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.

Enhanced Fujita Scale Weather.gov > Tallahassee, FL > Enhanced Fujita Scale Current Hazards Current Conditions Radar

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 Fujita Scale Weather.gov > Atlanta/Peachtree City, GA > The Fujita Scale Current Hazards Current Conditions Radar

For over three decades prior to 2007, the most widely used method worldwide for estimating tornado strength and wind speed was the F-scale developed by Dr. Theodore (Ted) Fujita. …

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.

The National Weather Service is the only federal agency with authority to provide 'official' tornado EF Scale ratings. The goal is to assign an EF Scale category based on the highest wind speed …

Nov 24, 2001 · ** Important Note about the Enhanced F-Scale Winds: The Enhanced F-Scale still is a set of wind estimates (not measurements) based on the damage. It uses three-second …

Select a tornado from the table to zoom into the track and view more information. The default table view is limited to 8 tracks, but can be scrolled by a mouse wheel or dynamically expanded.

Recent tornado events have highlighted the need for a definitive F-scale assessment guide to assist our field personnel in conducting reliable post-storm damage assessments and …