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, September 10, 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 187.6 615.6    187.5 615.3
Fidler Lake 228.9 751    228.9 750.9
Footprint Lake 240.8 790 240.9790.2Water level expected to rise. 241.5 792.3
Northern Indian Lake 234.5 769.3    234.4 769.2
Partridge Breast Lake 241.8 793.3    241.8 793.3
Southern Indian Lake 257.8 845.8 257.9846.1Water level expected to rise. 258 846.6
Thompson Seaplane Base 185.2 607.6 185.1607.3Water level expected to fall. 186 610.3

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 206.5 677.6 206.7678Water level expected to rise. 207.5 680.8
Keeyask Forebay 158.8 521    158.6 520.3
Kelsey Forebay 184.3 604.7 184.3604.8Water level expected to rise. 184.3 604.7
Lake Winnipeg ‡ 217.2 712.7 217.2712.7No significant change to water level expected. 217.7 714.3
Norway House 217.1 712.1 217.1712.2Water level expected to rise. 217.5 713.5
Playgreen Lake 217 712.1    217.5 713.6
Sipiwesk Lake 184.9 606.7 184.9606.7No significant change to water level expected. 185.9 609.8
Split Lake 165.8 543.9 165.7543.6Water level expected to fall. 167 547.8
Stephens Lake 140.5 461    140.7 461.6

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 256.2 840.6 256.2840.7Water level expected to rise. 256.4 841.2
South Moose Lake 256 839.8 256839.8No significant change to water level expected. 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 274.2 899.5 274.2899.5No significant change to water level expected. 274.4 900.4
Margaret/Eleanor Lake 274.1 899.3 274.1899.3No significant change to water level expected. 274.2 899.6
Nutimik Lake 274.1 899.4 274.2899.5Water level expected to rise. 274.6 900.8
Pine Falls (below Generating Station) 217.4 713.2    218 715.3
Pointe du Bois (below Generating Station) 284.6 933.7    284.9 934.8
Sylvia Lake 274.1 899.2 274.1899.2No significant change to water level expected. 274.1 899.1

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 9 304    13 463
Grass River 34 1,187    63 2,216
Gunisao River 4 139    15 512
Jenpeg (outflow) 857 30,275    2,053 72,517
Kelsey (outflow) 1,058 37,367    2,337 82,536
Kettle (outflow) 1,922 67,880    3,037 107,265
Lake Winnipeg (outflow) 1,153 40,733    2,522 89,061
Missi Falls Control Structure 20 723 20720Water level expected to fall. 21 732
Notigi Control Structure 424 14,975    423 14,952
Odei River 23 820    18 643
Pine Falls (outflow) 423 14,935    1,002 35,372
Southern Indian Lake (inflow) 427 15,094    585 20,662

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.