Prepare for summer to linger as fall finally arrives in Canada
The first week of fall will feel like extended summer for parts of the country
Get ready for the beginning of astronomical autumn to feel more like summer across parts of the country as a split pattern develops over Canada.
Some areas will endure several days of unseasonable warmth to ring in the new season. Meanwhile, many communities will enjoy drier and cooler conditions worthy of the full fall treatment.
CANADA’S FALL OUTLOOK: Winter can wait: Exceptional El Niño favours an extended fall
Fall arrives on Tuesday night
Autumn finally arrives in the northern hemisphere at 8:04 p.m. EDT on Tuesday as the Sun’s direct rays slip south of the equator for the next six months.
Conditions certainly won’t feel like fall throughout Western Canada and the territories up north as a large upper-level ridge builds over the region.
We’ll see several days of unseasonably warm conditions build beneath this ridge, with daytime highs climbing 5-10+ degrees above seasonal from southern B.C. to Nunavut.
Churchill, Manitoba, may see a high of 22°C on Tuesday, which is 13 degrees above normal for this time of year in the community near Hudson Bay.
Meanwhile, folks throughout Ontario, Quebec, and the Atlantic provinces will experience cool northerly winds through the middle of the week.
This northerly flow will combine with a strong centre of high pressure to support below-seasonal temperatures. Tuesday’s daytime highs in the middle to upper teens will come in as much as 3-5°C below normal from Toronto to Montreal to Charlottetown.
Many areas in Ontario and Quebec are also on the lookout for their longest dry stretch of the year heading into this week. We’ll easily surpass Toronto’s current stretch of 7 consecutive dry days at the end of May and beginning of June.
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