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 Friday, August 7, 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    187.3 614.5
Fidler Lake 230 754.5    228.6 750
Footprint Lake 243.5 798.7 243.5798.7No significant change to water level expected. 240.9 790.2
Northern Indian Lake        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 187.6 615.5 187.5615.3Water level expected to fall. 185 606.9

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 208.2 683.2 208682.5Water level expected to fall. 206.6 677.7
Keeyask Forebay 158.9 521.3    158.7 520.8
Kelsey Forebay 184.3 604.8 184.3604.8No significant change to water level expected. 184.3 604.7
Lake Winnipeg ‡ 217.8 714.7 217.8714.7No significant change to water level expected. 217.3 712.9
Norway House 217.4 713.4 217.5713.6Water level expected to rise. 217.3 712.8
Playgreen Lake 217.3 712.8    217.3 713.1
Sipiwesk Lake 187.1 614 187.1614No significant change to water level expected. 184.9 606.7
Split Lake 168.2 552 168.2551.8Water level expected to fall. 165.8 543.9
Stephens Lake 140.9 462.4    140.2 460.1

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. 256 839.9
South Moose Lake 256.4 841.3 256.5841.4Water 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 274.3 899.9 274.3900Water level expected to rise. 274.3 899.9
Margaret/Eleanor Lake 274.2 899.6 274.2899.7Water level expected to rise. 274.2 899.7
Nutimik Lake 274.3 900.1 274.4900.3Water level expected to rise. 274.3 900
Pine Falls (below Generating Station) 217.9 714.9    217.3 712.9
Pointe du Bois (below Generating Station) 284.7 934.2    284.7 934.2
Sylvia Lake 274.1 899.4 274.2899.5Water level expected to rise. 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 34 1,192    12 415
Grass River 145 5,129    41 1,458
Gunisao River 33 1,169    5 187
Jenpeg (outflow) 2,954 104,321    857 30,247
Kelsey (outflow) 3,538 124,930    1,125 39,717
Kettle (outflow) 4,406 155,599    1,613 56,968
Lake Winnipeg (outflow) 3,400 120,073    1,235 43,612
Missi Falls Control Structure 143 5,034 903,179Water level expected to fall. 20 703
Notigi Control Structure 989 34,938    429 15,135
Odei River 73 2,576    4 155
Pine Falls (outflow) 561 19,800    511 18,031
Southern Indian Lake (inflow) 1,118 39,465    471 16,647

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.

Back to top

Notifications and forecasts

Read all archived notifications and forecasts.

Back to top

Further reading

Back to top