Water levels & flows

More in this section

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 Sunday, March 16, 2025 at 1:00 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 187.8 616.2    187.8 616.2
Fidler Lake 229.3 752.2    229.2 752.1
Footprint Lake 242.4 795.3 242.4795.1Water level expected to fall. 241.5 792.4
Northern Indian Lake 234.5 769.4    234.5 769.4
Partridge Breast Lake        241.9 793.7
Southern Indian Lake 257.5 844.7 257.4844.3Water level expected to fall. 257.3 844.1
Thompson Seaplane Base 186.9 613 186.7612.4Water level expected to fall. 186.1 610.7

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.

Nelson River

Actual and forecasted water levels for Nelson River.
Name Current level7-day forecast This day last year
Cross Lake 207.6 681.2 207.4680.4Water level expected to fall. 207.1 679.4
Keeyask Forebay 158.6 520.3    158.7 520.8
Kelsey Forebay 183.2 601 183.2601No significant change to water level expected. 183.9 603.2
Lake Winnipeg ‡ 217.2 712.5 217.2712.5No significant change to water level expected. 217 712
Norway House 216.8 711.2 216.7710.9Water level expected to fall. 216.6 710.7
Playgreen Lake 215.8 708    215.6 707.2
Sipiwesk Lake 185.3 608 185.3608No significant change to water level expected. 185.2 607.8
Split Lake 167.6 550 167.3548.9Water level expected to fall. 166.7 546.8
Stephens Lake 140.1 459.6    140.6 461.4

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 255.2 837.1 255.2837.2Water level expected to rise. 255.7 839.1
South Moose Lake 256.1 840.4 256.1840.3Water level expected to fall. 255.8 839.4

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.

Winnipeg River

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.4 900.4    274.4 900.2
Margaret/Eleanor Lake 274.3 899.9    274.3 899.8
Nutimik Lake 274.5 900.6    274.4 900.4
Pine Falls (below Generating Station) 217.7 714.2    217.5 713.6
Pointe du Bois (below Generating Station) 284.8 934.5    284.8 934.3
Sylvia Lake 274.2 899.6    274.2 899.6

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 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 5 191    5 179
Grass River 27 966    25 873
Gunisao River 5 184    5 166
Jenpeg (outflow) 1,856 65,559    1,507 53,202
Kelsey (outflow) 2,130 75,226    1,662 58,682
Kettle (outflow) 2,051 72,428    2,419 85,421
Lake Winnipeg (outflow) 2,039 72,021    1,647 58,174
Missi Falls Control Structure     481,699Water level expected to rise. 49 1,736
Notigi Control Structure 708 24,986    496 17,529
Odei River 7 239    6 200
Pine Falls (outflow) 780 27,529    781 27,576
Southern Indian Lake (inflow) -2,702 -95,415    463 16,358

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.