Temperatures in some regions could reach 40 C amid heat warnings from Ontario and Quebec

Heat advisories remain in effect for many parts of Ontario and Quebec on Wednesday as temperatures could reach 30 degrees, and potentially 40 degrees, with humidity.

The Greater Sudbury and North Bay, Ontario, areas of northern Ontario currently have heat warnings instead, along with nearly all of southern Ontario and parts of southern Quebec.

Areas in Quebec could see humidex values ​​reach around 40 or higher.

Environment Canada reports that overnight temperatures could drop into the 20s but “will provide little relief from the heat.”

Although Environment Canada expects “slightly cooler temperatures” Thursday in Ontario, certain areas of the south could still see warmer weather through Sunday.

“Summers are hot and winters are cold. This is nothing terribly unusual for the time it’s happening,” Environment Canada Senior Climatologist Dave Phillips told CTV’s Your Morning on Wednesday.

He said eastern Canada appears to be in the “heatwave of summer,” which usually occurs a month after the longest day of the yearalso known as the summer solstice.


The Old Farmer’s Almanac describes the “dog days of summer” as the traditional period in July and August when the weather turns particularly hot and humid in the Northern Hemisphere.

The term comes from ancient Greece and Rome, who believed that extreme heat drove both people and dogs insane.

“This is the time when you would expect those scorching, scorching temperatures in the 30s, and nights stay above 20 (C),” Phillips said.

Wednesday’s advisories come a day after Environment Canada issued heat advisories for four provinces, including Ontario, Manitoba, Saskatchewan and Quebec.

On the same day, temperatures in the UK exceeded 40°C for the first time in the country’s recorded history.

As of Wednesday morning, Environment Canada also had special weather declarations in effect for parts of southern Ontario, with thunderstorms expected to develop in eastern Michigan and Lake Huron this afternoon before moving east by the night.

Strong gusts of wind, hail and tornadoes are possible in affected areas, Environment Canada says, and Phillips said storms typically follow once the heat and humidity have worn off.

Looking ahead, he said models predict the second half of the summer to be warmer than the first.

Phillips told CTV News Channel on Monday that “the hottest part of summer is yet to come,” with July and August warmer than normal.

“We’re going to see more of those above 30 (C) days and I’m sure we’ll be complaining about the heat and humidity in the future. We always do, that’s the Canadian way,” he told CTV’s Your Morning on Wednesday. .

“We want it to come and then when it comes we complain.”


See the full interview with Dave Phillips at the top of the article.


With archives from CTV News and The Associated Press

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