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 Tuesday, July 15, 2025 at 1:00 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 187.5 615.1    188.2 617.6
Fidler Lake 228.8 750.6    229.8 753.9
Footprint Lake 241 790.7 241790.6Water level expected to fall. 243.2 798
Northern Indian Lake 234.4 769.1    235 771
Partridge Breast Lake 241.8 793.3    242 794.1
Southern Indian Lake 257.7 845.4 257.8845.9Water level expected to rise. 258.1 846.8
Thompson Seaplane Base 185.3 608 185.1607.4Water level expected to fall. 187.2 614.1

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 206.6 677.9 206.6677.8Water level expected to fall. 207.4 680.5
Keeyask Forebay 158.6 520.3    158.8 520.9
Kelsey Forebay 184.3 604.7 184.3604.8Water level expected to rise. 184.3 604.7
Lake Winnipeg ‡ 217.3 713 217.3713No significant change to water level expected. 217.7 714.1
Norway House 217.1 712.3 217.2712.6Water level expected to rise. 217.4 713.3
Playgreen Lake 217.1 712.2    217.4 713.2
Sipiwesk Lake 184.9 606.8 184.8606.4Water level expected to fall. 185.7 609.4
Split Lake 165.9 544.2 165.5543Water level expected to fall. 167.1 548.3
Stephens Lake 140.1 459.6    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 256 839.9 255.9839.7Water level expected to fall. 256.6 841.8
South Moose Lake 255.9 839.7 255.9839.7No significant change to water level expected. 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 274.3 899.8 274.3899.9Water level expected to rise. 275.5 904
Margaret/Eleanor Lake 274.2 899.6 274.2899.6No significant change to water level expected. 275 902.2
Nutimik Lake 274.3 899.8 274.3900Water level expected to rise. 276 905.6
Pine Falls (below Generating Station) 217.6 713.8    219 718.6
Pointe du Bois (below Generating Station) 284.8 934.3    285.7 937.2
Sylvia Lake 274.2 899.5 274.2899.5No significant change to water level expected. 274.5 900.7

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 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 23 820    59 2,075
Grass River 45 1,588    95 3,357
Gunisao River 11 404    41 1,457
Jenpeg (outflow) 849 29,978    1,978 69,866
Kelsey (outflow) 1,055 37,246    2,173 76,744
Kettle (outflow) 1,926 68,010    3,090 109,126
Lake Winnipeg (outflow) 1,166 41,159    2,414 85,267
Missi Falls Control Structure 21 733 21730Water level expected to fall. 71 2,499
Notigi Control Structure 429 15,154    988 34,903
Odei River 14 478    41 1,432
Pine Falls (outflow) 537 18,976    2,077 73,355
Southern Indian Lake (inflow) 679 23,990    850 30,003

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.