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 Thursday, August 20, 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 229.9 754.1    228.7 750.2
Footprint Lake 243.4 798.5 243.4798.6Water level expected to rise. 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 258.2 847.1 258.2847Water level expected to fall. 257.7 845.5
Thompson Seaplane Base 187.5 615.3 187.4614.8Water level expected to fall. 185.1 607.1

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 207.8 681.9 207.5680.8Water level expected to fall. 206.5 677.6
Keeyask Forebay 158.8 521.1    158.7 520.7
Kelsey Forebay 184.3 604.8 184.3604.8No significant change to water level expected. 184.4 604.8
Lake Winnipeg ‡ 217.8 714.4 217.7714.1Water level expected to fall. 217.3 712.9
Norway House 217.4 713.1 217.4713.1No significant change to water level expected. 217.2 712.5
Playgreen Lake 217.3 713.1    217.2 712.6
Sipiwesk Lake 186.7 612.7 186.5611.9Water level expected to fall. 184.9 606.8
Split Lake 168 551.2 167.9550.7Water level expected to fall. 165.8 543.9
Stephens Lake 141 462.5    140.8 462

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. 256.1 840.2
South Moose Lake 256.4 841.3 256.4841.3No significant change to water level expected. 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 274.2 899.6 274.2899.6No significant change to water level expected. 274.2 899.7
Margaret/Eleanor Lake 274.2 899.5 274.1899.4Water level expected to fall. 274.2 899.5
Nutimik Lake 274.2 899.8 274.2899.7Water level expected to fall. 274.2 899.8
Pine Falls (below Generating Station) 217.8 714.5    217.4 713.4
Pointe du Bois (below Generating Station) 284.7 934.2    284.7 934
Sylvia Lake 274.1 899.3 274.1899.2Water level expected to fall. 274.2 899.5

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.

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 26 927    11 374
Grass River 135 4,763    38 1,344
Gunisao River 25 868    5 188
Jenpeg (outflow) 2,109 74,492    851 30,036
Kelsey (outflow) 3,255 114,964    1,073 37,893
Kettle (outflow) 4,719 166,660    1,867 65,918
Lake Winnipeg (outflow) 2,524 89,134    1,193 42,127
Missi Falls Control Structure 142 5,016 903,179Water level expected to fall. 20 708
Notigi Control Structure 985 34,795    430 15,200
Odei River 50 1,770    9 312
Pine Falls (outflow) 444 15,696    445 15,716
Southern Indian Lake (inflow) 991 34,986    674 23,787

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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