Assiniboine River floodwater covers farmland bordering Grand Valley Road during the July flood. The Assiniboine and Souris rivers are once again at risk of flooding due to recent high amounts of rainfall and more rain in the forecast.
Just when you thought it was over, a new flood watch was issued for portions of Westman.
The province’s Hydrologic Forecast and Water Management Centre says that water levels on the Assiniboine and Souris rivers in southwestern Manitoba are rising due to heavy rainfall.
Parts of the Assiniboine River and Souris River watershed have received up to 120 millimetres of rain since mid-August — that’s 280 to 300 per cent above normal — and that means water has been rising on the Assiniboine River.
More rain was forecast for southern Manitoba last night and today, with up to 50 mm expected in some areas.
Environment Canada says that a low pressure system was moving into Westman late yesterday from Saskatchewan. It was picking up very moist air from the Dakotas and dropping rain throughout the region last night and much of today. The heaviest rainfall was coming from thunderstorms, but the entire region was expected to get 20 to 40 millimetres.
The province says it expects the storms and rising rivers to bring some overland flooding, especially downstream of the Portage diversion. It is trying to avoid using the diversion, since it needs to be as dry as possible for repairs and maintenance.
Water levels of the Assiniboine River near Brandon are up slightly in the past few days, but are still much lower now than they were even a couple of weeks ago.
On the Souris River, the water level has risen by 10 inches in the past 10 days, but it is still more than 18 inches lower than it was at the start of August.
» Brandon Sun
Republished from the Brandon Sun print edition September 4, 2014