Conditions are favourable for the development of dangerous thunderstorms that may be capable of producing damaging wind gusts, large hail and heavy rain. Hazards: Wind gusts up to 100 km/h Nickel to toonie sized hail Heavy rainfall with rainfall rates exceeding 40 mm per hour Total rainfall amounts could approach 70 mm A tornado is also possible. When: This afternoon into this evening. ### Significant damage to property, buildings and trees is possible. Heavy rain can cause flash flooding and significant reductions to visibility. Strong wind gusts can damage trees, buildings and overturn vehicles. Large hail can cause significant damage and injury. Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information: https://www.ontario.ca/page/be-prepared-emergency.