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Summer arrives on Tuesday, with the season starting hot and humid in Ontario. The week began with extreme heat and unpleasant humidity for some, which became widespread on Tuesday. Long-range temperatures are expected in the low and mid 30s, with humidity values entering the 40s for some areas, approaching or exceeding record levels. Tuesday night will not provide any relief from the heat, so it can be an uncomfortable sleep for many, even with proper cooling equipment. More on how hot things will get and where the warmest temperatures will be, below.
THIS WEEK: ONE OF THE WARMEST WEATHER OF THE YEAR ARRIVES WITH THE OFFICIAL START OF SUMMER
Heat warnings are in effect in southern Ontario, and the multi-day event is expected to last at least until Wednesday.
An unusually strong, scattered high-pressure ridge south of the border will be responsible for capturing some of the hottest temperatures and humidity values so far this year, and a record for some.
“Check out older family, friends and neighbors. Make sure they are cool and drinking water, “said the warning from Environment and Climate Change Canada. “Reduce the risk of heat. Plan outdoor activities during the coolest parts of the day.”
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The warm front will move slowly east to northeastern Ontario and southern Quebec on Tuesday, providing a chance for several thunderstorms, possibly severe in some areas. They could bring heavy hail, heavy rain and strong gusts of wind. Meanwhile, a minor threat extends to eastern Ontario and southern Quebec.
The biggest concern will be the degree of heat, which will be widespread throughout the province for much of this week.
By Tuesday, humidity values will be above 30 and low 40. Even Timmins, Ont., Will feel like 41 on Tuesday – close to leveling its all-time record of 44, which was set on July 1, 1963. The city of Windsor is forecast to reach 37 ° C, with humidity values to the low 40s, making it one of the hottest temperatures for 2022 so far. If Windsor reaches 37 ° C, it will be the fourth warmest June day in history and the warmest day of the month since June 25, 1988 (40.2 ° C). This day turns out to be the warmest day in the history of the city.
Tuesday night will not provide any relief from the heat, so it can be an uncomfortable sleep for many, even with proper cooling equipment.
SEE ALSO: Heat is on the horizon. Here are 6 things you need to keep your cool
It will be close to Toronto with a 34 ° C forecast at Toronto Pearson Airport. Temperatures must exceed 33.3 ° C to become the warmest of the year so far.
“What makes this heat even worse is the fact that Tuesday night to Wednesday temperatures won’t offer much relief,” said Matt Grinter, a meteorologist with The Weather Network. “Even night temperatures are forecast to remain at 25 ° C in Windsor and around 20 ° C in the rest of southern Ontario, which is not a relief, especially for those without air conditioning.
For areas near the Great Lakes, the direction of the wind will determine how hot it gets.
Although Sault Ste. Marie is usually sheltered from the extreme heat of the Three Great Lakes, and the city will experience an ideal wind direction from upper Michigan on Tuesday, sending humidity up to 38 before falling to 19 on Wednesday.
Hot and very humid again on Wednesday, with the possibility of scattered thunderstorms such as a cold front will continue throughout the region. The storms will be mostly widespread in eastern Ontario. Much lower humidity behind the front with almost seasonal temperatures that return for Thursday, but then the heat returns to the weekend.
Then on Sunday in the region will continue a stronger cold front with rain and thunderstorms, followed by cooler weather early next week. Temperatures are expected to be close to seasonal, probably even a few degrees lower than seasonal for several days, in the last few days of June and during the long weekend of Canada Day.
WATCH: HOW TO BEAT THE HEAT; TRICKS TO KEEP YOU COOL
Miniature courtesy of Michelle Valancius.
Stay tuned to The Weather Network for the latest Ontario forecast updates.
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