A massive tornado intercepted by a storm chaser in South Dakota was seen twisting and transforming right before him.

At 5:19 p.m. on Tuesday, the National Weather Service released a tornado warning in effect until 5:45 p.m. for Bucks and ...

The National Weather Service has confirmed an EF-2 tornado hit the Town of Phelps on Monday night after surveying the damage ...

3:21 p.m. EDT - A tornado watch is in effect across portions of northern Ontario amid a severe storm threat on Saturday ...

4:18 p.m. CDT - A tornado watch remains in effect across portions of northern Ontario as a line of severe thunderstorms moves ...

More than 150 died when a twister tore through Joplin in 2011, making it the deadliest tornado in the last seven decades.

A tornado watch has been issued for some parts of central Alberta due to severe thunderstorms popping up Wednesday afternoon.

Severe storms may bring large hail, strong winds and a low tornado threat to Alberta mid-week. Alberta's heat wave is peaking ...

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

NBC’s new series “Survival Mode” featured a story about the 2011 Joplin, Missouri, tornado that killed 161 people and injured over 1,000 residents.