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 Saturday, August 1, 2026 at 4:15 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 188.4 618.1    187.3 614.6
Fidler Lake 230.1 754.9    228.6 750.1
Footprint Lake 243.5 798.9 243.5798.8Water level expected to fall. 240.9 790.3
Northern Indian Lake        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. 257.7 845.4
Thompson Seaplane Base 187.7 615.8 187.4615Water level expected to fall. 185.2 607.5

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 208.4 683.6 208.1682.9Water level expected to fall. 206.6 677.7
Keeyask Forebay 158.9 521.3    158.8 520.8
Kelsey Forebay 184.3 604.8 184.3604.8No significant change to water level expected. 184.3 604.8
Lake Winnipeg ‡ 217.9 714.8 217.9714.8No significant change to water level expected. 217.3 713
Norway House 217.4 713.2 217.5713.5Water level expected to rise. 217.2 712.6
Playgreen Lake 216.9 711.7    217.2 712.6
Sipiwesk Lake 187.1 614 187.3614.4Water level expected to rise. 184.9 606.7
Split Lake 168.2 551.8 168.2551.8No significant change to water level expected. 165.8 543.9
Stephens Lake 140 459.4    139.9 458.9

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.

‡ 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 256.5 841.6 256.5841.6No significant change to water level expected. 256 839.9
South Moose Lake 256.4 841.3 256.4841.3No significant change to water level expected. 255.9 839.5

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

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.3 899.9 274.2899.6Water level expected to fall. 274.3 899.8
Margaret/Eleanor Lake 274.2 899.5 274.1899.4Water level expected to fall. 274.2 899.6
Nutimik Lake 274.4 900.2 274.3899.9Water level expected to fall. 274.3 899.9
Pine Falls (below Generating Station) 218.1 715.6    217.5 713.4
Pointe du Bois (below Generating Station) 284.8 934.4    284.7 934.2
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 40 1,426    14 497
Grass River 148 5,219    43 1,519
Gunisao River 40 1,407    6 223
Jenpeg (outflow) 3,324 117,375    851 30,062
Kelsey (outflow) 3,510 123,969    1,055 37,243
Kettle (outflow) 4,476 158,078    1,214 42,874
Lake Winnipeg (outflow) 3,749 132,386    1,203 42,493
Missi Falls Control Structure 143 5,037 1425,000Water level expected to fall. 20 706
Notigi Control Structure 984 34,765    429 15,156
Odei River 80 2,817    8 268
Pine Falls (outflow) 671 23,709    489 17,266
Southern Indian Lake (inflow) 1,183 41,774    456 16,112

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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