Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain.What:Wind gusts up to 90 km/hNickel sized hailHeavy rainfall, with up to 30 mm possible in an hourWhen:This afternoon into this evening.###Heavy rain can cause flash flooding and significant reductions to visibility.Strong wind gusts can damage trees, buildings and overturn vehicles.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 #QCStorm.