Simply put, the EF5 tornadoes featured in Twisters and the F5 ones differ on the scale they are categorized on. The Fujita scale, introduced by meteorologist Dr. Tetsuya Theodore Fujita in the ...

Damage from the 1999 F5 tornado that struck Moore, Oklahoma. Photo courtesy NOAA. Dr. T. Theodore Fujita developed the Fujita Tornado Damage Scale (F-Scale ... EF-1 (86-110 mph) F1 (73-112 ...

The Fujita scale is used to determine how powerful a tornado is. The highest on the scale - an F5 - is used to categorise tornadoes travelling at up to 318mph (511km/h). These tornadoes can cause ...

The town of Sunfield, Illinois, about 65 miles southeast of St. Louis, was wiped out by one of the 25 tornadoes. It was later rated F5 after the Fujita scale was implemented in 1971. Incredibly, only ...