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 Sunday, May 18, 2025 at 12:46 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 188.4 618    188.2 617.3
Fidler Lake 229.7 753.7    229.6 753.2
Footprint Lake 243.1 797.4 243.3798.2Water level expected to rise. 241.1 791
Northern Indian Lake 235 770.9    234.9 770.6
Partridge Breast Lake 241.8 793.4    241.9 793.5
Southern Indian Lake 257.4 844.3 257.6845.2Water level expected to rise. 257.4 844.6
Thompson Seaplane Base     187.6615.4Water level expected to rise. 185.6 609

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 206.9 678.8 206.9678.9Water level expected to rise. 206.6 677.9
Keeyask Forebay 158.4 519.7    158.2 519
Kelsey Forebay 184.4 604.9 184.3604.8Water level expected to fall. 184.3 604.7
Lake Winnipeg ‡ 217.2 712.7 217.2712.8Water level expected to rise. 217.2 712.5
Norway House 216.6 710.7 217712.1Water level expected to rise. 217 711.8
Playgreen Lake 216.5 710.2    217.1 712.1
Sipiwesk Lake 185.2 607.8 185.2607.5Water level expected to fall. 185 606.9
Split Lake 166.5 546.4 166.6546.5Water level expected to rise. 166.1 544.9
Stephens Lake 139.7 458.4    140.4 460.6

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 255.8 839.1 255.9839.6Water level expected to rise. 256.2 840.5
South Moose Lake 256 839.8 256840Water level expected to rise. 256 839.9

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 274.8 901.6 274.9901.9Water level expected to rise. 274.3 900
Margaret/Eleanor Lake 274.5 900.6 274.6901Water level expected to rise. 274.2 899.6
Nutimik Lake 275.1 902.4 275.2902.8Water level expected to rise. 274.4 900.2
Pine Falls (below Generating Station) 218.4 716.5    217.5 713.5
Pointe du Bois (below Generating Station) 285 934.9    284.8 934.5
Sylvia Lake 274.3 900 274.4900.3Water level expected to rise. 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 76 2,696    32 1,132
Grass River 32 1,122    37 1,310
Gunisao River 36 1,279    20 711
Jenpeg (outflow) 1,205 42,552    946 33,391
Kelsey (outflow) 1,414 49,937    1,218 43,020
Kettle (outflow) 2,788 98,441    2,116 74,733
Lake Winnipeg (outflow) 1,351 47,699    1,208 42,654
Missi Falls Control Structure 21 738 20700Water level expected to fall. 25 875
Notigi Control Structure 849 29,991    427 15,095
Odei River 91 3,223    64 2,249
Pine Falls (outflow) 1,224 43,229    730 25,784
Southern Indian Lake (inflow) 1,011 35,713    740 26,140

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.