F-1 Tornado in Quebec

"It was a wild weather day yesterday. I have had over 300 hits this weekend alone on my blog. Thank you so much for coming here for your weather information. It means so much to me" ...SB

Environment Canada has confirmed that the damage caused in Boisbriand and St-Eustache last night was from an F-1 Tornado on the Fujita Scale. Kudos to Environment Canada for handling the warnings last night, and for getting a team on the ground today. Tonight more thunderstorms are developing in Eastern Ontario and moving east. They are very weak and will only produce rain and some lightning. They should affect Montreal after 9pm.

Here is the official statement from Environment Canada:

AWCN40 CWUL 121734 Summary of significant weather events for the province of Québec issued by Environment Canada Montréal, Sunday, 12 July 2009....

Confirmed tornado... Severe thunderstorms moved across the Upper Laurentians between 07:00 PM and 08:00 PM Saturday evening July 11 2009. According to reports from voluntary observers and the Mirabel airport, a funnel cloud touching the ground was seen under the base of the clouds and several damages have been reported in St-Eustache and Boisbriand. An expert from Environment Canada was sent on site this morning, Sunday. He noticed many uprooted trees along a well defined corridor. Some of them had fallen over houses, causing indirect damages. Minor damages on some roofs have also been reported. According to the witnesses and the position of the debris, the expert determined that the tornado was a weak F1 category, with winds of about 120 km/h. Please note that this summary contains the observations available at broadcast time but does not constitute an official and final report of the weather events.