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What percent of tornadoes are strong tornadoes?
In the United States, strong tornadoes, counted as those rated F2 or higher, account for about 11% of all tornadoes.
Do all tornadoes strike land?
Tornadoes are generally considered a land based phenomenon. There are however waterspouts which are essentially tornadoes on water, though they are generally not counted as tornadoes unless the hit land.
Why are count?
Tornadoes are counted to keep a statistical record and to verify the accuracy for forecasts.
Is tornado a natural disaster?
Yes, a tornado is counted as a natural disaster.
How many tornadoes have hit the US since April 9 2011?
It is difficult to determine right now as tornadoes are still being counted from a record outbreak. A good estimate, might be that there have been 350 to 400 tornadoes in the U.S. since April 9.
How many tornadoes have occurred on us soil in the past decade?
In the past 10 years (counted as 2002 to 2011 as data for 2012 so far is preliminary) there have been 13,411 confirmed tornadoes in the U.S.
Is a tornado classed as wind?
A tornado is a type of wind storm, but in weather statistics, tornadoes are generally counted separately from other wind events.
How many categories does a waterspout have?
There are no categories for waterspouts specifically. However, waterspouts that hit land are counted as tornadoes. Tornadoes are rated on the Enhanced Fujita scale, which has six levels from EF0 to EF5. Very few waterspouts are stronger than EF1.
Is a waterspout a tornado?
Yes it is a tornado over the water. However it is easier for a tornado to form over water and is generally smaller and weaker. Waterspouts are generally not officially counted as tornadoes unless they hit land.
What do they call tornadoes in US?
Tornadoes in the U.S. are called tornadoes.
What are the 3 general categories of tornadoes?
Tornadoes are sometimes divided into "weak" tornadoes "strong" and "violent" tornadoes. Weak tornadoes are those rated EF0 and EF1. Most tornadoes are weak. Strong tornadoes are those rated EF2 and EF3. Violent tornadoes are those rated EF4 and EF5. They are the rarest of tornadoes, only about 1% of tornadoes are this strong.
Is there any extreme tornadoes?
It depends on what you mean by extreme. Tornadoes of EF4 and EF5 tornadoes, however are often referred to as violent tornadoes. These account for about 1% of all tornadoes.
