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Heat finally breaks across Ontario, but at the cost of some damaging storms

Monday, August 30th 2021, 9:00 am - Severe thunderstorms sweep through southern Ontario, bringing heavy rain, winds and frequent lightning to end the weekend.

The extreme heat and humidity that marked much of the weekend across southern Ontario helped to fuel the storm threat on both Saturday and Sunday.

Widespread severe thunderstorms swept across portions of the region, resulting in reports of wind damage, large hail, frequent lightning and localized flooding for some areas. Tornado warnings were in effect Sunday evening for some areas north of Lake Huron.

The storms knocked out power for tens of thousands of customers throughout Ontario on Sunday, with over 30,000 left in the dark at the height of it all, according to Hydro One.

RELATED: Man dies at Erin, Ont., golf course following violent storm

The good news is that a cold front sweeping across the Great Lakes will allow drier air to filter over much of Ontario to start this new week. While temperatures will still remain warm on Monday, the humidity will decrease throughout the day with all heat warnings now dropped for the province.


The cooler, near seasonal temperatures will continue to dominate throughout the week as opposed to the hot and soupy airmass that brought the unbearable humidex into the 40s last week. Most of the week should also remain dry, with no large-scale storm systems moving across the region and the remnants of Tropical Storm Ida remaining stateside.

Here's a closer look at the damaging weekend storms that swept through the province:

Thumbnail image courtesy: Corné Van Hoepen

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