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

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

A recent study explores the puzzling decline in EF5 tornadoes, contributing it to more strict criteria in the Enhanced Fujita scale introduced in 2007.

Dallas-Fort Worth saw hurricane-force winds on Tuesday morning.

A tornado touched down in an open field on Feb. 24 in Codington County, the first time a tornado was documented in February in South Dakota history.

Don't treat tornado watches or warnings lightly. Deadly twisters can hit in Mississippi all year. See what the weather data ...

Llano County had the fewest, with 11. The National Weather Service uses the Enhanced Fujita Scale to determine how strong tornadoes are. The NWS does this by looking at damage caused and ...

The National Weather Service in Lake Charles has confirmed that a tornado touched down in Tyler County late Tuesday morning ...

Four of the more than 200 tornadoes that wreaked havoc on that date were rated as powerful EF5s on the Enhanced Fujita Scale. A tornado's duration can be anywhere from a brief moment or two ...

Tornadoes are classified by wind speed using the Enhanced Fujita Scale. (It replaced the original Fujita Scale in 2007.) Storms are ranked with numbers 0-5. The National Weather Service ...