Either the funnel cloud or the violent, rotating winds associated with it must reach the ground in order to be classified as a tornado.
Neither. A funnel cloud that touches the ground is a tornado. A thunderhead is the sort of cloud that develops into a thunderstorm, and a supercell is the kind of thunderstorm most likely to produce a 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.
A tornado.
A tornado that touches the ground is simply a tornado. Before it touches down it is called a funnel cloud.
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.
The ground.
It forms a funnel cloud.
tornado clouds
A wall cloud will form and the cloud might build up a funnel!
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.
A tornado has actually touched down on the ground - a funnel cloud is a spinning cloud that has not actually touched the ground.
Yes. A tornado is often visible as a funnel cloud as it develops.
The funnel cloud turned into a tornado.
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.