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There are three scales used for rating tornadoes. All of them use damage to estimate wind speed.

The best known scale and first to be developed is the Fujita (F) scale,created in 1971, which goes for F0 at the weakest to F5 at the strongest most countries today use the Fujita scale.

Next is the little-known TORRO (T) scale developed in 1975. It goes from T0 at the weakest to T11 at the strongest. In a sense it divides each level on the Fujita scale in two (T0 and T1 equal an F0, T10 and T11 equal an F5). It is used chiefly in Britain.

Finally there is the Enhanced Fujita (EF) scale, developed in 2007, which goes from EF0 to EF5. It is much like the original Fujita scale and has much the same categories. But it involves more detailed damage analysis and uses different wind estimates as the original one were found to be inaccurate, especially for F4 and F5 tornadoes. It is used only in the U.S.

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Q: What scale do they us for tornadoes?
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Related questions

What scale do the us have for tornadoes?

the fujita scale coverted into Enhanced fujita scale


When did they start using the Fujita scale to rate tornadoes?

Us of the Fujita scale was started in 1971. It was replaced in the U.S. by the Enhanced Fujita scale in 2007.


What is the name of the scale that ranks tornadoes?

The Fujita scale


Do tornadoes have a scale?

yes, they are measured by the Fujita scale.


Do scientists use the Fujita scale for hurricanes or tornadoes?

The Fujita scale is used to rate tornadoes. Hurricanes are rated on the Saffir-Simpson scale.


When did the US begin using this scale to measer the tornadoes?

It depends on which scale you're talking about. The original Fujita scale was first used in 1971. The Enhanced Fujita scale was first used in 2007.


How are most tornadoes classified as in the US?

Tornadoes in the U.S. are rated on the Enhanced Fujita scale (or the original Fujita scale fore tornadoes Prior to February 2007), which runs from EF0 at the weakest to EF5 at the strongest. Ratings are based on wind speed estimates derived from the severity of the damage done. About 60% of tornadoes are rated EF0.


The Fujita Scale classifies tornadoes based on their wind speed and the?

The Fujita scale classifies tornadoes based on damage.


What is the scale on tornadoes?

Tornadoes are rated on the Enhance Fujita scale from EF0 to EF5 based on the severity of the damage they cause.


What is the name of the scale currently used to classify tornadoes?

Tornadoes in the U.S. are currently classified on the Enhanced Fujita Scale.


Are Enhanced Fujita Scale tornadoes more powerful than Fujota Scale tornadoes?

No. The tornadoes are the same strength. The Enhanced Fujita scale is just a more advanced way of analyzing the strength of a tornado.


How did the F-scale help scientist learn more about unpredictable tornadoes?

The Fujita scale does not help in predicting tornadoes, but it is a useful tool in statistical studies of tornadoes, where singling out stronger or weaker tornadoes is useful.