Lake Manitoba update: September 27, 2022 by Dr. Scott Forbes

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. 

Forum Announcement

Save the Date – CWRA MB Flood Workshop November 10, 2022Hello,   The Manitoba Branch of the CWRA (Canadian Water Resources Association) is planning an in-person Flood Workshop on November 10, 2022. You can expect an interactive program with a mix of technical presentations, stories from those who battled the flood, and a lively dialogue focused on how we can become more resilient to future flood events.   Additional information on the program, registration, and sponsorships is coming soon – so stay tuned! Please see the attached event poster, and feel free to circulate within your networks.   Any questions? Please contact us at mb@cwra.org. We look forward to seeing you at the event! https://cwra.org/en/mb-flood2022-workshop/

Lake Manitoba update: September 19, 2022 by Dr Scott Forbes

The level of Lake Manitoba continues to fall in the dry weather, sitting at 812.36 feet today. That is down a tenth of a foot from last week. Outflow at Fairford is also down to 6,286 cfs, while flow downstream on the Dauphin River is 6,745 cfs. Inflow to Lake Manitoba is up, to 4,132 cfs on the Waterhen River and 301 cfs on the Whitemud River. The level of Lake St. Martin is up slightly to 800.66 feet. The level of Lake Winnipegosis rose to 830.90 feet but that is also wind affected. Flow on the Assiniboine continues to fall to 1,038 cfs at Holland, and 1,232 cfs at Headingly. The Shellmouth Reservoir continues to drop, falling to 1400.90 feet this morning. 

Lake update 

Time: September 19, 2022 

Steep Rock: 812.34 ft 

Westbourne: 812.38 ft 

Mean level Lake Manitoba: 812.36 ft 

Lake Manitoba desired operating range: 810.5 to 812.5 ft 

Lake St. Martin: 800.66 ft 

Lake St. Martin desired operating range: 797.0 to 800.0 ft 

Lake Winnipegosis: 830.90 ft 

Shellmouth Reservoir: 1,400.75 ft 

River update 

Time: September 19, 2022 

Portage Diversion: closed 

Assiniboine at Holland: 1,038 cfs 

Assiniboine at Headingly: 1,232 cfs 

Waterhen: 4,132 cfs 

Whitemud: 301 cfs 

Fairford: 6,286 cfs 

Dauphin: 6,745 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 19, 2022. 

Lake Manitoba update: September 11, 2022 by Dr. Scott Forbes

After another dry week the level of Lake Manitoba has dropped back into its operating range (810.5 to 812.5 ft), sitting at 812.46 feet today. That is subject to some uncertainty as wind changes are affecting the lake level. Outflow at Fairford is down to 6,851 cfs, while flow downstream on the Dauphin River is 6,992 cfs. Inflow to Lake Manitoba from the Waterhen River is down to 3,849 cfs and 275 cfs from the Whitemud River. The level of Lake St. Martin dropped this week to 800.64 feet. The level of Lake Winnipegosis dropped to 830.55 feet but that is also wind affected. Flow on the Assiniboine continues to fall to 1,063 cfs at Holland, and 1,543 cfs at Headingly. The Shellmouth Reservoir continues to drop, falling to 1400.90 feet this morning.

Lake update

Time: September 11, 2022

Steep Rock: 812.45 ft

Westbourne: 812.47 ft

Mean level Lake Manitoba: 812.46 ft

Lake Manitoba desired operating range: 810.5 to 812.5 ft

Lake St. Martin: 800.55 ft

Lake St. Martin desired operating range: 797.0 to 800.0 ft

Lake Winnipegosis: 830.55 ft

Shellmouth Reservoir: 1,400.90 ft

River update

Time: September 11, 2022

Portage Diversion: closed

Assiniboine at Holland: 1,063 cfs

Assiniboine at Headingly: 1,543 cfs

Waterhen: 3,849 cfs

Whitemud: 275 cfs

Fairford: 6,851 cfs

Dauphin: 6,992 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 11, 2022.

Lake Manitoba update: September 6, 2022 by Dr. Scott Forbes

After another dry week the level of Lake Manitoba has dropped very slightly to 812.66 feet. Outflow at Fairford is currently 7,381 cfs, while flow downstream on the Dauphin River is 7,063 cfs. Inflow to Lake Manitoba from the Waterhen River is down to 4,414cfs and 310 cfs from the Whitemud River. The level of Lake St. Martin dropped this week to 800.82 feet. The level of Lake Winnipegosis dropped to 831.04 feet. Flow on the Assiniboine continues to fall to 1,296 cfs at Holland, and 1,586 cfs at Headingly. The Shellmouth Reservoir continues to drop, falling to 1401.19 feet this morning. 

Lake update 

Time: September 6, 2022 

Steep Rock: 812.68 ft 

Westbourne: 812.65 ft 

Mean level Lake Manitoba: 812.66 ft 

Lake Manitoba desired operating range: 810.5 to 812.5 ft 

Lake St. Martin: 800.82 ft 

Lake St. Martin desired operating range: 797.0 to 800.0 ft 

Lake Winnipegosis: 831.04 ft 

Shellmouth Reservoir: 1,401.19 ft 

River update 

Time: September 6, 2022 

Portage Diversion: closed 

Assiniboine at Holland: 1,296 cfs 

Assiniboine at Headingly: 1,586 cfs 

Waterhen: 4,414 cfs 

Whitemud: 310 cfs 

Fairford: 7,381 cfs 

Dauphin: 7,063 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 6, 2022.