Lake Manitoba update: Aug. 13, 2017

This has been a week of little change. The level of Lake Manitoba is almost unchanged at 813.09 feet. Outflow on the Fairford River is down slightly to 11,124 cfs. Lake Winnipegosis is unchanged at 833.92 feet. Flow on the Waterhen River is down slightly to 9,782 cfs. Lake St. Martin fell this week to 802.95 feet and is now below flood level. Flow on the Assiniboine fell even further to 650 cfs at Holland and 759 cfs at Headingly.

River update
Time: 6:00 PM August 13, 2017
Portage Diversion: closed
Assiniboine at Holland: 650 cfs
Assiniboine at Headingly: 759 cfs
Waterhen: 9,782 cfs
Whitemud: 39 cfs
Fairford: 11,124 cfs
 
Lake update
Time: 6:00 PM August 13, 2017
Steep Rock: 813.09 ft
Westbourne: 813.09 ft
Mean level Lake Manitoba: 813.09 ft
Lake Manitoba desired operating range: 810.5 to 812.5 ft
Lake St. Martin: 802.95 ft
Lake St. Martin desired operating range: 797.0 to 800.0 ft
Lake Winnipegosis: 833.92 ft
Shellmouth Reservoir: 1394.69 ft

Lake Manitoba update: August 7, 2017

The update was delayed as I was unable to access the Environment Canada site yesterday; it is still very slow to respond today.

The theme for this week is down. Rivers and lakes are all down in the summer heat. Lake Manitoba dropped nearly 2/10ths of a foot to 813.08 feet. With the lower lake level, outflow on the Fairford River is down to 11,336 cfs. Lake Winnipegosis is down to 833.92 feet, and as a result flow on the Waterhen River is down to 9,994 cfs. Lake St. Martin fell this week to 803.05, still above flood level. Flow on the Assiniboine is now a trickle, being 749 cfs at Holland and 777 cfs at Headingly.

River update
Time: 9:00 AM August 7, 2017
Portage Diversion: closed
Assiniboine at Holland: 749 cfs
Assiniboine at Headingly: 777 cfs
Waterhen: 9,994 cfs
Whitemud: 49 cfs
Fairford: 11,336 cfs
 
Lake update
Time: 9:00 AM August 7, 2017
Steep Rock: 813.14 ft
Westbourne: 813.03 ft
Mean level Lake Manitoba: 813.08 ft
Lake Manitoba desired operating range: 810.5 to 812.5 ft
Lake St. Martin: 803.05 ft
Lake St. Martin desired operating range: 797.0 to 800.0 ft
Lake Winnipegosis: 833.92 ft
Shellmouth Reservoir: 1400.92 ft

Lake Manitoba update: July 30, 2017

This has been an uneventful week on Lake Manitoba. The level of the lake this week  is almost exactly the same as last week, currently sitting at 813.26 feet. Outflow on the Fairford River (currently 12,113 cfs) exceeds inflow from the Waterhen River (10,595 cfs). Lake St. Martin is down slightly to 803.20 feet, still above flood level. The level of Lake Winnipegosis has been oscillating with the wind and is up this week to 834.28 feet. Flow on the Whitemud River has almost stopped now down to just 64 cfs. Flow on the Assiniboine fell further to 1042 cfs at Headingly. The gauge at Holland is currently offline.

River update
Time: 5:30 PM July 30, 2017
Portage Diversion: closed
Assiniboine at Holland: gauge offline
Assiniboine at Headingly: 1,042 cfs
Waterhen: 10,595 cfs
Whitemud: 64 cfs
Fairford: 12,113 cfs
 
Lake update
Time: 5:30 PM July 30, 2017
Steep Rock: 813.30 ft
Westbourne: 813.22 ft
Mean level Lake Manitoba: 813.26 ft
Lake Manitoba desired operating range: 810.5 to 812.5 ft
Lake St. Martin: 803.20 ft
Lake St. Martin desired operating range: 797.0 to 800.0 ft
Lake Winnipegosis: 834.28 ft
Shellmouth Reservoir: 1403.10 ft

Lake Manitoba update: July 23, 2017

For the first time this summer, there is a noticeable drop in the level of Lake Manitoba. The current level of the Lake is 813.25 feet, down 0.15 feet from last week. A small portion of the drop is attributable to outflow on the Fairford River (currently 12,184 cfs) exceeding inflow from the Waterhen River (10,877 cfs), but most of the drop is due to evaporation. Lake St. Martin is higher on the week, back up to 803.31 feet. It remains above flood level.

The level of Lake Winnipegosis has been oscillating with the wind and is up this week to 834.25 feet This caused the flow on the Waterhen River to rise from last week. Lake Winnipegosis remains more than 3 feet above its average level for this time of year, but that is not new. It has been above its average level, often well above, for more than a decade. It is currently just (4″) below the maximum level ever observed for this time of year.

Flow on the Whitemud River has almost ceased, registering just 85 cfs. Flow on the Assiniboine continues to fall, now just 1,141 cfs at Holland and 1,201 cfs at Headingly.

River update
Time: 7:00 AM July 23, 2017
Portage Diversion: closed
Assiniboine at Holland: 1,141 cfs
Assiniboine at Headingly: 1,201 cfs
Waterhen: 10,877 cfs
Whitemud: 85 cfs
Fairford: 12,184 cfs
 
Lake update
Time: 7:00 AM July 23, 2017
Steep Rock: 813.34 ft
Westbourne: 813.16 ft
Mean level Lake Manitoba: 813.25 ft
Lake Manitoba desired operating range: 810.5 to 812.5 ft
Lake St. Martin: 803.31 ft
Lake St. Martin desired operating range: 797.0 to 800.0 ft
Lake Winnipegosis: 834.25 ft
Shellmouth Reservoir: 1403.12 ft

Lake Manitoba update: July 16, 2017

The gauge at Westbourne has been offline since late Thursday therefore I am using the readings for both Steep Rock and Westbourne from midnight Thursday for this week’s estimate of the lake level. It appears that Lake Manitoba has fallen in the hot weather to 813.40 feet, down 0.07 feet from last week. Lake St. Martin has also fallen to 803.08 feet today: this level is still above flood level. Flow on the Fairford River remains high at 12,713 cfs. The level of Lake Winnipegosis fell this week to 833.66 feet, and flow on the Waterhen River has fallen as a consequence to 9,888 cfs. Flow on the Whitemud River fell further to a trickle of just 122 cfs. Flow on the Assiniboine fell to 1,218 cfs at Holland and 1,589 cfs at Headingly. The level of the Shellmouth Reservoir fell slightly to 1402.76 feet this week.

River update
Time: 6:00 PM July 16, 2017
Portage Diversion: closed
Assiniboine at Holland: 1,218 cfs
Assiniboine at Headingly: 1,589 cfs
Waterhen: 9,888 cfs
Whitemud: 122 cfs
Fairford: 12,713 cfs
 
Lake update
Time: 6:00 PM July 16, 2017
Steep Rock: 813.55 ft (reading from Thursday midnight)
Westbourne: 813.25 ft (reading from Thursday midnight)
Mean level Lake Manitoba: 813.40 ft
Lake Manitoba desired operating range: 810.5 to 812.5 ft
Lake St. Martin: 803.08 ft
Lake St. Martin desired operating range: 797.0 to 800.0 ft
Lake Winnipegosis: 833.66 ft
Shellmouth Reservoir: 1402.76 ft

Lake Manitoba update: July 9, 2017

This has been an uneventful week. The level of Lake Manitoba is fell slightly from last week to 813.47 feet, down 0.03 feet on the week. Lake St. Martin also fell slightly to 803.25 feet, remaining above flood level. Flow on the Fairford River remains high at 12,148 cfs. Lake Winnipegosis fell to 834.25 feet which resulted in lower Waterhen River flows (10,948 cfs). Flow on the Whitemud River is now just a trickle at 184 cfs. Flow on the Assiniboine fell to 1,819 cfs at Holland and 1,995 cfs at Headingly. The level of the Shellmouth Reservoir fell slightly to 1402.97 feet this week.

River update
Time: 9:00 AM July 9, 2017
Portage Diversion: closed
Assiniboine at Holland: 1,819 cfs
Assiniboine at Headingly: 1,995 cfs
Waterhen: 10,948 cfs
Whitemud: 184 cfs
Fairford: 12,148 cfs
 
Lake update
Time: 9:00 AM July 9, 2017
Steep Rock: 813.35 ft
Westbourne: 813.58 ft
Mean level Lake Manitoba: 813.47 ft
Lake Manitoba desired operating range: 810.5 to 812.5 ft
Lake St. Martin: 803.25 ft
Lake St. Martin desired operating range: 797.0 to 800.0 ft
Lake Winnipegosis: 834.25 ft
Shellmouth Reservoir: 1402.97 ft

Lake Manitoba update: July 2, 2017

This has been a week of little change. The current level is of Lake Manitoba is roughly the same as last week, currently sitting at 813.50 feet. Lake St. Martin remains at flood level at 803.29 feet. Flow on the Fairford River remains high (11,831 feet), as does flow on the Waterhen River (11,619 cfs). Lake Winnipegosis remains high (keeping Waterhen flows high) this week at 834.55 feet. Flow on the Whitemud River fell further to just 244 cfs. Flow on the Assiniboine remains low, being 2137 cfs at Holland and 2,137 cfs at Headingly. It appears that the gauge anomaly reported last week has been fixed. The level of the Shellmouth Reservoir has now begun to decline, falling to 1402.99 ft this week.

River update
Time: 7:30 AM July 2, 2017
Portage Diversion: closed
Assiniboine at Holland: 2,137 cfs
Assiniboine at Headingly: 2,437 cfs
Waterhen: 11,619 cfs
Whitemud: 244 cfs
Fairford: 11,831 cfs
 
Lake update
Time: 7:30 AM July 2, 2017
Steep Rock: 813.29 ft
Westbourne: 813.71 ft
Mean level Lake Manitoba: 813.50 ft
Lake Manitoba desired operating range: 810.5 to 812.5 ft
Lake St. Martin: 803.29 ft
Lake St. Martin desired operating range: 797.0 to 800.0 ft
Lake Winnipegosis: 834.55 ft
Shellmouth Reservoir: 1402.99 ft