Brett Anderson

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Update on Friday Severe Thunderstorm Threat

July 18, 2013; 3:47 PM ET

No significant changes to our thinking in regards to the elevated severe thunderstorm threat for eastern Canada on Friday.

Based on our latest thinking, here is my best estimate for the time window of severe thunderstorms in selected cities for Friday. Keep in mind, there could be spotty storms before and after these times. This is an estimate for most likely period for the strongest storms.

Ottawa, Ontario..... 2-6 p.m. Friday

Toronto, Ontario.... 4-7 p.m. Friday

Windsor, Ontario..... 3-6 p.m. Friday

London, Ontario.... 4-7 p.m. Friday

Barrie, Ontario..... 3-5 p.m. Friday

Hamilton, Ontario.... 5-8 p.m. Friday

Peterborough, Ontario... 4-7 p.m. Friday

Kingston, Ontario.... 6-8 p.m. Friday

Montreal, Quebec.... 5-8 p.m. Friday

Quebec City, Quebec... 4-7 p.m. Friday

northwest New Brunswick... 6-8 p.m. Friday

The front does slow its forward speed a little more than what we thought for Saturday, which is not surprising since it is July and the strength of the high pressure ridge to the south. With that in mind, we may see some thunderstorms early Saturday across extreme southern Ontario as the cold front approaches then pushes south later in the afternoon, though the main threat for severe weather will be across the Northeast U.S.

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I will post the weekly long-range stuff later this evening.

The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com

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About This Blog

Brett Anderson
Brett Anderson covers both short-term and long-term weather and storm forecasts for Canada in this blog for AccuWeather.com.