Three people were killed in the tornado, which produced 210 mph winds, leveling homes and tossing fully-loaded box cars.

The first EF-5 tornado to hit the United States in 12 years was confirmed by the National Weather Service on Monday. It happened in June in North Dakota. The National Weather Service in Grand Forks, N ...

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 ...

While much of the country has cooled down, the southern U.S. is heating back up for a secondary round of storms — and ...

A just-released report found one weather disaster dwarfed all others so far this year. But one kind of weather disaster was ...

Tornadoes destroyed multiple homes in southeastern Utah over the weekend, but authorities said there were no reports of people injured. Three homes in the area were demolished in the storm, the Navajo ...

Severe weather outbreaks aren't just for the Plains, South or Midwest. From Oct. 5-6, 2010, 15 years ago, Arizona endured a bizarrely busy round of damaging severe thunderstorms, including huge hail ...

Tornadoes are complex and tough to predict but this short documentary from NASA is a good introduction to how they work. Researcher Tim Samaras explains how different weather systems collide across ...