An overland flood watch has been issued for parts of southwestern Manitoba due to heavy rainfall expected to persist through Saturday. The province’s hydrologic forecast centre announced the watch on Friday, predicting rainfall totals of 20 to 40 millimetres across much of the region, with higher amounts likely towards the Dauphin area.
The most intense downpours are anticipated west of Brandon, specifically in Virden and Melita, where rainfall could reach 50 to 80 millimetres. In areas experiencing severe thunderstorms, rainfall amounts could exceed 120 millimetres, as highlighted in a Manitoba government news release.
The rapid accumulation of heavy rainfall may lead to overland flooding, particularly in the mentioned areas. Additionally, the forecast suggests that the heaviest rainfall may extend further west into the Saskatchewan region of the Souris River basin.
Environment and Climate Change Canada has issued special weather statements for various western Manitoba locations, with ongoing advisories for areas surrounding Dauphin and Riding Mountain National Park. The weather agency projects continued rain throughout the day, gradually diminishing by the evening.
In late June, a previous overland flood warning was issued for parts of western Manitoba. This latest flood watch comes as many communities in the region, including Dauphin, Minitonas, and Swan River, are still recovering from severe storms and flooding incidents earlier this year.
Numerous municipalities have declared local states of emergency in response to flooding and storm-related challenges. As rain persists, Environment Canada’s forecast for Winnipeg anticipates periods of rain starting Saturday midnight and lasting through the morning hours.