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, July 1, 2025 at 9:06 AM.

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 187.6 615.4    188.5 618.5
Fidler Lake 228.9 751    230.2 755.3
Footprint Lake 241.3 791.5 241.2791.5No significant change to water level expected. 242.3 794.9
Northern Indian Lake 234.5 769.4    235.2 771.6
Partridge Breast Lake 241.8 793.3    242 794
Southern Indian Lake 257.6 845.2 257.7845.6Water level expected to rise. 258.1 846.9
Thompson Seaplane Base 185.7 609.2 185.5608.6Water level expected to fall. 186.2 611

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 206.6 677.9 206.7678.2Water level expected to rise. 207.4 680.4
Keeyask Forebay 158.6 520.4    158.5 520.2
Kelsey Forebay 184.4 604.9 184.3604.8Water level expected to fall. 184.3 604.7
Lake Winnipeg ‡ 217.3 713 217.3712.9Water level expected to fall. 217.5 713.7
Norway House 217.2 712.6 217.1712.3Water level expected to fall. 217.3 712.8
Playgreen Lake 217.2 712.6    217.2 712.6
Sipiwesk Lake 185 607 185606.8Water level expected to fall. 185.7 609.2
Split Lake 166 544.7 165.7543.6Water level expected to fall. 166.9 547.6
Stephens Lake 140.5 460.9    139.9 459.1

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 256 839.8 255.9839.7Water level expected to fall. 256.5 841.6
South Moose Lake 256 839.8 255.9839.6Water level expected to fall. 256.3 840.7

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.

Winnipeg River

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.3 899.9 274.3899.9No significant change to water level expected. 275.3 903.3
Margaret/Eleanor Lake 274.2 899.6 274.2899.7Water level expected to rise. 274.9 901.9
Nutimik Lake 274.3 900 274.3900.1Water level expected to rise. 275.7 904.7
Pine Falls (below Generating Station) 217.7 714.2    218.7 717.4
Pointe du Bois (below Generating Station) 284.8 934.4    285.5 936.8
Sylvia Lake 274.1 899.3 274.2899.5Water level expected to rise. 274.5 900.7

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.

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 30 1,076    87 3,071
Grass River 46 1,625    91 3,212
Gunisao River 16 560    36 1,270
Jenpeg (outflow) 846 29,871    1,841 65,024
Kelsey (outflow) 1,149 40,584    2,159 76,229
Kettle (outflow) 1,895 66,933    1,856 65,528
Lake Winnipeg (outflow) 1,199 42,338    2,211 78,091
Missi Falls Control Structure 21 740 20700Water level expected to fall. 71 2,501
Notigi Control Structure 427 15,076    912 32,210
Odei River 19 658    67 2,366
Pine Falls (outflow) 610 21,544    1,862 65,739
Southern Indian Lake (inflow) 707 24,950    842 29,725

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.