9:18 PM EDT Tuesday 13 August 2024 Severe Thunderstorm Watch in effect for: Chapleau - Missinaibi Lake Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts and large hail. Hazards: 90 km/h wind gusts. Nickel sized hail. Timing: Tonight. Discussion: Scattered thunderstorms have developed that may be capable of producing 90 km/h wind gusts and nickel sized hail. These storms will dissipate tonight as daytime heating comes to an end. 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! Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches. 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. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm . For more information: ontario.ca/page/be-prepared-emergency .