F1, F2, etc...
2007-12-21 10:05:44 · 5 answers · asked by Mr. Bull 5 in Science & Mathematics ➔ Weather
It is the Fujita scale. It ranges from F-0 to F-5. In 2006 in conjunction with the NSSL, NWS, and SPC. (National severe storms laboratory, National Weather Service, and the Storm prediction Center) changed and updated the fujita scale now called the Enhanced Fujita scale. It still ranges from EF-0 to EF5.
Damage wise-
EF-0 to EF1 tornado can tear parts of roofs off, flip cars, damage weak buildings.
EF2-EF-3 can take outside walls down take roofs off, damage to homes can be extensive.
EF-4 can demolish homes, toss cars for many yards in the air, not likely to survive if not under ground or in a reinforced shelter.
EF-5 is the most intense tornado, can take will built homes off their foundations. Chances of survival if not under ground or in a reinforced shelter is slim to none. With winds up and over 300 mph any little debris is deadly.
2007-12-21 10:32:50 · answer #1 · answered by WR 5 · 3⤊ 0⤋
What Does Tornado Mean
2016-10-04 03:22:39 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Tornadoes seldom pass over anemometers and when they do, they often destroy them so it is difficult to measure the wind speed in a tornado. In the early 1970s, Fujita proposed his scale or F0 to F5 to estimate the wind speed in a tornado based on the damage done. F0 is low levels of damage while F5 is complete destruction. Most tornadoes are F0 to F2. F5 is very very rare. There were more F5 tornadoes in the movie "Twister" than have been seen for decades.
Interestingly, the same movie had a newsreader on TV talking about F5 tornadoes a few years before Fujita devised his scale.
2007-12-21 10:26:18 · answer #3 · answered by tentofield 7 · 2⤊ 0⤋
It is of course based upon Dr. Ted Fujita, my old friend, who collaborated with me on research for the USAF in Guam in the early 1970's. I have so many wonderful stories about this man that I could spend half a day telling them. The Fujita scale rates tornadoe intensity and damage. Fujita developed this scale while never seeing a tornado until the last few years of his life.
2007-12-21 11:28:58 · answer #4 · answered by 1ofSelby's 6 · 4⤊ 0⤋
It basiccally means the strength and power of the tornado. The more F's, the more powerful the tornado is. I hope this helps. Thanks.=]
2007-12-21 10:13:45 · answer #5 · answered by Atomic T 2 · 0⤊ 0⤋
F is the initial letter to "Fujita".
Fujita is a scale to measure the destruction of a tornado.
It varies from F1 to F5 (the most destructive one).
FCH.
2007-12-21 10:12:12 · answer #6 · answered by Anonymous · 4⤊ 0⤋