
Extreme heat is hammering Ontario. Here's when it's expected to let up
CBC
Extreme heat continued to hammer the Greater Toronto Area and surrounding regions on Monday amid a heat warning from Environment Canada that's expected to last at least on more day for most areas.
Daytime highs were forecast to be between 33 and 36 C, with humidex values forecast to range between 42 and 46, according to the federal weather agency.
If temperatures reach 36 C, it would break the record for this time of year, said David Phillips, senior climatologist for Environment Canada.
"We haven't seen a temperature like that for 10 years," he said in an interview with CBC Radio's Metro Morning on Monday. "This is exceptional."
The mercury had reached 36 C by 4 p.m. in Toronto, feeling like 43 with the humidex.
Overnight lows are forecast to be between 22 and 25 C, which the weather agency said will provide "little relief from the heat."
The heat warning is in effect for the following areas: Toronto, Mississauga, Brampton, Richmond Hill, Vaughan, Markham, Newmarket, Georgina, northern York Region, Durham Region, Pickering, Oshawa, Uxbridge, Beaverton, Simcoe, Halton Hills, and Milton.
Phillips said the seasonal norm for this time of year is around 24 C.
While Barrie, Collingwood and Hillsdale are also under a heat warning Monday, Environment Canada says it appears conditions will fall below the heat warning criteria on Tuesday.
Daytime highs between 30 to 33 C are expected for these areas, as well as humidex values between 40 to 43, the weather agency said.
Toronto's mayor said Monday that the city is taking measures to ensure pools stay open, after some city pools that had set extended hours temporarily closed over the weekend due to high humidex levels.
Olivia Chow said the city will ensure pools stay open by deploying additional lifeguards, adding more shade and having medical professionals check in with people at pools or stationed at sites.
"Pools need to be open during a heat wave. That's obvious to us all," she said in a social media post.
"We're making sure we have the resources to keep them safe and healthy for City workers and the public alike."













