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 Sunday, June 8, 2025 at 4:01 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 187.8 616.3    188.4 618.1
Fidler Lake 229.2 752    229.7 753.6
Footprint Lake 242.4 795.4 241.8793.3Water level expected to fall. 241.4 792
Northern Indian Lake 234.7 770    235 770.9
Partridge Breast Lake 241.8 793.4    241.8 793.4
Southern Indian Lake 257.5 844.7 257.6845.2Water level expected to rise. 257.7 845.4
Thompson Seaplane Base 186.8 612.9 186.3611.1Water level expected to fall. 185.9 609.8

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 206.8 678.5 206.8678.6Water level expected to rise. 207.2 679.8
Keeyask Forebay 158.7 520.8    158.7 520.7
Kelsey Forebay 184.4 604.9 184.3604.7Water level expected to fall. 184.3 604.6
Lake Winnipeg ‡ 217.3 712.9 217.3713Water level expected to rise. 217.3 713.1
Norway House 217.3 712.8 217.2712.5Water level expected to fall. 217.1 712.2
Playgreen Lake 217.3 712.9    217 711.9
Sipiwesk Lake 185.1 607.2 185.1607.2No significant change to water level expected. 185.4 608.3
Split Lake 166.4 545.9 166.2545.4Water level expected to fall. 166.6 546.4
Stephens Lake 140 459.3    140.6 461.2

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 255.9 839.4 256839.9Water level expected to rise. 256.5 841.5
South Moose Lake 255.9 839.7 256.1840.1Water level expected to rise. 256.1 840.3

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

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.5 900.5 274.5900.5No significant change to water level expected. 275 902.2
Margaret/Eleanor Lake 274.3 899.9 274.3900Water level expected to rise. 274.7 901.2
Nutimik Lake 274.6 900.8 274.6900.9Water level expected to rise. 275.3 903.2
Pine Falls (below Generating Station) 217.6 714    218.4 716.5
Pointe du Bois (below Generating Station) 284.9 934.8    285.2 935.8
Sylvia Lake 274.2 899.5 274.2899.6Water level expected to rise. 274.4 900.4

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 39 1,362    70 2,467
Grass River 39 1,391    67 2,359
Gunisao River 17 615    51 1,803
Jenpeg (outflow) 1,060 37,438    1,769 62,487
Kelsey (outflow) 1,312 46,321    1,812 63,997
Kettle (outflow) 1,708 60,315    3,026 106,849
Lake Winnipeg (outflow) 1,438 50,791    2,071 73,140
Missi Falls Control Structure 21 727 20700Water level expected to fall. 20 704
Notigi Control Structure 574 20,274    428 15,128
Odei River 30 1,057    84 2,963
Pine Falls (outflow) 825 29,122    1,519 53,653
Southern Indian Lake (inflow) 928 32,779    1,133 40,006

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.