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An "EF-Unknown" (EFU) category was later added for tornadoes that cannot be rated due to a lack of damage evidence. [ 4 ] As with the Fujita scale, the Enhanced Fujita scale is a damage scale and only an estimate for actual wind speeds.
Completed Tornado Diagram. Tornado diagrams, also called tornado plots, tornado charts or butterfly charts, are a special type of Bar chart, where the data categories are listed vertically instead of the standard horizontal presentation, and the categories are ordered so that the largest bar appears at the top of the chart, the second largest appears second from the top, and so on.
The 1977 Birmingham–Smithfield F5 tornado's damage was surveyed by Ted Fujita and he "toyed with the idea of rating the Smithfield tornado an F6". [13] In 2001, tornado expert Thomas P. Grazulis stated in his book F5–F6 Tornadoes; "In my opinion, if there ever was an F6 tornado caught on video, it was the Pampa, Texas tornado of 1995". [14]
Here's how tornadoes are rated on the Enhanced Fujita scale and what those ratings mean. What is the Enhanced Fujita scale? What to know about EF tornado categories
NWS rates the force of a tornado by wind speed and the damage it leaves behind on a scale named for meteorologist Ted Fujita and refined in 2007 as the "Enhanced Fujita" — EF — in categories ...
Eight of the tornado warnings issued during the event by the NWS offices in Memphis, Tennessee, and Paducah, Kentucky were tornado emergency declarations, the most issued during the month of December. EF4 damage occurred in or near the communities of Cayce, Mayfield, Cambridge Shores, Princeton, Dawson Springs, and Bremen.
The Xenia, Ohio, F5 tornado of April 3, 1974.This was one of two tornadoes to receive a preliminary rating of F6, which was downgraded later to a rating of F5. [1]This is a list of tornadoes which have been officially or unofficially labeled as F5, EF5, IF5, T10-T11, the highest possible ratings on the various tornado intensity scales.
The International Fujita scale (abbreviated as IF-Scale) rates the intensity of tornadoes and other wind events based on the severity of the damage they cause. [1] It is used by the European Severe Storms Laboratory (ESSL) and various other organizations including Deutscher Wetterdienst (DWD) and State Meteorological Agency (AEMET).