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 Friday, August 15, 2025 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 187.3 614.6    187.6 615.6
Fidler Lake 228.6 750    229 751.2
Footprint Lake 240.8 790.1 240.8790.2Water level expected to rise. 242.6 796.1
Northern Indian Lake 234.2 768.5    234.5 769.5
Partridge Breast Lake 241.8 793.3    241.8 793.3
Southern Indian Lake 257.7 845.5 257.7845.5No significant change to water level expected. 258 846.5
Thompson Seaplane Base 185.1 607.2 185.1607.3Water level expected to rise. 186.9 613.3

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 206.6 677.7 206.6678Water level expected to rise. 207.5 680.7
Keeyask Forebay 158.8 520.9    158.8 521.1
Kelsey Forebay 184.4 604.8 184.3604.8No significant change to water level expected. 184.3 604.7
Lake Winnipeg ‡ 217.3 713 217.3713No significant change to water level expected. 217.7 714.4
Norway House 217.2 712.5 217.2712.6Water level expected to rise. 217.5 713.5
Playgreen Lake 217.2 712.7    217.5 713.6
Sipiwesk Lake 185 606.9 185606.8Water level expected to fall. 185.8 609.7
Split Lake 165.8 543.8 165.7543.7Water level expected to fall. 167.1 548.4
Stephens Lake 140.3 460.4    140.1 459.6

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.

‡ 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 256.1 840.1 255.9839.6Water level expected to fall. 256.4 841.3
South Moose Lake 255.9 839.7 255.9839.6Water level expected to fall. 256.3 840.9

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 274.3 899.9 274.2899.7Water level expected to fall. 275.3 903.1
Margaret/Eleanor Lake 274.2 899.6 274.2899.5Water level expected to fall. 274.8 901.6
Nutimik Lake 274.3 899.9 274.3899.8Water level expected to fall. 275.7 904.5
Pine Falls (below Generating Station) 217.2 712.7    218.6 717.3
Pointe du Bois (below Generating Station) 284.6 933.8    285.4 936.4
Sylvia Lake 274.2 899.5 274.2899.5No significant change to water level expected. 274.5 900.5

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.

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 10 351    24 850
Grass River 42 1,489    84 2,954
Gunisao River 6 205    17 586
Jenpeg (outflow) 850 30,028    1,985 70,106
Kelsey (outflow) 1,054 37,239    2,325 82,106
Kettle (outflow) 1,153 40,731    3,227 113,976
Lake Winnipeg (outflow) 1,186 41,869    2,451 86,566
Missi Falls Control Structure 21 740 20700Water level expected to fall. 21 732
Notigi Control Structure 431 15,204    711 25,120
Odei River 4 134    19 684
Pine Falls (outflow) 522 18,428    1,706 60,260
Southern Indian Lake (inflow) 593 20,947    735 25,954

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.