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 Friday, October 31, 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 187.9 616.4    187.8 616.1
Fidler Lake 229.3 752.2    229.3 752.2
Footprint Lake 241 790.8 241.2791.3Water level expected to rise. 240.9 790.2
Northern Indian Lake 234.7 770.1    234.7 770.2
Partridge Breast Lake 242 794    242 794
Southern Indian Lake 258 846.4 258846.5Water level expected to rise. 258.2 847
Thompson Seaplane Base 185.5 608.5 185.4608.2Water level expected to fall. 185.1 607.2

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 206.7 678.3 206.9678.9Water level expected to rise. 207.6 681
Keeyask Forebay 158.9 521.2    158.7 520.6
Kelsey Forebay 184 603.5 184.2604.3Water level expected to rise. 184.3 604.6
Lake Winnipeg ‡ 217.2 712.5 217.2712.5No significant change to water level expected. 217.4 713.2
Norway House 217 711.9 216.9711.7Water level expected to fall. 217.1 712.2
Playgreen Lake 217 712    217 712
Sipiwesk Lake 184.7 606 184.9606.5Water level expected to rise. 186 610.3
Split Lake 166.1 544.9 166.2545.1Water level expected to rise. 167 547.8
Stephens Lake 140.5 461.1    140.8 462

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 256.4 841.2 256.4841.2No significant change to water level expected. 256.3 841
South Moose Lake 256.1 840.4 256.1840.4No significant change to water level expected. 256.3 840.8

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.

Winnipeg River

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.2 899.6 274.2899.7Water level expected to rise. 274.3 899.9
Margaret/Eleanor Lake 274.2 899.5 274.2899.5No significant change to water level expected. 274.2 899.5
Nutimik Lake 274.2 899.6 274.2899.7Water level expected to rise. 274.3 900
Pine Falls (below Generating Station) 217.1 712.3    217.7 714.4
Pointe du Bois (below Generating Station) 284.7 934    284.8 934.3
Sylvia Lake 274.1 899.4 274.1899.4No 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 33 1,175    10 356
Grass River 32 1,128    42 1,499
Gunisao River 8 279    10 348
Jenpeg (outflow) 1,267 44,748    2,326 82,137
Kelsey (outflow) 1,276 45,051    2,539 89,670
Kettle (outflow) 2,341 82,657    3,267 115,376
Lake Winnipeg (outflow) 1,539 54,343    2,630 92,874
Missi Falls Control Structure 95 3,341 1204,250Water level expected to rise. 98 3,445
Notigi Control Structure 429 15,161    428 15,115
Odei River 80 2,828    29 1,012
Pine Falls (outflow) 377 13,305    579 20,431
Southern Indian Lake (inflow) 623 21,990    429 15,155

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.