3:13 PM EDT Monday 13 May 2024 Severe Thunderstorm Watch in effect for: Dufferin - Innisfil Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain. Hazards: Up to toonie sized hail Wind gusts up to 90 km/h Heavy rainfall with locally up to 50 mm An isolated tornado threat Timing: Late this afternoon into this evening. Discussion: Scattered thunderstorms are expected to develop late this afternoon along a northeast-to-southwest oriented front. Because of the orientation of the front, training thunderstorms are possible which will lead to the potential for local rainfall amounts up to 50 mm. There is some indication that an isolated tornado threat may develop, but the potential remains quite low at this time. 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. Remember, severe thunderstorms can produce tornadoes. Heavy downpours can cause flash floods and water pooling on roads. 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 .
