WATCH: Winnipeg was pounded with a late summer storm yesterday. As Global’s Megan Bachelor tells us, the water receded as quickly as it came
WINNIPEG – A month’s worth of rain in one hour; that’s what parts of Winnipeg got Thursday evening. It also looks like a second system, expected to hit Saturday evening and last throughout the day Sunday, could bring similar rainfall amounts.
Thursday’s storm was triggered by a slow moving cold front, which essentially parked itself over the city. Combine that with a humid air mass and all that moisture quickly drenched the city with more than 100 mm falling in roughly ninety minutes. In a typical August month, Winnipeg will receive approximately 77 mm.
WATCH: Some people get caught in the flash flooding and have to abandon their car
But exactly how much water accumulated from the rain varied greatly depending what area of the city you were in; ranging from 0 to more than 100 mm. These numbers were collected by Environment Canada through its sites and by volunteers.
Totals (in millimeters)
Whyte Ridge 102
Whyte Ridge School 81
University of Winnipeg 76.5
Linden Woods 73
Bridgewater Forest 70
The Forks (EC) 53
Richardson Airport 20
East Perimeter 0-5
There were also two reports of funnel clouds. One near Fisher Branch/Arborg and the other near La Salle.
This will not be the end of the heavy rain in southern Manitoba. Another system is working its way north.
This one has similar characteristics to a Colorado Low and will impact areas from southeastern Saskatchewan all the way into northwestern Ontario. You might be familiar with Colorado Lows from the winter time. While uncommon, the typical characteristics of the summer version is heavy widespread rainfall with non-severe thunderstorms.
Environment Canada will likely issue a special weather statement late Friday night or Saturday morning with the action expected later that evening. Models are still in disagreement on what areas will be most impacted but expectations are 50 mm of rain is possible, even 100 mm is not out of the question. While rain amounts could be similar to Thursday evening’s storm, the weekend rain will be spread out over a much longer period of time. Closer to a day or a day and a half.