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, April 25, 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 187.8 616.3    187.8 616.1
Fidler Lake 229.2 751.9    229 751.4
Footprint Lake 242.4 795.2 242.7796.3Water level expected to rise. 241 790.6
Northern Indian Lake 234.5 769.3    234.5 769.5
Partridge Breast Lake 241.9 793.6    241.9 793.7
Southern Indian Lake 257.2 844 257.2844No significant change to water level expected. 257.3 844.1
Thompson Seaplane Base 187 613.6 187.2614.3Water level expected to rise. 185.8 609.7

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 207.1 679.5 207.1679.4Water level expected to fall. 206.6 677.9
Keeyask Forebay 158.5 520.1    158.6 520.4
Kelsey Forebay 183.2 601.1 183.6602.2Water level expected to rise. 184.3 604.7
Lake Winnipeg ‡ 217.1 712.4 217.2712.4No significant change to water level expected. 217 712
Norway House 216.9 711.5 216.9711.5No significant change to water level expected. 216.8 711.4
Playgreen Lake 216.5 710.2    216.8 711.2
Sipiwesk Lake 184.8 606.4 184.8606.3Water level expected to fall. 185.1 607.3
Split Lake 166.7 546.9 166.9547.5Water level expected to rise. 166 544.8
Stephens Lake 139.8 458.5    140.1 459.7

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.

‡ 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 255.3 837.6 255.5838.4Water level expected to rise. 256 840.1
South Moose Lake 256 839.9 256.1840.1Water level expected to rise. 255.9 839.6

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.

Winnipeg River

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.5 900.7    274.2 899.7
Margaret/Eleanor Lake 274.4 900.2    274.2 899.5
Nutimik Lake 274.6 901.1    274.2 899.8
Pine Falls (below Generating Station) 217.6 714    217.3 712.9
Pointe du Bois (below Generating Station) 284.8 934.5    284.7 934.2
Sylvia Lake 274.3 899.9    274.1 899.4

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.

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 9 333    19 668
Grass River 25 881    27 961
Gunisao River 31 1,097    18 651
Jenpeg (outflow) 1,488 52,548    851 30,046
Kelsey (outflow) 1,767 62,410    1,267 44,740
Kettle (outflow) 3,355 118,496    2,257 79,706
Lake Winnipeg (outflow) 1,690 59,686    1,052 37,153
Missi Falls Control Structure 46 1,620 25877Water level expected to fall. 49 1,738
Notigi Control Structure 715 25,236    422 14,888
Odei River 9 320    29 1,008
Pine Falls (outflow) 862 30,449    563 19,896
Southern Indian Lake (inflow) 513 18,128    500 17,644

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.