The Enhanced Fujita scale (abbreviated as EF-Scale) rates tornado intensity based on the severity of the damage they cause. It is used in some countries, including the United States and France. [ 1 ] The EF scale is also unofficially used in other countries, including China and Brazil.

The Enhanced Fujita Scale or EF Scale, which became operational on February 1, 2007, is used to assign a tornado a 'rating' based on estimated wind speeds and related damage. When tornado-related damage is surveyed, it is compared to a list of Damage Indicators (DIs) and Degrees of Damage (DoD) which help estimate better the range of wind ...

2021年10月21日 · While (E)F6 tornadoes may not be impossible, and the categorization does theoretically exist... in practicality, there is no need for such a value, as the damage would be complete whether in an (E)F5 or (E)F6+.

categorize each tornado by its intensity and its area; estimate a wind speed associated with the damage caused by the tornado; Dr. Fujita and his staff showed the value of the scale's application by surveying every tornado from the Super Outbreak of April 3-4, 1974.

Enhanced F Scale for Tornado Damage. An update to the the original F-scale by a team of meteorologists and wind engineers, to be implemented in the U.S. on 1 February 2007.

The EF Scale will still rate tornado categories from zero to five, but the ranges of wind speed in each category are now more accurate. The EF Scale takes into account more variables than the original F Scale did when assigning a wind speed rating to a tornado.

The EF Scale, which became operational on February 1, 2007, is used to assign a tornado intensity 'rating' based on estimated wind speeds and related damage. When tornado-related damage is surveyed, it is compared to a list of Damage Indicators (DI) and Degrees of Damage (DoD) which help better estimate the range of wind speeds the tornado ...

2024年5月4日 · These tornadoes are now given the rating of EF-Unknown or EFU. Another way tornadoes can be rated EFU is when their tracks are found by drones or even high-resolution satellites after the fact,...

2023年5月1日 · Less than 5% of all tornadoes are rated EF3 or higher. One such tornado in March 2022 struck near New Orleans, hitting Arabi, Louisiana, with 160-mph winds. At least one person was killed and...

Over time, various methods have been developed to categorize tornadoes, with the most notable transition occurring from the Fujita (F) scale to the Enhanced Fujita (EF) scale. Let’s delve into the evolution of these rating systems and explore the differences in the factors utilized to assess tornado intensity.