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, May 20, 2025 at 6:45 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 188.3 617.9    188.2 617.5
Fidler Lake 229.7 753.7    229.6 753.2
Footprint Lake 243.1 797.5 243.3798.4Water level expected to rise. 241.1 791.1
Northern Indian Lake 235 770.9    234.9 770.6
Partridge Breast Lake 241.8 793.4    241.8 793.4
Southern Indian Lake 257.4 844.4 257.7845.4Water level expected to rise. 257.5 844.7
Thompson Seaplane Base 187.3 614.4 187.6615.4Water level expected to rise. 185.7 609.3

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 206.8 678.6 206.9678.9Water level expected to rise. 206.7 678.1
Keeyask Forebay 158.7 520.7    158.6 520.4
Kelsey Forebay 184.4 604.9 184.3604.8Water level expected to fall. 184.3 604.7
Lake Winnipeg ‡ 217.3 712.8 217.3712.8No significant change to water level expected. 217.2 712.5
Norway House 216.9 711.6 217.1712.1Water level expected to rise. 217 711.9
Playgreen Lake 216.8 711.3    217 711.8
Sipiwesk Lake 185.2 607.8 185.2607.5Water level expected to fall. 185.1 607.1
Split Lake 166.6 546.6 166.6546.6No significant change to water level expected. 166 544.8
Stephens Lake 139.6 458.2    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 255.7 839 255.9839.7Water level expected to rise. 256.3 840.7
South Moose Lake 256 839.9 256840Water level expected to rise. 256 840

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. 274.3 899.9
Margaret/Eleanor Lake 274.5 900.6 274.6901Water level expected to rise. 274.2 899.5
Nutimik Lake 275.1 902.4 275.2902.8Water level expected to rise. 274.3 900.1
Pine Falls (below Generating Station) 218.1 715.6    217.7 714.1
Pointe du Bois (below Generating Station) 285 934.9    284.8 934.4
Sylvia Lake 274.3 899.9 274.4900.3Water level expected to rise. 274.1 899.3

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 72 2,539    36 1,278
Grass River 34 1,192    38 1,358
Gunisao River 35 1,233    31 1,086
Jenpeg (outflow) 1,212 42,816    988 34,888
Kelsey (outflow) 1,532 54,103    1,189 41,992
Kettle (outflow) 1,903 67,212    1,477 52,155
Lake Winnipeg (outflow) 1,449 51,154    1,260 44,512
Missi Falls Control Structure 21 733 20700Water level expected to fall. 25 871
Notigi Control Structure 846 29,875    430 15,187
Odei River 83 2,924    65 2,283
Pine Falls (outflow) 1,249 44,102    917 32,384
Southern Indian Lake (inflow) 985 34,799    726 25,631

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.