It has been a week of little change. The level of Lake Manitoba is down slightly to 812.32 feet. Outflow at Fairford is also down to 5,898 cfs, while flow downstream on the Dauphin River fell to 6,392 cfs. Inflow to Lake Manitoba is up, to 4,132 cfs on the Waterhen River (unchanged from last week) and 239 cfs on the Whitemud River. The level of Lake St. Martin is down slightly to 800.62 feet. The level of Lake Winnipegosis is unchanged at 830.90 feet. Flow on the Assiniboine continues to fall to 893 cfs at Holland, and 1,084 cfs at Headingly. The Shellmouth Reservoir continues to drop, falling to 1400.57 feet this morning.
Lake update
Time: September 27, 2022
Steep Rock: 812.14 ft
Westbourne: 812.50 ft
Mean level Lake Manitoba: 812.32 ft
Lake Manitoba desired operating range: 810.5 to 812.5 ft
Lake St. Martin: 800.62 ft
Lake St. Martin desired operating range: 797.0 to 800.0 ft
Lake Winnipegosis: 830.90 ft
Shellmouth Reservoir: 1,400.57 ft
River update
Time: September 27, 2022
Portage Diversion: closed
Assiniboine at Holland: 893 cfs
Assiniboine at Headingly: 1,084 cfs
Waterhen: 4,132 cfs
Whitemud: 239 cfs
Fairford: 5,898 cfs
Dauphin: 6,392 cfs
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 27, 2022.
Association of Lake Manitoba Stakeholders 