Under the Enhanced Fujita scale, there are seven categories of storm. The lowest category is EFU, which is used for storms that don't have enough data or cause enough damage to be classified.

With severe weather season in full swing, you’ll start to hear some terms being thrown around when describing certain events.

EF-0 is the weakest tornado rating on the Enhanced Fujita Scale, with winds ranging from 65 to 85 mph. The survey reported 65 ...

The tornado’s initial touchdown occurred at 6:45 p.m. Saturday. The EF2 tornado appeared five miles south of Kadoka and ...

The Enhanced Fujita Scale became operational on February 1, 2007. It was designed to rate tornadoes based on estimated wind speeds and related damage. The strength of a tornado has nothing to do ...

Enhanced Fujita Scale: The EF Scale refines those damage indicators by considering the quality of the structures affected. It differentiates between types of buildings, ...

More than 10 tornadoes were recorded in central Illinois on Wednesday, according to the National Weather Service. Find out ...

This is the time of year, when Texas sees more severe thunderstorms that can spawn tornadoes, you might hear more about where a twister ranked on the Enhanced Fujita scale or its EF rating.Among ...

Severe storms spawned multiple tornadoes in south central North Dakota, including north of Bismarck, which led to some damage ...

The Enhanced Fujita Scale, love it or hate it, is our current system for rating the hundreds of tornadoes that occur each year across the United States. To much chagrin, ...

The Enhanced Fujita Scale, love it or hate it, is our current system for rating the hundreds of tornadoes that occur each year across the United States. To much chagrin, it rates tornadoes solely ...