11:46 AM EDT Saturday 29 June 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: Wind gusts near 90 km/h. Up to toonie sized hail. Timing: This afternoon into this evening. Discussion: Thunderstorm development is expected today northeast and east of Lake Superior. A line of thunderstorms northeast of Lake Superior is tracking east towards the area. Some of these thunderstorms may becoming severe with strong wind gusts and hail as the primary threats. The strength of these thunderstorms is highly dependent on how much clearing of clouds takes place during the day. 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. Locally heavy rain is also possible. Remember, severe thunderstorms can produce tornadoes. 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 .