Infographic: When A Tornado Destroys Everything

May 19, 2013; 1:18 AM ET
Share |

The Enhanced Fujita Scale is used to assign tornadoes a rating based on estimated wind speeds and damage.

The EF Scale became operational on Feb. 1, 2007. It was revised from the original Fujita Scale, developed in 1971 by Tetsuya Fujita, to better reflect wind speed with damage observed in tornado surveys.

Deadly Severe Weather Facts & Safety Tips:

Comments

Comments left here should adhere to the AccuWeather.com Community Guidelines. Profanity, personal attacks, and spam will not be tolerated.

More Weather News

Daily U.S. Extremes

past 24 hours

  Extreme Location
High N/A
Low N/A
Precip N/A

WeatherWhys®

This Day In Weather History

West Virginia (1989)
Lightning sets numerous house and trailer fires. Firefighters could not keep up with all the fires that were burning.

Northeast (1839)
Incredible "snow" hurricane whitened parts of the Catskills.

Santa Cruz (1929)
Coastal Steamer San Juan (over 2,000 tons) was rammed off Pigeon Point near Santa Cruz, CA by the oil tanker S.C.T. Doss which was proceeding at "excessive speed in fog without sounding fog signals". 70 passengers and crew of San Juan drowned.

Rough Weather