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 Wednesday, April 30, 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 187.9 616.3    187.8 616
Fidler Lake 229.1 751.7    229 751.4
Footprint Lake 242.4 795.4 243797.2Water level expected to rise. 241 790.8
Northern Indian Lake 234.5 769.4    234.5 769.5
Partridge Breast Lake 241.9 793.7    241.9 793.7
Southern Indian Lake 257.2 843.9 257.3844.1Water level expected to rise. 257.3 844.1
Thompson Seaplane Base 186.9 613.3 187.5615Water 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 207 679.3 207.1679.4Water level expected to rise. 206.6 677.9
Keeyask Forebay 158.5 519.9    158.8 521.2
Kelsey Forebay 183.6 602.3 183.9603.4Water level expected to rise. 184.3 604.7
Lake Winnipeg ‡ 217.2 712.4 217.2712.5Water level expected to rise. 217.1 712.1
Norway House 216.9 711.6 216.9711.6No significant change to water level expected. 216.9 711.5
Playgreen Lake 216.7 710.8    216.9 711.7
Sipiwesk Lake 184.8 606.4 184.8606.3Water level expected to fall. 185.1 607.3
Split Lake 166.6 546.8 167547.8Water level expected to rise. 166.1 544.9
Stephens Lake 140.1 459.6    140.5 461.1

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 255.5 838.1 255.7839Water level expected to rise. 256.1 840.2
South Moose Lake 256 840 256.1840.1Water 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 274.6 900.9 274.7901.2Water level expected to rise. 274.3 899.8
Margaret/Eleanor Lake 274.4 900.3 274.5900.5Water level expected to rise. 274.2 899.5
Nutimik Lake 274.7 901.4 274.9901.7Water level expected to rise. 274.3 899.9
Pine Falls (below Generating Station) 217.8 714.5    217.4 713.2
Pointe du Bois (below Generating Station) 284.9 934.8    284.7 934.2
Sylvia Lake 274.3 899.9 274.3900.1Water 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 48 1,709    38 1,336
Grass River 27 951    30 1,051
Gunisao River 40 1,398    20 714
Jenpeg (outflow) 1,421 50,175    858 30,304
Kelsey (outflow) 1,717 60,629    1,343 47,414
Kettle (outflow) 3,372 119,071    2,521 89,033
Lake Winnipeg (outflow) 1,635 57,749    1,077 38,028
Missi Falls Control Structure 46 1,628 21750Water level expected to fall. 50 1,759
Notigi Control Structure 718 25,344    422 14,891
Odei River 21 733    44 1,552
Pine Falls (outflow) 967 34,142    691 24,395
Southern Indian Lake (inflow) 591 20,883    557 19,680

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.