After 5 days of heat and humidity, Mother Nature unloaded over Winnipeg early this morning with a torrential thunderstorm that swamped the city with heavy rainfall. The storm moved in over the southwest part of the city by 5:40 am, and within 30 minutes had dropped about 40 mm of rain over much of the city. The heavy rainfall caused numerous problems in the city with traffic light outages, flooded underpasses and manhole covers being blown off by the tremendous rainfall rates.
The photo here (from Mike O'Flaherty to CJOB) shows the storm approaching the city from the west before 6 am. At my weather station in Charleswood, I recorded 33 mm of rain between 5:40 and 6 am, with a total of 41 mm by 6:40 am. Winnipeg airport recorded 43 mm of rain while the Forks had 40 mm downtown. The University of Winnipeg weather station recorded 57 mm between 5:50 and 6:50 am. Lesser amounts of 20-30 mm were recorded over the southern parts of the city. (click here for city of Winnipeg rainfall map) The thunderstorms signaled an upcoming change in the weather pattern, with cooler weather moving in for the weekend into next week.
Radar image from 6 am showing
intense cell over Winnipeg.