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It becomes a tornado, obviously.
Either the funnel cloud or the violent, rotating winds associated with it must reach the ground in order to be classified as a tornado.
tornado
tornado is often made visible by a distinctive funnel-shaped cloud. Commonly called the condensation funnel, the funnel cloud is a tapered column of water droplets that extends downward from the base of the parent cloud. It is commonly mixed with and perhaps enveloped by dust and debris lifted from the surface.
Yes. If a tornadic vortex does not make contact with the ground it does not meet the defintion of a tornado, and is simply called a funnel cloud. If the violent circulation (not necessarily the visible funnel) reaches the ground it is considered a tornado.
Not sure what you mean by a funnel tornado. If you are referring to the Seymour, Texas tornado of April 10, 1979, it had a well-defined funnel and it was funnel-shaped. However, it did touch down so it was not merely a funnel cloud.
tornado clouds
A tornado that does not touch the ground is a funnel cloud.
A funnel cloud is like a tornado only it does not reach the ground.
A funnel cloud is a developing tornado that has not reached the ground.
Yes. A tornado is often visible as a funnel cloud as it develops.
A tornado starts out as a funnel cloud.
The "eye" of a tornado is at the center of the funnel.
To some extent, yes. A funnel cloud is the visible portion of a tornado. However, not all funnel clouds are tornadoes. If the winds associated with a funnel cloud do not reach the ground then it is not a tornado. Conversely, if the winds do reach the ground the term funnel cloud is not usually used, and the event is simply called a tornado.
A tornado has actually touched down on the ground - a funnel cloud is a spinning cloud that has not actually touched the ground.
In a sense, yes. But the term funnel cloud usually means a "tornado" that has not touched down.
A tornado that has touched the ground is called a funnel cloud.