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, July 21, 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        187.4 614.9
Fidler Lake 230.8 757.3    228.7 750.4
Footprint Lake 243.5 798.9 243.4798.5Water level expected to fall. 240.9 790.5
Northern Indian Lake 235.2 771.6    234.4 768.9
Partridge Breast Lake 242.3 795    241.8 793.3
Southern Indian Lake 258.2 847.1 258.2847Water level expected to fall. 257.7 845.4
Thompson Seaplane Base 187.7 615.8 187.3614.4Water level expected to fall. 185.2 607.6

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 208.4 683.6 208.5684.1Water level expected to rise. 206.6 677.8
Keeyask Forebay 158.7 520.7    158.8 521.1
Kelsey Forebay 184 603.7 184.4604.8Water level expected to rise. 184.4 604.9
Lake Winnipeg ‡ 217.9 714.9 218715.1Water level expected to rise. 217.3 713
Norway House 217.5 713.6 217.5713.7Water level expected to rise. 217.2 712.6
Playgreen Lake 217.1 712.2    217.2 712.7
Sipiwesk Lake 186.6 612.2 187.2614.3Water level expected to rise. 185 606.8
Split Lake 167.8 550.6 168.1551.6Water level expected to rise. 165.8 544
Stephens Lake 139.1 456.2    140.5 460.8

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 256.6 841.7 256.6841.9Water level expected to rise. 256 839.9
South Moose Lake 256.4 841.1 256.4841.2Water 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 274.4 900.2 274.4900.2No significant change to water level expected. 274.3 899.8
Margaret/Eleanor Lake 274.2 899.7 274.3899.8Water level expected to rise. 274.2 899.6
Nutimik Lake 274.5 900.5 274.5900.5No significant change to water level expected. 274.3 899.8
Pine Falls (below Generating Station) 218.3 716.4    217.4 713.2
Pointe du Bois (below Generating Station) 284.8 934.5    284.7 934.2
Sylvia Lake 274.1 899.4 274.2899.5Water level expected to rise. 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 42 1,490    20 692
Grass River 142 5,026    46 1,609
Gunisao River 59 2,100    9 324
Jenpeg (outflow) 3,679 129,912    854 30,175
Kelsey (outflow) 3,111 109,858    1,056 37,310
Kettle (outflow) 4,070 143,728    907 32,033
Lake Winnipeg (outflow) 4,158 146,854    1,200 42,375
Missi Falls Control Structure 142 5,006 21750Water level expected to fall. 20 722
Notigi Control Structure 991 35,010    429 15,152
Odei River 54 1,892    11 378
Pine Falls (outflow) 891 31,452    454 16,020
Southern Indian Lake (inflow) 1,169 41,272    505 17,823

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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