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 Thursday, June 12, 2025 at 1:01 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    188.7 619
Fidler Lake 229.2 751.9    230.3 755.7
Footprint Lake 242.1 794.4 241.7792.9Water level expected to fall. 241.4 792
Northern Indian Lake 234.7 769.9    235.3 772
Partridge Breast Lake 241.8 793.4    241.8 793.4
Southern Indian Lake 257.5 844.8 257.7845.3Water level expected to rise. 257.8 845.7
Thompson Seaplane Base 186.6 612.1 186.1610.4Water level expected to fall. 185.8 609.7

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 206.8 678.5 206.9678.7Water level expected to rise. 207.3 680
Keeyask Forebay 158.8 520.8    158.4 519.7
Kelsey Forebay 184.4 604.9 184.3604.7Water level expected to fall. 184.3 604.7
Lake Winnipeg ‡ 217.3 712.9 217.3713Water level expected to rise. 217.4 713.2
Norway House 217.1 712.2 217.2712.5Water level expected to rise. 217.1 712.3
Playgreen Lake 217.1 712.1    217 712.1
Sipiwesk Lake 185.1 607.4 185.1607.2Water level expected to fall. 185.5 608.7
Split Lake 166.3 545.5 166.2545.2Water level expected to fall. 166.7 546.9
Stephens Lake 140.4 460.6    140.6 461.2

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 255.9 839.5 256840Water level expected to rise. 256.5 841.5
South Moose Lake 255.9 839.7 256.1840.1Water level expected to rise. 256.2 840.4

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 274.4 900.2 274.3900.1Water level expected to fall. 275.1 902.5
Margaret/Eleanor Lake 274.2 899.7 274.2899.7No significant change to water level expected. 274.7 901.4
Nutimik Lake 274.5 900.5 274.4900.3Water level expected to fall. 275.4 903.6
Pine Falls (below Generating Station) 217.8 714.4    218.5 716.8
Pointe du Bois (below Generating Station) 284.8 934.4    285.3 936
Sylvia Lake 274.1 899.3 274.1899.4Water level expected to rise. 274.5 900.5

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 34 1,206    67 2,350
Grass River 39 1,385    76 2,692
Gunisao River 17 601    48 1,684
Jenpeg (outflow) 1,070 37,803    1,852 65,401
Kelsey (outflow) 1,282 45,270    1,973 69,691
Kettle (outflow) 2,730 96,394    3,089 109,092
Lake Winnipeg (outflow) 1,376 48,578    2,168 76,557
Missi Falls Control Structure 21 735 20700Water level expected to fall. 19 669
Notigi Control Structure 503 17,753    426 15,040
Odei River 27 945    108 3,806
Pine Falls (outflow) 807 28,513    1,654 58,402
Southern Indian Lake (inflow) 858 30,296    1,014 35,812

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.