Report compiled by Dr Scott Forbes
Calm winds on Sunday morning gave us a glimpse of the real lake levels right now. Lake Manitoba is currently sitting at 810.42 feet, 0.08 ft below the lower end of its desired operating range. Outflow at Fairford River remains low at just 710 cfs. Flow on the Waterhen River is also low at 1,632 cfs. Lake Winnipegosis is little changed from last week at 829.88 feet. Flow on the Whitemud River has dropped to just 17 cfs. Lake St. Martin is down to 796.52 feet, well below the lower end of the desired operating range of 797.0 feet. Flow on the Dauphin River is down to 883 cfs this week. Flow on the Assiniboine is falling, to 554 cfs at Holland and 498 cfs at Headingly. The level of the Shellmouth Reservoir is down on the week to 1400.79 feet.
River update
Time: September 13, 2021
Portage Diversion: closed
Assiniboine at Holland: 554 cfs
Assiniboine at Headingly: 498 cfs
Waterhen: 1,632 cfs
Whitemud: 17 cfs
Fairford: 710 cfs
Dauphin: 883 cfs
Lake update
Time: September 13, 2021
Steep Rock: 810.30 ft
Westbourne: 810.53 ft
Mean level Lake Manitoba: 810.42 ft
Lake Manitoba desired operating range: 810.5 to 812.5 ft
Lake St. Martin: 796.52 ft
Lake St. Martin desired operating range: 797.0 to 800.0 ft
Lake Winnipegosis: 829.88 ft
Shellmouth Reservoir: 1400.79 ft
Extracted from the Environment and Climate Change Canada Real-time Hydrometric Data web site (https://wateroffice.ec.gc.ca/mainmenu/real_time_data_index_e.html) on September 13, 2021.
Association of Lake Manitoba Stakeholders 