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 Saturday, May 31, 2025 at 4:01 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 188 616.8    187.9 616.5
Fidler Lake 229.4 752.6    229.3 752.4
Footprint Lake 242.9 797 242.2794.7Water level expected to fall. 241.4 792
Northern Indian Lake 234.8 770.3    234.7 770.1
Partridge Breast Lake 241.8 793.4    241.8 793.4
Southern Indian Lake 257.4 844.6 257.5844.8Water level expected to rise. 257.5 845
Thompson Seaplane Base 187.1 613.9 186.6612.3Water level expected to fall. 185.9 610.1

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 206.9 678.7 206.9678.7No significant change to water level expected. 206.9 678.8
Keeyask Forebay 158.8 520.9    158.7 520.7
Kelsey Forebay 184.3 604.7 184.3604.7No significant change to water level expected. 184.3 604.7
Lake Winnipeg ‡ 217.3 712.8 217.3712.9Water level expected to rise. 217.3 712.8
Norway House 217.2 712.5 217.1712.3Water level expected to fall. 217.2 712.6
Playgreen Lake 217.2 712.6    217.2 712.7
Sipiwesk Lake 185.1 607.4 185.2607.5Water level expected to rise. 185.2 607.5
Split Lake 166.5 546.4 166.4545.8Water level expected to fall. 166.4 545.8
Stephens Lake 140.2 460.1    140.9 462.1

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.

‡ 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 255.8 839.3 255.9839.6Water level expected to rise. 256.4 841.1
South Moose Lake 256 839.8 256.1840.1Water level expected to rise. 256.1 840.2

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 274.6 900.9    274.6 900.8
Margaret/Eleanor Lake 274.4 900.3    274.3 900
Nutimik Lake 274.8 901.5    274.7 901.3
Pine Falls (below Generating Station) 217.8 714.6    217.9 715
Pointe du Bois (below Generating Station) 285 934.9    285 935
Sylvia Lake 274.3 899.8    274.2 899.6

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 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 52 1,822    66 2,319
Grass River 35 1,251    55 1,949
Gunisao River 24 858    55 1,934
Jenpeg (outflow) 1,174 41,467    1,418 50,089
Kelsey (outflow) 1,404 49,590    1,568 55,382
Kettle (outflow) 2,473 87,318    2,197 77,582
Lake Winnipeg (outflow) 1,511 53,360    1,762 62,216
Missi Falls Control Structure 21 744 20700Water level expected to fall. 24 863
Notigi Control Structure 666 23,505    430 15,183
Odei River 42 1,490    79 2,789
Pine Falls (outflow) 942 33,275    1,176 41,513
Southern Indian Lake (inflow) 936 33,059    676 23,866

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.