Caught in the Storm tells the story of a deadly EF5 tornado in Joplin, Missouri, and here's why storms are classified this ...

which ranges from EF0 to EF5. Originally created by famed tornado researcher Ted Fujita, the scale takes into account estimated wind speeds, observed damage and damage verified in weather service ...

Severe thunderstorms ripped through Ohio last night. But it's not a tornado until the National Weather Service can confirm it. Here's how.

Could it be that tornadoes are getting weaker ... suggest that a slight adjustment to the EF-scale's wind speed threshold for an EF5 from 201 mph to 190 mph would lead to consistent 5-level ...

Tornadoes are among the strongest and deadliest types of weather, capable of destroying entire neighborhoods in minutes. However, the most powerful tornadoes, classified as EF5, make up less than 1% ...