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 ...

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

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

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

Nine states across the southern Plains are under the threat of severe thunderstorms, with parts of Arkansas and Oklahoma, in particular, threatened by storms capable of generating a few tornadoes ...

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 Juan County in southeastern ...

Tornadoes were spotted around the Navajo Nation and at least one touched down near a community in southeastern Utah. Tornadoes are rare in Arizona, but as many as four to six develop each year, ...

MONTICELLO, Utah — 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 Juan ...

The US experiences more tornadoes than any other country in the world. This documentary explores the science, the geography, and the danger behind it.

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 ...

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