Water levels & flows

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, August 18, 2026 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 188.3 617.6    187.4 614.7
Fidler Lake 229.8 754.1    228.7 750.2
Footprint Lake 243.4 798.6 243.4798.6No significant change to water level expected. 240.8 790.2
Northern Indian Lake 235 771    234.3 768.6
Partridge Breast Lake 242.3 795    241.8 793.3
Southern Indian Lake 258.2 847.2 258.2847.1Water level expected to fall. 257.7 845.5
Thompson Seaplane Base 187.5 615.3 187.4614.8Water level expected to fall. 185.1 607.3

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 207.9 682.1 207.6681.1Water level expected to fall. 206.6 677.7
Keeyask Forebay 158.9 521.5    158.8 521
Kelsey Forebay 184.3 604.7 184.3604.8Water level expected to rise. 184.3 604.8
Lake Winnipeg ‡ 217.8 714.5 217.7714.2Water level expected to fall. 217.3 712.9
Norway House 217.4 713.3 217.4713.1Water level expected to fall. 217.1 712.4
Playgreen Lake 217.4 713.1    217.2 712.5
Sipiwesk Lake 186.9 613.1 186.6612.3Water level expected to fall. 184.9 606.7
Split Lake 168.1 551.5 167.9551Water level expected to fall. 165.8 544
Stephens Lake 141.1 462.9    140.7 461.8

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.

‡ 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 256.5 841.5 256.5841.5No significant change to water level expected. 256.1 840.1
South Moose Lake 256.4 841.3 256.5841.4Water level expected to rise. 255.9 839.7

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 274.2 899.5 274.2899.6Water level expected to rise. 274.2 899.6
Margaret/Eleanor Lake 274.1 899.3 274.1899.4Water level expected to rise. 274.2 899.5
Nutimik Lake 274.2 899.6 274.2899.7Water level expected to rise. 274.2 899.6
Pine Falls (below Generating Station) 217.9 714.9    217.2 712.6
Pointe du Bois (below Generating Station) 284.8 934.2    284.7 933.9
Sylvia Lake 274.1 899.2 274.1899.2No significant change to water level expected. 274.1 899.4

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.

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 27 951    11 387
Grass River 139 4,923    38 1,359
Gunisao River 26 915    5 190
Jenpeg (outflow) 2,276 80,381    848 29,964
Kelsey (outflow) 3,409 120,378    1,069 37,749
Kettle (outflow) 4,947 174,690    812 28,670
Lake Winnipeg (outflow) 2,712 95,789    1,177 41,558
Missi Falls Control Structure 143 5,064 903,179Water level expected to fall. 21 726
Notigi Control Structure 987 34,854    431 15,208
Odei River 52 1,839    7 243
Pine Falls (outflow) 487 17,210    379 13,400
Southern Indian Lake (inflow) 1,140 40,260    606 21,399

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.

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Notifications and forecasts

Read all archived notifications and forecasts.

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Further reading

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