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 Saturday, May 3, 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 187.8 616.3    187.8 616.2
Fidler Lake 229.1 751.6    229.1 751.6
Footprint Lake 242.5 795.6 243797.4Water level expected to rise. 241.1 791
Northern Indian Lake 234.5 769.4    234.6 769.6
Partridge Breast Lake 241.9 793.6    241.9 793.7
Southern Indian Lake 257.2 843.9 257.4844.3Water level expected to rise. 257.3 844.2
Thompson Seaplane Base 186.9 613.2 187.2614.1Water level expected to rise. 185.7 609.1

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 207 679.2 207.1679.4Water level expected to rise. 206.6 677.9
Keeyask Forebay 158.5 520.1    158.7 520.7
Kelsey Forebay 183.7 602.7 184.2604.3Water level expected to rise. 184.3 604.7
Lake Winnipeg ‡ 217.2 712.5 217.2712.5No significant change to water level expected. 217.1 712.2
Norway House 216.9 711.7 217711.8Water level expected to rise. 216.9 711.5
Playgreen Lake 216.8 711.2    216.9 711.8
Sipiwesk Lake 184.8 606.4 185606.8Water level expected to rise. 185.1 607.2
Split Lake 166.7 546.8 166.8547.3Water level expected to rise. 166.1 545.1
Stephens Lake 139.9 458.9    140.3 460.1

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 255.6 838.4 255.8839.1Water level expected to rise. 256.1 840.4
South Moose Lake 256 840 256840No significant change to water level expected. 255.9 839.7

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 274.5 900.6 274.7901.3Water level expected to rise. 274.3 899.8
Margaret/Eleanor Lake 274.3 899.9 274.5900.6Water level expected to rise. 274.2 899.5
Nutimik Lake 274.6 901 274.9901.9Water level expected to rise. 274.3 899.9
Pine Falls (below Generating Station) 217.8 714.7    217.5 713.6
Pointe du Bois (below Generating Station) 284.9 934.7    284.7 934.1
Sylvia Lake 274.2 899.5 274.4900.1Water level expected to rise. 274.1 899.3

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.

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 64 2,272    37 1,314
Grass River 28 988    32 1,118
Gunisao River 36 1,288    21 740
Jenpeg (outflow) 1,386 48,959    859 30,350
Kelsey (outflow) 1,675 59,136    1,322 46,683
Kettle (outflow) 2,760 97,475    2,612 92,229
Lake Winnipeg (outflow) 1,612 56,934    1,083 38,232
Missi Falls Control Structure 46 1,617 21750Water level expected to fall. 49 1,741
Notigi Control Structure 749 26,466    423 14,954
Odei River 24 851    56 1,965
Pine Falls (outflow) 925 32,653    715 25,256
Southern Indian Lake (inflow) 563 19,879    615 21,736

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.