Conditions are favourable for the development of severe thunderstorms today.Main threats:- strong wind gusts up to 100 kilometres per hour- hail up to 2 centimetres in size- torrential downpours of 30 to 50 millimetres- a tornado is possibleNautical activities may be hazardous due to sudden, severe wind gusts over bodies of water.###Heavy rain can cause flash flooding and significant reductions to visibility.Strong wind gusts can damage trees, buildings and overturn vehicles.Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on X using #QCStorm.