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Belleville, Mallorytown storm damage was from downbursts: Researchers

Monday, June 20th 2022, 4:17 pm - Winds there and in Shannonville peaked around 115 km/h.


A team of researchers confirms some of last week's storm damage in eastern Ontario was from violent vertical blasts of wind known as downbursts.

Western University's Northern Tornadoes Project said in a blog post Monday that winds peaked around 115 km/h Thursday afternoon in Belleville, Ont., Front of Yonge Township's Mallorytown and Tyendinaga Township's Shannonville.

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"Damage was thankfully limited — mostly tree damage was reported and perhaps some damage from the large hail that fell in a few locations," it wrote.

"[There were] no reports of injuries."

Belleville, Ont., storm damage/Jeanette Arsenault/Twitter via CBC Bellleville, Ont., resident Jeanette Arsenault took this picture on Front Street of a roof that blew off a building during Thursday's storm and onto the Freedom Peer Support Centre across the street. (Jeanette Arsenault/Twitter)

That storm came with local tornado watches and warnings. It was less than a month after a fatal derecho windstorm knocked out power to hundreds of thousands of people across parts of Ontario and Quebec May 21.

Strong winds then knocked out power again Saturday in some places.

Researchers say climate change is leading to more extreme winds.

Western's researchers didn't have an update on Carleton Place, Ont., which they said Friday may have had a tornado.

The story was originally published for CBC News.

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