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

Three videos captured by eyewitnesses show a suspected tornado as it moved through southwestern Ontario over the weekend. Tom ...

Three tornadoes touched down in Ontario on the coastline of Lake Huron over the weekend, according to the Northern Tornadoes Project.

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

A strong supercell thunderstorm that crossed parts of southwestern Ontario on Saturday produced three separate tornadoes in the span of an hour, researchers with Western University's Northern ...

Large hail is expected to be the biggest threat, ranging from the size of a loonie to a ping pong ball-sized hail. Between the afternoon to evening, multiple rounds of storms will continue to hit ...

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 ...

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

You could get into some heavy downpours, especially through those (southwestern) areas,” an Environment Canada meteorologist ...

Strong thunderstorms are expected to develop in the early to mid-afternoon hours and continue through the evening across ...

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