Table of Contents

## What does the Fujita scale measure?

tornado damage intensity
The Fujita Scale Fujita Scale (or F Scale) of tornado damage intensity. The F Scale was developed based on damage intensity and not wind speed; wind speed ranges given are estimated, based on the extent of observed damage.

How are tornadoes measured and what is the scale?

Tornado strength is currently measured on what is called the Enhanced Fujita Scale (adapted from the simpler Fujita Scale in 2007), which gives the tornado a rating from 0 to 5 based on estimated wind speeds and the severity of the damage.

### How does the Enhanced Fujita Scale work?

By looking at the amount of damage caused to different types of structures, scientists assign the storm an Enhanced Fujita scale classification. From the amount of damage they see, they then try to reverse engineer the storm’s wind speeds. As it tracks along the ground, a tornado’s power can change.

What are the magnitudes of tornadoes?

The Fujita Scale

F-Scale Number Intensity Phrase Wind Speed
F0 Gale tornado 40-72 mph
F2 Significant tornado 113-157 mph
F3 Severe tornado 158-206 mph
F4 Devastating tornado 207-260 mph

#### What percentage of tornadoes are F4 or F5?

about two percent
Tornadoes that are intense enough to warrant an F4/EF4 or F5/EF5 rating are classified as “violent.” Fortunately, these tornadoes are extremely rare, accounting for only about two percent of all tornadoes.

Is an F6 tornado possible?

There is no such thing as an F6 tornado, even though Ted Fujita plotted out F6-level winds. The Fujita scale, as used for rating tornados, only goes up to F5. Even if a tornado had F6-level winds, near ground level, which is *very* unlikely, if not impossible, it would only be rated F5.

https://www.youtube.com/watch?v=sLDrTME1NSM