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Summer's 'curtain call' gives parts of Canada a perfect ending

Tuesday, September 17th 2019, 9:15 am - Summer 2.0 now loading for the eastern half of Canada.

Autumn is right on our doorstep, but we can't count summer out just yet.

Visit our Complete Guide to Fall 2019 for an in depth look at the Fall Forecast, tips to plan for it and a sneak peek at the winter ahead

A ridge of high pressure building across the southern United States will be one of the major drivers for Canadian weather in the week ahead, and that means surging temperatures -- and the humidity that goes with them -- are about to make a play north of the border.

WATCH BELOW: TRACKING THE SUMMER SURGE

With the peak of the ridge planted over the eastern Prairies to start the work-week, temperatures across southern Manitoba will make some major strides for the early part of the week. Highs edging into the low 30s for Winnipeg will be a nearly 20-degree jump from the middle of last week when afternoon temperatures only barely crept into the double digits.

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Midweek will see the ridge edge over the Great Lakes, giving temperatures across northern Ontario a boost -- a big one. Temperatures stand to threaten some records for the day across parts of northeastern Ontario on Wednesday. The average high in Moosonee, for example, is around 16ºC, and the record for September 18 -- set in 2003 -- is 28.5ºC.

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For the latter half of the week, a low pressure system crossing the Prairies and moving into northern Ontario may put a brief damper on the ridge's progress, but it's hard to keep a good southern ridge down at this time of the year, when the Gulf of Mexico is at its warmest and provides ample fuel for these surges of heat.

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Heading into the end of the week and the weekend, it's likely we'll see the warmth (and humidity) rebound over southern Ontario and Quebec. And by the time we reach the last weekend of summer, it should be the Maritimes turn for some above-average highs.

"It's summer's curtain call this weekend and the very warm weather will shift east late week and weekend with an extended period of sunshine and a warming trend for Ontario and Quebec," says Weather Network meteorologist Dr. Doug Gillham, adding that the warmer weather will reach the Maritimes for the weekend and into early next week.

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