Water levels & flows

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Nearly all of the electricity we produce is clean, renewable power 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, August 31, 2024 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 187.6 615.4    187.9 616.5
Fidler Lake 228.9 751    229.3 752.3
Footprint Lake 242 793.9 241.5792.3Water level expected to fall. 242.3 794.9
Northern Indian Lake 234.5 769.3    234.7 770.1
Partridge Breast Lake 241.8 793.3    241.8 793.4
Southern Indian Lake 258 846.5 258846.6Water level expected to rise. 258 846.3
Thompson Seaplane Base 186.4 611.5 185.9609.8Water 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 207.5 680.8 207.5680.9Water level expected to rise. 207.1 679.5
Keeyask Forebay 158.8 521.1    158.6 520.2
Kelsey Forebay 184.3 604.6 184.3604.7Water level expected to rise. 184.3 604.8
Lake Winnipeg ‡ 217.8 714.5 217.7714.4Water level expected to fall. 217.5 713.5
Norway House 217.5 713.6 217.5713.5Water level expected to fall. 217.3 712.9
Playgreen Lake 217.5 713.5    217.3 713.1
Sipiwesk Lake 185.9 609.8 185.9610Water level expected to rise. 185.4 608.2
Split Lake 167.1 548.1 166.9547.7Water level expected to fall. 166.7 546.9
Stephens Lake 140.4 460.7    140.3 460.4

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.

‡ 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 256.4 841.2 256.4841.1Water level expected to fall. 256 839.7
South Moose Lake 256.3 840.9 256.3840.9No significant change to water level expected. 255.8 839.3

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 274.8 901.7 274.7901.2Water level expected to fall. 274.2 899.5
Margaret/Eleanor Lake 274.5 900.6 274.4900.4Water level expected to fall. 274.2 899.5
Nutimik Lake 275.1 902.5 274.9901.9Water level expected to fall. 274.2 899.5
Pine Falls (below Generating Station) 218.4 716.5    217.4 713.3
Pointe du Bois (below Generating Station) 285.1 935.3    284.7 934
Sylvia Lake 274.3 899.9 274.2899.7Water level expected to fall. 274.1 899.4

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 17 606    13 469
Grass River 76 2,701    79 2,801
Gunisao River 16 557    7 259
Jenpeg (outflow) 1,991 70,328    1,282 45,289
Kelsey (outflow) 2,306 81,444    1,739 61,413
Kettle (outflow) 3,275 115,649    2,033 71,791
Lake Winnipeg (outflow) 2,466 87,077    1,673 59,072
Missi Falls Control Structure 21 742 20700Water level expected to fall. 21 739
Notigi Control Structure 520 18,378    640 22,593
Odei River 17 610    43 1,524
Pine Falls (outflow) 1,241 43,820    194 6,841
Southern Indian Lake (inflow) 708 25,004    729 25,742

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.