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 ...

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

Meteorologists say a deadly tornado in North Dakota this summer has been upgraded to a top-of-the-scale EF5, and was the ...

Severe weather outbreaks can happen almost anywhere in the U.S., including the Desert Southwest. Here's what happened in this ...

A deadly tornado that ripped through a rural city in North Dakota in June​ has been upgraded to an EF-5, the National Weather ...

The d eadly tornado that struck Enderlin, North Dakota, in June has been classified as an extremely rare EF-5 storm, the ...

MONTICELLO, Utah (AP) — Tornadoes destroyed several homes in southeastern Utah over the weekend, but authorities said there were no reports of people injured. A storm produced two tornadoes in San ...

In recent years, large wildfires have laid waste to towns in the West. But two late 19th-century fires in the upper Midwest ...

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 ...