Water levels & flows

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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, July 28, 2025 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 187.4 614.7    187.9 616.4
Fidler Lake 228.7 750.2    229.3 752.3
Footprint Lake 240.9 790.4 240.9790.2Water level expected to fall. 243.2 797.9
Northern Indian Lake 234.3 768.7    234.7 770.1
Partridge Breast Lake 241.8 793.3    241.8 793.4
Southern Indian Lake 257.7 845.4 257.7845.6Water level expected to rise. 258.1 846.6
Thompson Seaplane Base 185.2 607.6 185.1607.2Water level expected to fall. 187.3 614.4

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 206.6 677.8 206.6677.9Water level expected to rise. 207.4 680.6
Keeyask Forebay 158.6 520.3    158.7 520.8
Kelsey Forebay 184.3 604.8 184.4604.9Water level expected to rise. 184.3 604.7
Lake Winnipeg ‡ 217.3 713 217.3712.9Water level expected to fall. 217.7 714.3
Norway House 217.2 712.6 217.2712.5Water level expected to fall. 217.6 713.9
Playgreen Lake 217.2 712.6    217.7 714.2
Sipiwesk Lake 184.9 606.8 185606.8No significant change to water level expected. 185.8 609.6
Split Lake 165.8 544 165.7543.7Water level expected to fall. 167.2 548.6
Stephens Lake 140.4 460.6    140.7 461.6

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.

‡ 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 256 839.9 255.8839.4Water level expected to fall. 256.5 841.6
South Moose Lake 255.9 839.5 256839.8Water level expected to rise. 256.3 840.9

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.

Winnipeg River

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.3 899.8 274.3899.8No significant change to water level expected. 275.3 903.4
Margaret/Eleanor Lake 274.2 899.6 274.2899.7Water level expected to rise. 274.8 901.5
Nutimik Lake 274.3 899.8 274.3899.8No significant change to water level expected. 275.8 905
Pine Falls (below Generating Station) 217.5 713.6    218.9 718.1
Pointe du Bois (below Generating Station) 284.7 934.1    285.6 936.9
Sylvia Lake 274.2 899.5 274.2899.6Water level expected to rise. 274.3 899.9

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.

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 16 551    39 1,378
Grass River 46 1,625    94 3,317
Gunisao River 8 266    23 814
Jenpeg (outflow) 851 30,063    1,987 70,155
Kelsey (outflow) 1,076 37,992    2,319 81,907
Kettle (outflow) 1,754 61,945    2,866 101,216
Lake Winnipeg (outflow) 1,204 42,504    2,504 88,444
Missi Falls Control Structure 21 730 21725Water level expected to fall. 21 736
Notigi Control Structure 429 15,159    851 30,068
Odei River 8 291    28 993
Pine Falls (outflow) 476 16,809    1,971 69,602
Southern Indian Lake (inflow) 522 18,444    808 28,541

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.

Notifications and forecasts

Read all archived notifications and forecasts.