Three tornadoes are confirmed to have occurred in the same Ontario area last weekend. The Northern Tornadoes Project said ...

Several rounds of severe thunderstorms swept through northwestern Ontario during the day Sunday, first in the morning and ...

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

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

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

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

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

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 ...

Non-severe thunderstorms are expected through the early afternoon hours in southern Ontario, but we will see the severe ...

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

Ontario won’t catch a break from the active weather to kick off this final weekend of July as forecasters look at multiple ...