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 Thursday, August 13, 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 188.3 617.9    187.3 614.6
Fidler Lake 229.9 754.2    228.6 750
Footprint Lake 243.4 798.7 243.4798.7No significant change to water level expected. 240.8 790.2
Northern Indian Lake 235.1 771.2    234.2 768.5
Partridge Breast Lake 242.3 795    241.8 793.3
Southern Indian Lake 258.2 847.2 258.2847.1Water level expected to fall. 257.7 845.4
Thompson Seaplane Base 187.6 615.4 187.4614.9Water 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 208.1 682.7 207.8681.7Water level expected to fall. 206.6 677.7
Keeyask Forebay 158.9 521.2    158.7 520.6
Kelsey Forebay 184.3 604.8 184.3604.8No significant change to water level expected. 184.3 604.8
Lake Winnipeg ‡ 217.8 714.5 217.7714.3Water level expected to fall. 217.3 713
Norway House 217.4 713.3 217.3713Water level expected to fall. 217.1 712.2
Playgreen Lake 217.3 713    217 712
Sipiwesk Lake 187 613.7 186.9613.1Water level expected to fall. 185 606.9
Split Lake 168.2 551.7 168.1551.4Water level expected to fall. 165.7 543.8
Stephens Lake 141 462.6    140.3 460.2

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 256.5 841.5 256.5841.5No significant change to water level expected. 256.1 840.1
South Moose Lake 256.4 841.2 256.5841.5Water level expected to rise. 255.9 839.6

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. 274.3 899.9
Margaret/Eleanor Lake 274.1 899.4 274.1899.3Water level expected to fall. 274.2 899.7
Nutimik Lake 274.2 899.7 274.2899.7No significant change to water level expected. 274.3 900
Pine Falls (below Generating Station) 217.9 714.9    217.7 714.3
Pointe du Bois (below Generating Station) 284.7 934    284.7 934.1
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 30 1,048    10 357
Grass River 141 4,985    40 1,402
Gunisao River 29 1,032    6 210
Jenpeg (outflow) 2,595 91,627    842 29,730
Kelsey (outflow) 3,505 123,772    1,049 37,045
Kettle (outflow) 4,915 173,572    1,429 50,467
Lake Winnipeg (outflow) 3,027 106,892    1,146 40,483
Missi Falls Control Structure 142 5,025 1425,000Water level expected to fall. 20 719
Notigi Control Structure 988 34,887    430 15,183
Odei River 62 2,196    4 133
Pine Falls (outflow) 501 17,688    503 17,770
Southern Indian Lake (inflow) 1,060 37,435    601 21,215

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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