A sprawling storm system crossing the U.S. has overturned semitrucks on highways and fanned wildfires in Texas and Oklahoma.

Severe weather season usually begins to ramp up in March and lasts through the start of summer. The dramatic increase in sun ...

A powerful storm system that unleashed severe weather for millions of Americans from coast to coast this week is now taking ...

An outbreak of severe weather is expected in the Mississippi Valley into the Lower Ohio Valley on Friday afternoon, March 14, ...

A storm system, fueled by unseasonably warm air, could unleash significant tornado activity along the Middle and Lower ...

A tornado touched down in a Los Angeles County neighborhood early Thursday morning, a rare event in Southern California. With ...

Even by Plains standards, this was an unusually large, violent tornado outbreak so early in spring. One Kansas tornado was ...

A tornado hit central Florida on Monday, destroying two homes, uprooting trees and disrupting a FOX TV show as it was ...

A tornado caused major damage to at least one home in Seminole County as severe weather moving across Central Florida ...

Residents were urged to seek shelter after a tornado caused damage in Seminole County, Florida, the National Weather Service ...

A quirky aspect of the way we measure twisters helps explain why there hasn't been a top-tier-rated tornado in 12 years.

Researches found little evidence that tornadoes were getting weaker. Instead, it appears that a subjective tornado grading system is to blame.