Tornadoes F what?

Question

What does the "F" in the measurements of tornadoes stand for? as in a, F1 , F2 ect.

Answer 1

Instead of using wikipedia, where the answers you acquire are subject to "scrutiny", I recommend you use this instead. This is provided by the SPC; the NOAA's Storm Prediction Center:

http://www.spc.noaa.gov/faq/tornado/f-scale.html

Answer 2

In response to "F-5 is the worst." This is true. But a side note, just recently, in the last few years, there was a recorded wind speed of an OK tornado with a wind speed of 318mph. According to the Fujita scale, an F-5 tornado (also assessed by damage) has winds up to a maximum of 318 mph! That means, according to Fujitas original scale, which went to 12 or something, this tornado was nearly an F-6!

However, this tornado's damage was that of an F-4/F-5, and besides, the scale now only goes to 5. 5 being the worst. A tornado with wind speeds of 400mph (if there ever could be one) would be an F-5.

Answer 3

Dr. T. Theodore Fujita first introduced The Fujita Scale in the SMRP Research Paper, Number 91, published in February 1971 and titled, "Proposed Characterization of Tornadoes and Hurricanes by Area and Intensity. Fujita revealed in the abstract his dreams and intentions of the F-Scale. He wanted something that categorized each tornado by intensity and area. The scale was divided into six categories:


F0 (Gale)

F1 (Weak)

F2 (Strong)

F3 (Severe)

F4 (Devastating)

F5 (Incredible)
Dr. Fujita's goals in his research in developing the F-Scale were categorize each tornado by it intensity and its area estimate a wind speed associated with the damage caused by the tornado
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.

Answer 4

The "F" scale is named after Dr. Fujita who developed the scale based on tornado damage. The scale ranges from F-0 to F-5.
F-5 toradoes are the worst.

Answer 5

The F stands for Fujita, the last name of the man who developed the scale. The number part (1 to 5) is based on how much damage is done.

Answer 6

Tornadoes are measured using the Fujita Scale are are depended on the speed of the torando's wind.

Answer 7

The F level of tornadoes has to do with a relative measure of it dangerous. This measure takes account of several characteristics: velocity, size, etc.

Answer 8

The Fugita scale can be seen on the graph at the bottom of this page:

http://en.wikipedia.org/wiki/Tornado

Answer 9

i guess how wicked the tornado will be or how large

Answer 10

1) trailer parks
2) wood-built houses
3) anything in their path