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 Monday, July 7, 2025 at 9:00 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 187.5 615.3    188.4 618
Fidler Lake 228.9 750.9    230 754.6
Footprint Lake 241.1 791.1 241.1790.9Water level expected to fall. 242.8 796.6
Northern Indian Lake 234.5 769.2    235.1 771.3
Partridge Breast Lake 241.8 793.3    242 794.1
Southern Indian Lake 257.7 845.3 257.8845.8Water level expected to rise. 258.1 846.9
Thompson Seaplane Base 185.4 608.4 185.3608Water level expected to fall. 186.6 612.3

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 206.6 677.8 206.8678.3Water level expected to rise. 207.4 680.4
Keeyask Forebay 158.7 520.5    158.5 520
Kelsey Forebay 184.3 604.7 184.3604.8Water level expected to rise. 184.3 604.7
Lake Winnipeg ‡ 217.3 713 217.4713.2Water level expected to rise. 217.6 713.9
Norway House 217.1 712.4 217.2712.6Water level expected to rise. 217.4 713.2
Playgreen Lake 217.1 712.4    217.4 713.1
Sipiwesk Lake 184.9 606.8 185607Water level expected to rise. 185.7 609.3
Split Lake 166 544.5 165.8544.1Water level expected to fall. 167 547.8
Stephens Lake 140.3 460.4    140.1 459.5

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.

‡ 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 256 839.8 255.9839.6Water level expected to fall. 256.6 841.7
South Moose Lake 255.9 839.7 255.9839.6Water level expected to fall. 256.3 840.8

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. 275.5 904
Margaret/Eleanor Lake 274.2 899.6 274.2899.6No significant change to water level expected. 275 902.4
Nutimik Lake 274.3 899.9 274.3900Water level expected to rise. 276 905.5
Pine Falls (below Generating Station) 217.6 714    218.9 718.2
Pointe du Bois (below Generating Station) 284.8 934.3    285.7 937.2
Sylvia Lake 274.2 899.5 274.1899.4Water level expected to fall. 274.6 901.1

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.

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 28 973    74 2,620
Grass River 46 1,626    92 3,238
Gunisao River 16 569    63 2,211
Jenpeg (outflow) 850 30,034    1,849 65,294
Kelsey (outflow) 1,121 39,586    2,174 76,790
Kettle (outflow) 1,476 52,110    2,632 92,946
Lake Winnipeg (outflow) 1,176 41,533    2,271 80,201
Missi Falls Control Structure 21 731 21730Water level expected to fall. 71 2,497
Notigi Control Structure 427 15,073    986 34,806
Odei River 16 580    47 1,669
Pine Falls (outflow) 593 20,935    2,045 72,235
Southern Indian Lake (inflow) 611 21,561    872 30,779

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.