SEVERE THUNDERSTORM ALERT for Cornwall Ontario Region JUNE 18, 2017

Cornwall Ontario – It’s 33c at CFN central in downtown Cornwall as of 4:55PM.  Environment Canada has issued a Thunderstorm alert from Morrisburg to the Quebec border and as far north as Maxville and Alexandria.

A CFN viewer sent in the following from the Alexandria area :

Jamie: a friend called me on her cell phone..she lives on the outskirts of Alexandria. She said they had some kind of  tornado…she has a big tree branch hanging on her wires and branches all over. She couldn’t get any of her friends on the phone in the town or on her cell either. Hydro is supposed to come to get the tree branch off the wires.

Up to 25mm of rain is expected before Monday morning.   Most of it falling in a short period of time tonight.

Please be careful.


10:35 AM EDT Sunday 18 June 2017
Severe thunderstorm watch in effect for:

  • Cornwall – Lancaster
  • Maxville – Alexandria
  • Morrisburg – Long Sault
  • Winchester – Newington

Numerous thunderstorms are expected to affect much of southern Ontario this afternoon and early evening. Damaging wind gusts and torrential downpours giving rainfall amounts in excess of 50 mm are the main threats.

Large hail can damage property and cause injury. Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Heavy downpours can cause flash floods and water pooling on roads. Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors!

Severe thunderstorm watches are issued when atmospheric conditions are favourable for the development of thunderstorms that could produce one or more of the following: large hail, damaging winds, torrential rainfall.

The Office of the Fire Marshal and Emergency Management recommends that you take cover immediately if threatening weather approaches.

Leave a Reply