8 184.3604.8No significant change to water level expected. 184.3 604.6
Lake Winnipeg ‡ 217.3 712.9 217.3712.8Water level expected to fall. 217.8 714.4
Norway House 217.2 712.6 217.1712.2Water level expected to fall. 217.5 713.7
Playgreen Lake 217.2 712.7    217.6 713.8
Sipiwesk Lake 184.9 606.8 184.9606.7Water level expected to fall. 185.8 609.7
Split Lake 165.8 544 165.7543.6Water level expected to fall. 167.1 548.1
Stephens Lake 140.5 461    140.4 460.5

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 256.2 840.4 256.2840.6Water level expected to rise. 256.4 841.1
South Moose Lake 256 839.8 255.9839.7Water 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 274.2 899.6 274.2899.7Water level expected to rise. 274.9 901.7
Margaret/Eleanor Lake 274.1 899.4 274.1899.4No significant change to water level expected. 274.5 900.7
Nutimik Lake 274.2 899.6 274.2899.7Water level expected to rise. 275.1 902.6
Pine Falls (below Generating Station) 217.4 713.4    218.3 716.1
Pointe du Bois (below Generating Station) 284.6 933.7    285.2 935.6
Sylvia Lake 274.1 899.3 274.1899.3No significant change to water level expected. 274.3 899.9

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 11 377    17 596
Grass River 36 1,270    75 2,659
Gunisao River 6 216    13 471
Jenpeg (outflow) 859 30,349    2,009 70,942
Kelsey (outflow) 1,098 38,759    2,306 81,434
Kettle (outflow) 1,879 66,339    2,961 104,575
Lake Winnipeg (outflow) 1,207 42,638    2,498 88,220
Missi Falls Control Structure 20 709 20700Water level expected to fall. 21 734
Notigi Control Structure 432 15,254    568 20,071
Odei River 19 679    18 620
Pine Falls (outflow) 480 16,940    1,305 46,073
Southern Indian Lake (inflow) 549 19,391    641 22,654

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.