Meteorologists said this week that a deadly tornado in North Dakota this summer has been upgraded to a top-of-the-scale EF5, and was the first on American soil in 12 years.

The National Weather Service said the EF5 twister in North Dakota packed winds stronger than 200 mph, underscoring risks that ...

We haven't seen much severe weather recently in the U.S., but the country hasn't been nearly that fortunate in past Augusts. On Aug. 28, 1990, 35 years ago today, an F5 tornado raked through two ...

As the howling tornado bore down, Reed Timmer abandoned a tiny, soft-topped vehicle and sought shelter with a group underneath an overpass. This was early on in his storm-chasing career, in 1999, ...

“They call F5 tornadoes the ‘finger of God.’ Few have stared one in the face and survived,” said the late Bill Paxton’s character in the movie “Twister.” The “finger of God” nickname originated after ...