12:47 PM EDT Sunday 28 July 2024 Heat Warning in effect for: Webequie A heat event continues today. Maximum daytime temperatures of near 30 degrees Celsius are expected, with humidex values approaching 37. Overnight minimum temperatures will be 17 to 20 degrees Celsius. There is a possibility that showers and thunderstorms may keep maximum daytime temperatures a few degrees cooler today for parts of northwestern Ontario. At this time, a cooler and less humid airmass is expected to arrive tonight. Extreme heat can affect everyone?s health. The health risks are greater for older adults, infants and young children, pregnant people, people with physical and/or mental illnesses, and people with disabilities or mobility issues. Never leave people, particularly children, or pets inside a parked vehicle. 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 . Watches 1:47 PM EDT Sunday 28 July 2024 Severe Thunderstorm Watch in effect for: Webequie Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain. Hazards: Torrential downpours with 50 mm falling within an hour. Strong wind gusts up to 90 km/h. Nickel to ping-pong sized hail. Risk of a tornado. Timing: Today through this evening. Discussion: Thunderstorms moving through the area may be severe. 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 .