Instead, after a tornado hits, the U.S. National Weather Service uses a rating system it adopted in 1973 called the Fujita Scale. Devised by meteorologist Theodore Fujita in 1970, the F-scale ...

(WTWO/WAWV) – We owe much to the late Dr. Ted Fujita. His scale for classifying the strength of a tornado is still used today, more than 50 years after it’s introduction. He is responsible for ...