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

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

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 ...

Residents across parts of New Brunswick are advised to monitor the forecast closely as severe weather, including the ...

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 ...

Strong Winds Strong winds of 55 mph or more can cause significant damage even though no tornado is present. "Downbursts" are columns of air that slam to the earth and spread high winds in many ...

Take cover, a tornado warning was issued by the National Weather Service in Mount Holly on Tuesday, July 1, from 4:47 p.m.

On Tuesday at 5:02 p.m. the National Weather Service issued an updated tornado warning in effect until 5:15 p.m. for Berks ...