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Cool and comfortable in southern Ontario


Humidity has been wiped out, and cooler, fresher air has taken over
Humidity has been wiped out, and cooler, fresher air has taken over

Jill Colton, staff writer

August 6, 2010 — Southern Ontario has waved goodbye to the heat and humidity and made way for some fresher air and cooler temperatures.

Wind gusts pull down traffic lights in Toronto on Thursday
Wind gusts pull down traffic lights in Toronto on Thursday

Many residents across southern Ontario are breathing a sigh of relief and taking in a big gulp of fresh air.

It's a nice change from the sweltering conditions earlier this week. Wednesday saw humidity levels peak in the low 40's and on Thursday, they dropped slightly, but it still felt closer to the high 30's. The blazing heat was enough for a humidex advisory to be issued for the Windsor and Greater Toronto areas.

Thursday also saw a cold front push through, which triggered thunderstorms for parts of the region and stirred up some damage along the way. Trees in Toronto were toppled by 60 km/h winds and power lines and light standards were also downed by the powerful gusts. Meanwhile, eastern parts of the province were drenched with rain. Ottawa and Kingston both saw heavy downpours as did areas in southern Quebec. Thunderstorm watches and warnings were in place there, and about 20 mm was recorded in the western part of the province.

Cooler temperatures remain for Saturday
Cooler temperatures remain for Saturday

It was the same story on Wednesday when severe weather poured down on Ottawa. There were reports of storm damage and flooding after 38 mm hammered the city. The damaging winds also cut power to over 8,000 customers for a brief time. Quebec City residents were also running for cover when nearly 30 mm drenched the area, and lightning strikes lit up the sky.

The good news is that with the push of colder air, humidity levels have completely dropped across southern Ontario. “We saw the cold front last night, and now we're under a trough. The cooler air has moved in and we've been flushed out of the humidity,” explains Rob Davis, a meteorologist with The Weather Network. Additionally, the northwesterly winds have helped to dip temperatures below seasonal, so the daytime high is likely to reach the low twenties.

The fresher air is expected to remain in place for Saturday, but on Sunday the humidity will return.

For more details on what you can expect in southern Ontario this week, click on our Cities Index. You can also tune into The Weather Network on TV, where your local forecast comes up every ten minutes on the tens.

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