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 Friday, June 6, 2025 at 9:23 AM.

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 187.8 616.3    187.9 616.5
Fidler Lake 229.3 752.2    229.3 752.2
Footprint Lake 242.6 795.8 241.9793.6Water level expected to fall. 241.4 791.9
Northern Indian Lake 234.7 770    234.7 770.1
Partridge Breast Lake 241.8 793.4    241.8 793.4
Southern Indian Lake 257.5 844.7 257.6845.1Water level expected to rise. 257.6 845.3
Thompson Seaplane Base 186.9 613.2 186.4611.5Water level expected to fall. 185.9 609.8

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 206.8 678.6 206.8678.6No significant change to water level expected. 207.2 679.9
Keeyask Forebay 158.7 520.6    158.7 520.6
Kelsey Forebay 184.3 604.7 184.3604.7No significant change to water level expected. 184.3 604.8
Lake Winnipeg ‡ 217.3 712.9 217.3712.9No significant change to water level expected. 217.3 713
Norway House 217.1 712.4 217.2712.5Water level expected to rise. 217.1 712.3
Playgreen Lake 217.1 712.3    217.1 712.2
Sipiwesk Lake 185.1 607.2 185.1607.2No significant change to water level expected. 185.3 608.1
Split Lake 166.4 546 166.3545.5Water level expected to fall. 166.4 546
Stephens Lake 140.2 460.1    140.5 460.9

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 255.9 839.4 256839.9Water level expected to rise. 256.5 841.4
South Moose Lake 255.9 839.7 256.1840.1Water level expected to rise. 256.1 840.3

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.

Winnipeg River

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.5 900.5 274.5900.5No significant change to water level expected. 274.9 902
Margaret/Eleanor Lake 274.3 899.9 274.3900Water level expected to rise. 274.6 901
Nutimik Lake 274.6 901 274.6900.9Water level expected to fall. 275.2 902.8
Pine Falls (below Generating Station) 217.9 714.8    218.2 716
Pointe du Bois (below Generating Station) 285 934.9    285.2 935.7
Sylvia Lake 274.1 899.4 274.2899.6Water level expected to rise. 274.4 900.3

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.

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 43 1,520    58 2,038
Grass River 38 1,355    58 2,063
Gunisao River 19 666    51 1,787
Jenpeg (outflow) 1,129 39,884    1,705 60,213
Kelsey (outflow) 1,331 47,014    1,577 55,679
Kettle (outflow) 2,977 105,141    2,371 83,722
Lake Winnipeg (outflow) 1,458 51,500    2,022 71,412
Missi Falls Control Structure 21 733 20700Water level expected to fall. 25 876
Notigi Control Structure 570 20,128    434 15,340
Odei River 32 1,139    67 2,382
Pine Falls (outflow) 942 33,270    1,448 51,146
Southern Indian Lake (inflow) 934 32,994    1,135 40,099

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.