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.

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 incorporates 28 damage indicators (DIs) such as …

The EF Scale was revised from the original Fujita Scale to reflect better examinations of tornado damage surveys so as to align wind speeds more closely with associated storm damage. The …

An Enhanced Fujita (EF) Scale, developed by a forum of nationally renowned meteorologists and wind engineers, makes improvements to the original F scale. This EF Scale has replaced the …

2025年1月10日 · Moderate tornado 73-112 mph The lower limit is the beginning of hurricane wind speed; peels surface off roofs; mobile homes pushed off foundations or overturned; moving …

Since 2007 in the U.S., the new Enhanced F-scale has become the standard for assessing tornado strength and resultant damage. In the original F-scale, wind speeds were based on …

2024年4月26日 · A tornado outbreak occurred across Nebraska and Iowa during the afternoon and evening hours of Friday, April 26, 2024. Several significant, long-tracked tornadoes …

2021年1月26日 · Assigning a Tornado Rating Using the EF Scale. The NWS is the only federal agency with authority to provide 'official' tornado EF Scale ratings. The goal is assign an EF …

The Fujita Tornado Scale, usually referred to as the F-Scale, classifies tornadoes based on the resulting damage. This scale was developed by Dr. T. Theodore Fujita (University of Chicago) …

Ratings on the scale ranged from F0 for the weakest tornadoes (light damage) to F5 for the most violent (incredible damage), with estimated wind speeds for each rating. However, for affected …