There are three tornado scales currently in wide use.
The first and most well-known is the Fujita scale, which runs from F0 to F5. This scale rates tornadoes based on the severity of the damage they cause and provides courresponding wind speed estimates.
Next is the Enhanced Fujita scale. This replaced the Fujita scale in the United States in 2007, and in Canada in 2013. This scale is similar to the Fujita scale, running from EF0 to EF5. The difference is that it has more specific damage indicators and adjusted wind speed estimates for the damage levels.
Finally there is the TORRO scale used by some European countries. This scale rates tornadoes similarly based on damage, but runs from T0 to T11. Every two ratings on this scale are equivalent to one evel on the Fujita scale. That is, T0 an T1 are equivalent to F0 while T10 and T11 are equivalent to an F5.
No. Hurricanes and tornadoes operate on completely different scales, so they can't exactly collide. However, it is not uncommon for tornadoes to form in the outer rain bands of a hurricane.
No. Tornadoes do not damage the atmosphere.
Nearly all tornadoes in the southern hemisphere do. However in the northern hemisphere most tornadoes rotate counterclockwise. A small percentage of tornadoes rotate opposite of what is normal for their hemisphere. These are called anticyclonic tornadoes.
Libra is the holder of the scales.
Forecasters cannot predict exactly where a tornado will form, but they can detected conditions that lead to them. On long time scales such as hours and days, forecasters look at conditions such as temperature, humidity, and wind shear to determine if tornadoes are likely to form in a region. On time scales of minutes forecasters look for rotation in thunderstorms. If strong enough rotation is detected it means a tornado may form soon or has already developed. Tornadoes generally travel with their parent thunderstorms and so a forecaster can look at what direction a storm is moving to say what areas are potentially in its path.
Yes. Both tornadoes and hurricanes are vortices, though they are on entire different scales.
A tornado and a hurricane cannot "combine" as they operate on different scales. It is fairly common for tornadoes to produce tornadoes.
No. Hurricanes and tornadoes operate on completely different scales, so they can't exactly collide. However, it is not uncommon for tornadoes to form in the outer rain bands of a hurricane.
Hurricanes and tornadoes are rated on different scales. Hurricanes are rated on the Saffir-Simpson scale from category 1 to category 5. Tornadoes are rated on the Enhanced Fujita scale (formerly the Fujita scale) from EF0 to EF5.
Tornadoes do not have any known global impacts. They can, however, be devastating on local scales. They can rip up vegetation and destroy large portions of communities. Recovery can take years, even decades.
The "F" in tornado classification scales, such as the Fujita scale or the Enhanced Fujita scale, stands for Dr. Tetsuya Theodore Fujita, a Japanese-American meteorologist known for his research on severe convective storms, tornadoes, and microbursts.
Tornadoes are rated on the Fujita ("F") Scale, or, in the United States since 2007, the Enhanced Fujita ("EF") Scale. The Fujita scale goes from F0 to F5 and the Enhanced scale goes from EF0 to EF5. Hurricanes are rated on the Saffir-Simpson scale from category 1 to category 5.
Hurricanes don't turn into tornadoes because these two weather phenomena are formed by entirely different processes. However, tornadoes are frequently spawned by hurricanes and will go through their short life cycle as the hurricane makes landfall.
Set of scales
Tornadoes in the U.S. are called tornadoes.
They Have scales.
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.