Record-setting deluge brings more rain to Winnipeg on single day than in all of July
CBC News | Posted: August 21, 2021 3:00 PM | Last Updated: August 21, 2021
Rainfall warnings now lifted for most of province
After seeing the driest July on record, Winnipeg got a record-setting rainfall Friday, as heavy precipitation deluged southern Manitoba.
Environment Canada says some parts of the province got 70 to 110 millimetres of rain over the last day, while others had between 40 to 60.
As of 10 a.m. Saturday, Winnipeg's airport received 70.3 millimetres of rain, while The Forks saw 43.5, according to Environment Canada meteorologist Justin Shelley.
Gauges across Winnipeg showed a wide range of accumulations, he said, recording anywhere from 40 to 80 millimetres over the past day.
That alone would bring Winnipeg past the average 77 millimetres of rain for the entire month of August, he said.
Winnipeg got just 8.5 millimetres of rain in all of July.
The rainfall in Winnipeg set a new daily record, according to the weather data website Rob's Obs. The previous record for Aug. 20 was 47.2 millimetres in 1983.
The all-time monthly record for August rainfall in Winnipeg was 218 millimetres in 1985, Shelley said.
Even with Friday's rain, the city is still well shy of that mark — but could surpass the 99.8 millimetres that fell in August 2015, he said.
"There was 92.7 millimetres [so far this month] as of midnight, and there's about five to 10 more that will come in from this morning."
Other areas in Manitoba received more than 100 millimetres of rain in the past day. A gauge near Melita recorded 109.5 millimetres, while Deloraine received 104.6 millimetres, said Shelley.
More rain is on the way over the next week, too.
"Winnipeg looks like it's going to be on the lower end of that spectrum, perhaps 10 to 20 millimetres at this time," said Shelley.
"But the highest amounts are farther north, through Dauphin and Berens River. They could get another 50 millimetres of rain by the middle of next week."
Rainfall warnings were still in effect for much of southwestern Manitoba earlier Saturday morning, but by shortly after noon, all had been lifted.