Tornadoes are a relatively rare event. Only a tiny percentage of thunderstorms ever go on to produce a tornado. No two twisters are alike—and some of those storms are truly bizarre. From twin ...

Teacher captures the moment the EF-5 tornado hit Briarwood Elementary. May 23, 2013— -- Cellphone video recorded by an Oklahoma teacher at Briarwood Elementary School shows the exact moment an ...

Two historic, extreme weather events separated by just over 100 miles happened on one July day in the upper Midwest. On July 18, 1996, 29 years ago this evening, a violent tornado roared through the ...

The nation's longest "drought" between EF5 tornadoes has come to an end, scientists from the National Weather Service ...

The most rare and extreme form of tornado struck eastern North Dakota in June, but experts just determined how strong it really was.

For the first time in 12 years, the United States has recorded an EF5 tornado, the most powerful type of twister on the Enhanced Fujita wind and damage scale, the National Weather Service confirmed ...

A total of six F5 tornadoes have scraped the Texas landscape before the Enhanced Fujita scale was adopted in 2007, including one near Brownwood in 1976. The weather service office for Houston and ...

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.

We've discussed May's deserved reputation for both violent tornadoes and large outbreaks. In Texas, two of its worst tornadoes of all time happened in the middle of May, each in one of the state's ...