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 Friday, December 5, 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 188 616.9    188 616.9
Fidler Lake 230 754.6    229.9 754.4
Footprint Lake 241.2 791.3 241.8793.4Water level expected to rise. 241.1 791.1
Northern Indian Lake 234.9 770.6    234.9 770.6
Partridge Breast Lake 242.2 794.6    242.2 794.6
Southern Indian Lake 257.9 846.2 257.8845.8Water level expected to fall. 258 846.6
Thompson Seaplane Base 185.9 609.9 186.4611.5Water level expected to rise. 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 207.2 679.8 207.2679.9Water level expected to rise. 207.4 680.5
Keeyask Forebay 158.7 520.8    158.7 520.7
Kelsey Forebay 184.4 604.8 184.3604.8No significant change to water level expected. 184.3 604.8
Lake Winnipeg ‡ 217.1 712.2 217.1712.2No significant change to water level expected. 217.3 712.9
Norway House 216.7 710.9 216.7711.1Water level expected to rise. 216.7 711
Playgreen Lake 216.4 710    216.7 710.8
Sipiwesk Lake 185.6 608.8 185.6609Water level expected to rise. 185.9 610
Split Lake 166.6 546.5 166.7547Water level expected to rise. 166.6 546.5
Stephens Lake 140.4 460.6    140.4 460.7

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.

‡ 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 256.3 840.8 256.2840.5Water level expected to fall. 256.4 841.1
South Moose Lake 256.2 840.7 256.2840.6Water level expected to fall. 256.3 840.9

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.

Winnipeg River

Actual and forecasted water levels for Winnipeg River.
Name Current level7-day forecast This day last year
Dorothy Lake 274.3 899.9 274.3899.9No significant change to water level expected. 274.4 900.4
Margaret/Eleanor Lake 274.2 899.6 274.2899.5Water level expected to fall. 274.3 900
Nutimik Lake 274.3 900 274.4900.1Water level expected to rise. 274.5 900.7
Pine Falls (below Generating Station) 217.3 713    217.9 714.9
Pointe du Bois (below Generating Station) 284.8 934.3    284.8 934.4
Sylvia Lake 274.1 899.3 274.1899.3No significant change to water level expected. 274.2 899.7

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.

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 11 382    9 311
Grass River 29 1,040    36 1,280
Gunisao River 4 158    12 435
Jenpeg (outflow) 1,756 62,008    2,279 80,465
Kelsey (outflow) 1,712 60,476    1,936 68,370
Kettle (outflow) 2,175 76,813    2,162 76,349
Lake Winnipeg (outflow) 1,910 67,444    2,447 86,405
Missi Falls Control Structure 121 4,280 1003,536Water level expected to fall. 119 4,204
Notigi Control Structure 565 19,967    563 19,896
Odei River 20 696    19 659
Pine Falls (outflow) 537 18,969    728 25,724
Southern Indian Lake (inflow) 499 17,627    537 18,969

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.