May 10, 2020
Wind is again playing havoc with the gauges that make the readings of lake levels and river flows highly uncertain. The nominal level of levels of Lake Manitoba is 811.48 feet, reading 810.98 feet at Steep Rock and 811.98 feet at Westbourne. Due to the low level at Steep Rock, outflow at Fairford is way down to 1,307 cfs: the flow will rise again when the wind shifts to its normal westerly direction. The level of Lake St. Martin is up from last week, sitting at 798.98 feet this morning. Flow on the Assiniboine at Holland is 4,838 cfs, and 4,732 cfs at Headingly, and is dropping at both locations. Flow on the Whitemud River fell to 441 cfs after a dry week. The flow on the Waterhen continues to rise reaching 4,379 cfs. The level of Lake Winnipegosis is 831.23 feet this week, a level that is wind affected. Flow on the Dauphin River is down to 3,267 cfs. The level of the Shellmouth Reservoir is rising and currently sitting at 1401.64 feet.
River update
Time: 9:00 AM May 10, 2020
Portage Diversion: closed
Assiniboine at Holland: 4,838 cfs
Assiniboine at Headingly: 4,732 cfs
Waterhen: 4,379 cfs
Whitemud: 441 cfs
Fairford: 1,307 cfs
Dauphin: 3,267 cfs
Lake update
Time: 9:00 AM May 10, 2020
Steep Rock: 810.98 ft
Westbourne: 811.98 ft
Mean level Lake Manitoba: 811.48 ft
Lake Manitoba desired operating range: 810.5 to 812.5 ft
Lake St. Martin: 798.98 ft
Lake St. Martin desired operating range: 797.0 to 800.0 ft
Lake Winnipegosis: 831.23 ft
Shellmouth Reservoir: 1401.64 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 May 10, 2020.