Water levels & flows

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 Tuesday, August 11, 2026 at 4:15 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 188.4 618    187.3 614.5
Fidler Lake 229.9 754.3    228.6 749.9
Footprint Lake 243.4 798.7 243.4798.7No significant change to water level expected. 240.8 790.2
Northern Indian Lake 235.1 771.3    234.2 768.5
Partridge Breast Lake 242.3 795    241.8 793.3
Southern Indian Lake 258.2 847.2 258.2847Water level expected to fall. 257.7 845.4
Thompson Seaplane Base 187.6 615.4 187.5615.2Water level expected to fall. 185.1 607.3

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 208.1 682.9 207.9682.1Water level expected to fall. 206.6 677.8
Keeyask Forebay 158.9 521.3    158.7 520.7
Kelsey Forebay 184.3 604.8 184.3604.8No significant change to water level expected. 184.4 604.9
Lake Winnipeg ‡ 217.8 714.6 217.8714.6No significant change to water level expected. 217.3 713
Norway House 217.4 713.2 217.5713.6Water level expected to rise. 217.1 712.3
Playgreen Lake 217.3 712.8    217.1 712.2
Sipiwesk Lake 187.1 613.8 187613.7Water level expected to fall. 185 606.9
Split Lake 168.2 551.8 168.1551.7Water level expected to fall. 165.7 543.7
Stephens Lake 141 462.7    140.1 459.7

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.

‡ 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 256.5 841.5 256.5841.5No significant change to water level expected. 256.1 840.1
South Moose Lake 256.4 841.3 256.5841.5Water level expected to rise. 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 274.2 899.6 274.2899.5Water level expected to fall. 274.3 899.8
Margaret/Eleanor Lake 274.1 899.4 274.1899.3Water level expected to fall. 274.2 899.6
Nutimik Lake 274.2 899.7 274.2899.7No significant change to water level expected. 274.3 899.8
Pine Falls (below Generating Station) 217.9 714.9    217.5 713.7
Pointe du Bois (below Generating Station) 284.7 934.1    284.8 934.2
Sylvia Lake 274.1 899.3 274.1899.2Water level expected to fall. 274.2 899.5

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 32 1,122    11 373
Grass River 144 5,087    40 1,423
Gunisao River 31 1,092    6 216
Jenpeg (outflow) 2,726 96,284    844 29,805
Kelsey (outflow) 3,577 126,316    1,014 35,825
Kettle (outflow) 5,083 179,518    1,160 40,954
Lake Winnipeg (outflow) 3,154 111,373    1,154 40,760
Missi Falls Control Structure 143 5,036 21750Water level expected to fall. 20 723
Notigi Control Structure 988 34,890    430 15,172
Odei River 67 2,364    4 127
Pine Falls (outflow) 466 16,451    440 15,540
Southern Indian Lake (inflow) 1,085 38,312    527 18,624

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.

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Notifications and forecasts

Read all archived notifications and forecasts.

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Further reading

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