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

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

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

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

Both tornado warnings and watches are in effect for parts of Ontario as powerful storms sweep through the region. The setup brings the risk of tornadoes, large hail, damaging winds, and intense ...

Any severe thunderstorms that form across northwestern Ontario could pack damaging winds, large hail, and heavy rainfall. One or two tornadoes are possible, especially around the international border ...

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

There is a small risk of a tornado in this area on Saturday. The storms will form into a line and continue moving east across parts of central Ontario.

Environment Canada has issued a severe thunderstorm watch west of Gatineau Thursday, noting a tornado could develop.The watch ...

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

Environment Canada has issued a severe thunderstorm watch for almost all of western Quebec Thursday afternoon and evening, noting a tornado could develop.Forecasters also mention strong gusts of wind, ...

At 4:52 p.m. EDT on Saturday, the National Weather Service issued a severe thunderstorm warning in effect until 5:45 p.m. EDT ...