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 Thursday, July 3, 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 187.6 615.4    188.5 618.3
Fidler Lake 228.9 751.1    230.1 755
Footprint Lake 241.2 791.4 241.1791Water level expected to fall. 242.5 795.5
Northern Indian Lake 234.5 769.3    235.2 771.5
Partridge Breast Lake 241.8 793.3    242 794.1
Southern Indian Lake 257.6 845.2 257.8845.7Water level expected to rise. 258.1 846.9
Thompson Seaplane Base 185.7 609.1 185.4608.2Water level expected to fall. 186.4 611.4

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 206.6 677.8 206.7678.3Water level expected to rise. 207.4 680.6
Keeyask Forebay 158.7 520.6    158.6 520.2
Kelsey Forebay 184.4 604.8 184.3604.8No significant change to water level expected. 184.3 604.6
Lake Winnipeg ‡ 217.3 713.1 217.4713.1No significant change to water level expected. 217.6 713.8
Norway House 217.2 712.6 217.2712.6No significant change to water level expected. 217.3 712.9
Playgreen Lake 217.2 712.5    217.3 712.8
Sipiwesk Lake 185 606.9 185607Water level expected to rise. 185.7 609.2
Split Lake 166 544.7 165.9544.3Water level expected to fall. 166.9 547.7
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 256 839.8 255.9839.7Water level expected to fall. 256.5 841.6
South Moose Lake 256 839.7 255.9839.6Water level expected to fall. 256.2 840.7

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 274.3 899.9 274.3899.9No significant change to water level expected. 275.4 903.7
Margaret/Eleanor Lake 274.2 899.6 274.2899.6No significant change to water level expected. 275 902.2
Nutimik Lake 274.3 900.1 274.3900.1No significant change to water level expected. 275.9 905.1
Pine Falls (below Generating Station) 217.6 714    218.8 717.8
Pointe du Bois (below Generating Station) 284.8 934.3    285.6 936.9
Sylvia Lake 274.1 899.4 274.1899.4No significant change to water level expected. 274.6 900.9

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 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 31 1,105    84 2,960
Grass River 46 1,628    89 3,149
Gunisao River 18 641    39 1,362
Jenpeg (outflow) 847 29,895    1,854 65,480
Kelsey (outflow) 1,136 40,109    2,106 74,372
Kettle (outflow) 2,318 81,848    3,302 116,626
Lake Winnipeg (outflow) 1,190 42,029    2,244 79,250
Missi Falls Control Structure 21 735 21730Water level expected to fall. 71 2,498
Notigi Control Structure 427 15,090    908 32,055
Odei River 18 642    59 2,073
Pine Falls (outflow) 601 21,221    1,985 70,091
Southern Indian Lake (inflow) 627 22,145    824 29,096

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.