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  • Writer's pictureAdvance Weather

Severe Thunderstorm Warning Issued

Issued: 7:12 PM EDT Tuesday 07 September 2021

Environment Canada has issued a Severe Thunderstorm Warning for:

  • London - Parkhill - Eastern Middlesex County

  • Sarnia - Petrolia - Western Lambton County

  • Strathroy - Komoka - Western Middlesex County

  • Watford - Pinery Park - Eastern Lambton County


At 7:12 p.m. EDT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing strong wind gusts, up to nickel size hail and heavy rain. This cluster of severe thunderstorms is located from 11 kilometres east of Goderich to 15 kilometres northwest of Forest to Point Edward, moving east at 55 km/h. Hazard: 80 km/h wind gusts and nickel size hail. Locations impacted include: Sarnia, Forest, Grand Bend, Parkhill, Exeter, Watford, Lambton Shores, The Pinery Provincial Park, Bluewater, Clinton, Seaforth, Point Edward, Brights Grove, Camlachie, Wyoming, Reeces Corners, Kettle Point, Ipperwash Beach, Warwick and Port Franks.

Take cover immediately, if threatening weather approaches. Heavy downpours can cause flash floods and water pooling on roads. 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. Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors! Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are likely to produce or are producing 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. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to or tweet reports using #ONStorm. For more information:


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