Fujita tornado damage scale

A family van is exposed after the garage was blown apart following a tornado that passed through the neighborhood the night before on May 16, 2013 in Cleburne, Texas. (credit: Ben Torres/Getty Images)

Deadly Tornadoes Reached Wind Speeds Up To 200 MPH

The weather service said the preliminary storm estimate for the Granbury tornado was an EF-4, based on the Fujita tornado damage scale.