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 Monday, August 17, 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 188.3 617.7    187.4 614.7
Fidler Lake 229.9 754.2    228.6 750.1
Footprint Lake 243.4 798.6 243.4798.6No significant change to water level expected. 240.8 790.2
Northern Indian Lake        234.3 768.6
Partridge Breast Lake 242.2 794.6    241.8 793.3
Southern Indian Lake 258.2 847.1 258.2847.1No significant change to water level expected. 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 207.9 682.2 207.6681.2Water level expected to fall. 206.5 677.6
Keeyask Forebay 158.9 521.5    158.8 521.2
Kelsey Forebay 184.4 604.9 184.3604.8Water level expected to fall. 184.3 604.8
Lake Winnipeg ‡ 217.8 714.5 217.7714.2Water level expected to fall. 217.3 712.9
Norway House 217.4 713.4 217.3713.1Water level expected to fall. 217.1 712.2
Playgreen Lake 217.4 713.3    217.1 712.2
Sipiwesk Lake 186.9 613.2 186.7612.5Water level expected to fall. 184.9 606.8
Split Lake 168.1 551.5 168551.1Water level expected to fall. 165.8 544
Stephens Lake 141.1 462.9    140.6 461.2

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.

‡ 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. 255.9 839.6

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 274.2 899.5 274.2899.5No significant change to water level expected. 274.2 899.7
Margaret/Eleanor Lake 274.1 899.3 274.1899.3No significant change to water level expected. 274.2 899.4
Nutimik Lake 274.2 899.6 274.2899.7Water level expected to rise. 274.2 899.7
Pine Falls (below Generating Station) 218 715.1    217.5 713.5
Pointe du Bois (below Generating Station) 284.7 934    284.7 933.9
Sylvia Lake 274.1 899.1 274.1899.2Water level expected to rise. 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 27 955    11 382
Grass River 140 4,941    39 1,367
Gunisao River 26 923    6 194
Jenpeg (outflow) 2,332 82,341    844 29,789
Kelsey (outflow) 3,444 121,627    1,092 38,563
Kettle (outflow) 4,905 173,214    971 34,297
Lake Winnipeg (outflow) 2,775 98,011    1,145 40,442
Missi Falls Control Structure 143 5,037 903,179Water level expected to fall. 20 713
Notigi Control Structure 986 34,835    431 15,237
Odei River 53 1,875    6 201
Pine Falls (outflow) 460 16,255    430 15,181
Southern Indian Lake (inflow) 1,052 37,152    551 19,454

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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