Farther north, a cold front over far northwestern Ontario will force the development of several rounds of additional ...

Thursday is shaping up to be the most active day of the week for severe weather potential in Ontario and Quebec, with a ...

A strong supercell thunderstorm that crossed parts of southwestern Ontario on Saturday produced three separate tornadoes in ...

Environment Canada issued tornado and severe thunderstorm warnings for parts of northwestern Ontario on Sunday.

A multi-day stretch of severe weather is setting up for northwestern Ontario, with the potential for heavy rain, large hail ...

Severe storms swept across Ontario Thursday, cutting power to thousands and toppling trees and power lines. Officials are ...

Parts of southern Ontario could get severe thunderstorms with a risk of a tornado on Thursday. While the heat warning ...

Ontario's ongoing severe storm threats this week will be on the move Wednesday and Thursday, shifting farther south and east ...

Large hail is expected to be the biggest threat, ranging from the size of a loonie to a ping pong ball-sized hail. Between ...

Folks in southern Ontario will see multiple opportunities for thunderstorms during the day Saturday, a few of which could ...

Environment Canada updates that conditions are favourable for the development of dangerous thunderstorms that may be capable ...

More than 35,000 local customers are without power after Thursday evening's series of thunderstorms.Severe thunderstorm ...