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Flooding Update - Lake levels continue to drop

July 8, 2014 - All lakes in the Qu’Appelle system have seen peak levels move through and are starting to decline except for Last Mountain Lake. It is important to note that the structure at Craven has been open since March of 2013 and is not holding back any water in the lake. WSA is constantly the debris at the structure.

Crooked and Round Lake has peaked and is declining. We expect Crooked and Round Lakes to decline by roughly one metre over the next two weeks. These lakes are expected to be above normal for much of the summer.

With a warm dry forecast for the next week across the province the only risk to the flooded areas will be localized storm systems. 

Quill Lakes
Big Quill Lake is at 520.20 m and Little Quill Lake is at 520.26 m.  The major flows from this rainfall event came into Little Quill and inflows are continuing, though declining.  Water is flowing from Little Quill into Big Quill.  The lakes are expected to equalize at 520.25 m. The previous historical extreme was in 2013 at 519.74 m. The concern in this area is the impact of high water on roads, especially Grid 640 running north from Wynyard.  Wind and wave action can escalate this impact.

Qu’Appelle River near the Village of Tantallon
Things are progressing as the event moves through the system and the and at the dykes at the village is holding. The village has equipment on standby to react as necessary. WSA has staff on site to provide assistance.

Assiniboine Watershed
Flows in the  Assiniboine watershed and  Whitesand Rivers are declining. At Kamsack the Assiniboine River peaked yesterday and is now at 382 m3/s and in recession.  

The rate of rise of Fishing Lake is now slowing. The peak level is expected this week and should not exceed 530.65 m. The current elevation is 530.6 m.

Good Spirit Lake is currently at 485.55 m and continues to creep up, but is not expected to exceed 485.6 m. The record level for Good Spirit Lake is 485.67 m in 2010.  

 

 

 

 

 

Historic References 

 

2014 Peak

Current (as of 9 amJuly 8, 2014) 

Desirable Summer Level

Projected Recession 

Spring 2014 

2013 Peak 

2011 Peak 

Historic Peak 

Year 

Buffalo Pound Lake 

509.98
(Observed Peak)

509.96

509.4

0.5 m in 3 weeks

510.2

510.25

511.16

511.5

1974

Last Mountain Lake

491.6
(Forecasted Peak)

491.51

490.2

0.5 m in 7 weeks

491.00

490.70

492.00

492.1

1955

Echo / Pasqua Lake

479.7
(Peaking)

479.74

479.1

0.5 m in 5 weeks

479.58

479.89

480.97

481.0

2011

Katepwa / Mission Lake

479.1
(Observed Peak)

478.86

478.3

0.25 m in 2 weeks

478.75

478.67

479.59

479.6

2011

Crooked Lake

454.4
(Observed Peak)

453.91

415.7

1 m in 2 weeks

452.6

453.14

454.03

454.4

1955

Round Lake

445.73
(Observed Peak)

445.49

442.4

1 m in 2 weeks

443.33

443.88

445.11

445.3

1955