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Answered 2017-04-17 02:04:09

A tornado is a violent, whirling windstorm that crosses land in a narrow path. It can result from wind shear and updrafts inside a thunderstorm. The usual form is a funnel-shaped cloud with destructive spinning winds, that descends from a cloud to the ground over a relatively short period of time.

Powerful tornadoes create the highest wind speeds on the surface of the Earth, which may be in excess of 200 mph (320 kph). The winds and debris will destroy houses and similar structures, and may cause numerous fatalities. Tornadoes are spawned by mesocyclones, and also form as tropical cyclones come ashore.

According to the Glossary of Meteorology (AMS 2000), a tornado is "A violently rotating column of air, pendant from a cumuliform cloud or underneath a cumuliform cloud, and often (but not always) visible as a funnel cloud." Literally, in order for a vortex to be classified as a Tornado, it must be in contact with the ground and the cloud base. Weather scientists haven't found it so simple in practice, however, to classify and define Tornadoes.

Tornado is sometimes referred to as "twister". A tornado is a rotating column of air in contact with the ground and looks like a funnel cloud.

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When is a tornado considered a tornado?

A tornado is considered a tornado when it reaches the ground

Is the haboob tornado a tornado?

No, a haboob is not a tornado.

When does a tornado actually become a tornado?

A tornado becomes a tornado when the circulation reaches the ground.

When a tornado is spotted what is the warning that is put out?

when a tornado is spotted a tornado warning is put out. If it is a large tornado a tornado emergency may be issued.

What is a tornado watch and a tornado warning?

A tornado watch is a watch that is watching out for tornadoes. A tornado warning is a warning That lets you know that a tornado is spotted.

How do you say tornado in Portuguese?

tornado in Portuguese is tornado too

Is a tornado warning more severe or a tornado watch?

A tornado warning. A tornado watch means general conditions are favorable for tornadoes. A tornado warning means the threat of a tornado is imminent.

Can you stop a tornado with another tornado?

No, you cannot stop a tornado with another tornado. The two tornadoes would simply merge and form a larger tornado.

What is a tornado alarm?

A tornado alarm or tornado siren is a loud siren found in some tornado prone areas that sounds when a tornado warning is issued.

What is a name for a tornado?

a tornado?

What does spawn a tornado mean?

When a storm spawns a tornado it produce a tornado.

Is tornado a verb?

No. Tornado is a noun. As in "The tornado destroyed many homes."

Does the vortex of a tornado affect the size?

Yes. The vortex of a tornado is the tornado.

What is the calmest part in a Tornado?

The eye of the tornado is the calmest part of a tornado.

Did Baltimore have a tornado before?

Yes. Baltimore was hit by an F2 tornado in 1973, an F0 tornado in 1996, an EF1 tornado in 2010, and an EF0 tornado in 2013.

If a tornado have been seen is that a tornado watch?

No, a tornado watch is issued when the general weather conditions can produces tornadoes. If a tornado is spotted a tornado warning is issued.

What are famous tornadoes?

The Natchez, MS tornado of 1840The St. Louis, MO tornado of 1896The Tri-State Tornado of 1925The Tupelo, MS tornado of 1936The Worcester, MA tornado of 1953The Xenia, OH tornado of 1974The Wichita Falls, TX tornado of 1979The Oklahoma City tornado of 1999The Joplin, MO tornado of 2011The Moore, Oklahoma tornado of 2013

Why is a tornado warning more urgent than a tornado watch?

I used to live in Tornado Alley... a tornado watch means that the weather conditions mean it is very likely that a tornado will form in an area. A tornado warning means a tornado has touched down nearby.

What is a difference between a tornado drill and a tornado warning?

A tornado drill is like a fire drill but for tornadoes: practice for the possibility of a tornado. A tornado warning means that a tornado has been detected or is likely to form soon.

What was the category of the worst tornado?

The worst tornado in U.S. history, the Tri-State tornado, was an F5. The worst tornado in the world was the Daultapur/Saturia Bangladesh tornado of April 25 1989. The intensity of this tornado is unknown.

What is a tornado emergency?

A tornado emergency is a special kind of tornado warning that is issued when a large tornado is threatening a populated area. A tornado emergency indicates a more dangerous situation than an ordinary tornado warning.

Was the 1999 Oklahoma tornado part of tornado alley?

The Oklahoma City tornado of 1999 occurred in Tornado Alley, but so is every tornado in the central part of Oklahoma.

Pictures of the biggest tornado ever?

The largest tornado on record was the Hallam, Nebraska tornado. Below is some video of the tornado.

How do you know when a tornado is near?

If there is a tornado then the National Weather Service will issue a tornado waring saying a tornado has been detected.

What is a tornado made of air?

A tornado made of air is a tornado. Part of the definition of a tornado is "a violently rotating column of air."