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, September 29, 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 188 616.9    187.6 615.4
Fidler Lake 229.3 752.3    228.8 750.8
Footprint Lake 243 797.2 242.8796.7Water level expected to fall. 240.8 790.2
Northern Indian Lake 234.7 770    234.4 769.2
Partridge Breast Lake 241.8 793.4    241.8 793.3
Southern Indian Lake 258.2 847 258.2847No significant change to water level expected. 257.9 846.1
Thompson Seaplane Base 187.1 613.7 186.9613.2Water level expected to fall. 185.1 607.4

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 207.6 680.9 207.3680.2Water level expected to fall. 206.4 677.3
Keeyask Forebay 158.8 520.9    158.7 520.8
Kelsey Forebay 184.3 604.8 184.3604.8No significant change to water level expected. 184.3 604.8
Lake Winnipeg ‡ 217.6 714.1 217.6713.9Water level expected to fall. 217.2 712.6
Norway House 217.5 713.7 217.4713.2Water level expected to fall. 217 712
Playgreen Lake 217.6 714    217.1 712.2
Sipiwesk Lake 185.4 608.1 185.5608.5Water level expected to rise. 184.9 606.6
Split Lake 166.8 547.3 166.8547.2Water level expected to fall. 165.8 543.8
Stephens Lake 140.1 459.6    140.8 461.8

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.

‡ 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 256.5 841.6 256.5841.6No significant change to water level expected. 256.3 840.9
South Moose Lake 256.4 841.2 256.4841.3Water level expected to rise. 256 840

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 274.2 899.7 274.2899.5Water level expected to fall. 274.2 899.5
Margaret/Eleanor Lake 274.2 899.5 274.1899.4Water level expected to fall. 274.1 899.4
Nutimik Lake 274.3 899.8 274.2899.6Water level expected to fall. 274.2 899.5
Pine Falls (below Generating Station) 217.6 714.1    217.3 712.8
Pointe du Bois (below Generating Station) 284.7 934    284.7 934
Sylvia Lake 274.1 899.3 274.1899.3No significant change to water level expected. 274.1 899.3

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 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 22 786    10 345
Grass River 95 3,371    31 1,110
Gunisao River 18 635    2 84
Jenpeg (outflow) 1,551 54,773    708 25,014
Kelsey (outflow) 1,795 63,401    1,002 35,381
Kettle (outflow) 3,387 119,607    1,384 48,876
Lake Winnipeg (outflow) 2,039 71,999    990 34,967
Missi Falls Control Structure 25 898 642,250Water level expected to rise. 21 739
Notigi Control Structure 852 30,095    426 15,050
Odei River 50 1,749    20 689
Pine Falls (outflow) 379 13,401    379 13,368
Southern Indian Lake (inflow) 810 28,598    608 21,486

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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