Threat for severe storms continues Friday evening in Ontario
Multiple rounds of thunderstorms will threaten southern Ontario to start off the holiday long weekend.
A vigorous round of thunderstorms moving through portions of southern Ontario isn't done just yet. Multiple watches and warnings continue into the evening hours, with more thunderstorms likely on Saturday.
A new round of storms is possible across Ontario and Quebec on Saturday, potentially interfering with any Canada Day plans across the region.
Pay close attention to watches and warnings through Saturday, and have a plan in place to act quickly if severe weather threatens your location.
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Friday
Areas: Ontario
Timing: Afternoon and evening hours
Weather: We’ll see a general risk for thunderstorms cover much of Ontario during the day Friday, but dynamics are favourable over the southern and northeastern portions of the province to support severe thunderstorms later in the day.
Daytime temperatures in the high 20s with a touch of mugginess in the air will give storms the ‘kick’ they need to develop and possibly surpass severe limits.
Areas around Lake Huron and Georgian Bay are at the highest risk of severe storms with the potential for strong winds, heavy rainfall and hail as large as a toonie.
As the day goes on, there is some confidence that areas south and southeast of Georgian Bay could see a setup that is favourable for the potential of supercells to develop, which increases the risk of tornadoes.
Those in these regions should be mindful and prepared as the weather conditions could change quickly.
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Not everyone will see the rain and storms, though, with mostly sunny skies blanketing the region for the most part. Warm temperatures and a chance for storms will stick around into our Canada Day on Saturday.
Saturday
Areas: Ontario and Quebec
Timing: Afternoon and evening
Weather: Thunderstorms will continue on Saturday, with the risk of severe storms shifting towards parts of eastern Ontario and southern Quebec.
Storms will be more widespread compared to Friday but will see the same threats of strong wind gusts, large hail and heavy rain throughout the region.
Some storms around the Ontario-Quebec border as well as those around the border between Quebec and the U.S., could potentially become rotating storms. However, confidence is low at this point.
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Check back frequently for the latest on your forecast across Ontario.