Tornado season is officially underway in Ontario as the first one touched down near Woodstock, Ont., a week ago, according to ...

A line of storms dropped Ontario's first tornado just north east of London. Details with Meteorologist Dylan Kikuta.

Areas in Durham Region, including Uxbridge, Beaverton, Pickering and Oshawa ... There is the risk of a possible tornado, Environment Canada warns.

You may have heard of widespread damaging thunderstorm winds events known as derechos. They're not just a U.S. thing. This ...