Under the original F scale, an F5 rating was given as follows ... EF5 tornado to hit the U.S. was the infamous 2013 Moore, Oklahoma, tornado. This violent tornado was on the ground for more ...

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% ...

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) to provide estimates of tornado ...

The violent tornado that forever scarred Moore, Oklahoma, took less than ten minutes to carve from ... Both scales range from F0/EF-0 (“weak”) to F5/EF-5 (“incredible”), with the top of the scale ...

Millions of Americans across the country are on alert for a severe weather outbreak as violent, long-track tornadoes with ...

Both Norman and Moore have announced plans for the upcoming tornado season, outlining options to keep students, teachers, bus ...