Heat warning extended for large parts of eastern and western Canada

It continued to heat in unusually warm conditions in five provinces in central and eastern Canada on Sunday, Environment Canada said as it extended a widespread heat warning to a second day.

The National Weather Agency’s warning covered wide areas of southern Ontario, southern Quebec, New Brunswick, Nova Scotia and Prince Edward Island.

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Monica Vaswani, a meteorologist with Environment Canada, says the magnitude of the heat wave, while remarkable, is not unprecedented.


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Heat wave next week: August 5 Saskatchewan weather forecast


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“If we get heat, it’s basically due to advections of warm air, or essentially an area of ​​warm or hot air going from the south to the northern parts — the Canadian provinces,” she said in a telephone interview. “It’s not uncommon to see large areas of that hot, humid air mass.”

Environment Canada says maximum temperatures are expected to reach or exceed 30°C and reach the low forties combined with humidity.

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Humid conditions are expected to become even more common in the Atlantic provinces, Vaswani said.

“It would definitely be more humid in the maritime provinces because of the extra moisture provided by the ocean,” she said.

Environment Canada’s Sunday forecast called for nighttime temperatures in the low to mid-20s, which offered little relief from the daytime heat.


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Cooler temperatures are forecast for Monday, although parts of Nova Scotia may continue to feel the overwhelming heat well into the day.

On the other side of the country, part of the interior of British Columbia is also in the middle of a hot stretch that is expected to last until Tuesday.

And this probably won’t be the last of the heat events, at least not for Ontario, Vaswani noted.

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“Some indications suggest that temperatures may be slightly above normal for the rest of August other than the week ahead, so that could indicate further heat events may occur before the summer is over,” he said. they.

During these extremely hot and humid periods, residents are advised to watch for signs of heat illness such as swelling, cramps and fainting, drink plenty of water, stay in a cool place and check on elderly family, friends and neighbors.

Summer-like conditions are likely to linger into the fall season, Vaswani said.

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“Given the trend we’ve seen in recent years, it seems that our summers generally start a bit later and last at least until September, even mid-to-late September, so I wouldn’t be surprised if we see something similar this year,” she said.

© 2022 The Canadian Press

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