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 Thursday, April 16, 2026 at 4:00 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 187.9 616.3    187.8 616.2
Fidler Lake 229.3 752.2    229.2 752
Footprint Lake 242 793.9 242793.8Water level expected to fall. 242.4 795.2
Northern Indian Lake 234.5 769.4    234.5 769.3
Partridge Breast Lake 241.9 793.7    241.9 793.7
Southern Indian Lake 257.2 843.8 257.2843.7Water level expected to fall. 257.3 844.1
Thompson Seaplane Base 186.6 612.3 186.6612.2Water level expected to fall. 187 613.5

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 207.1 679.5 207.1679.5No significant change to water level expected. 207.1 679.6
Keeyask Forebay 158.6 520.3    158.6 520.5
Kelsey Forebay 183.6 602.5 183.7602.7Water level expected to rise. 183.2 601
Lake Winnipeg 217.1 712.3 217.1712.4Water level expected to rise. 217.1 712.4
Norway House 216.7 711 216.8711.2Water level expected to rise. 216.8 711.3
Playgreen Lake 215.7 707.7    216.3 709.5
Sipiwesk Lake 185 607 185606.8Water level expected to fall. 184.9 606.7
Split Lake 166.6 546.7 166.7546.9Water level expected to rise. 166.8 547.3
Stephens Lake 140.1 459.5    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 254.9 836.4 254.9836.2Water level expected to fall. 255.2 837.3
South Moose Lake 255.9 839.7 255.9839.7No significant change to water level expected. 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 274.3 900    274.4 900.3
Margaret/Eleanor Lake 274.2 899.7    274.3 899.9
Nutimik Lake 274.4 900.2    274.5 900.4
Pine Falls (below Generating Station) 217.4 713.4    217.6 713.8
Pointe du Bois (below Generating Station) 284.7 934.2    284.8 934.4
Sylvia Lake 274.2 899.5    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 6 195    7 235
Grass River 25 869    25 878
Gunisao River 3 117    8 272
Jenpeg (outflow) 1,569 55,400    1,563 55,186
Kelsey (outflow) 1,577 55,697    1,784 63,016
Kettle (outflow) 2,928 103,387    3,089 109,070
Lake Winnipeg (outflow) 1,722 60,819    1,749 61,776
Missi Falls Control Structure 48 1,703 511,800Water level expected to rise. 47 1,645
Notigi Control Structure 622 21,967    714 25,203
Odei River 6 211    6 225
Pine Falls (outflow) 588 20,779    764 26,991
Southern Indian Lake (inflow) 515 18,172    553 19,526

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.