A risk for thunderstorms will redevelop on Sunday as a cold front pushes into an unstable atmosphere across southern Ontario.

A tornado warning has been issued for Savant Lake and Sturgeon Lake in northwestern Ontario. Here's the latest from ...

Conditions favourable for severe thunderstorms will build across portions of Ontario on Saturday as a low-pressure system ...

Summer in Ontario may bring with it warm weather, but last week's tornado in Lucan is a reminder that it’s also tornado season.

Localized flooding and strong wind gusts will be the predominant threats Sunday—but some rotation can’t be ruled out ...

Widespread risk of heavy rain and strong winds across Ontario as strong storms develop Saturday. A tornado threat also exists ...

Environment Canada's tornado warning for eastern Ontario has ended. From about 3:20 until 4 p.m. the agency said a severe ...

Severe weather researchers say a weak tornado touched down in a community north of London, Ont., on Monday afternoon.

Severe weather moves east from southern Ontario with raised instability threat throughout eastern Ontario and southern Quebec ...