Such a storm is called a tornado.
A wall cloud, which is followed by a funnel cloud.
Funnel cloud
funnel
A tornado.
No. A tornado is a violently rotating column of air extending from the base of a thunderstorm to the ground. A tornado is often, but not always made visible by a funnel cloud. But the tornado is not the cloud itself.
A tornado is often visible as a funnel cloud.
A tornado.
A wall cloud, which is followed by a funnel cloud.
A large, rotating tropical storm in the Pacific Ocean would be a typhoon, but typhoons to not have funnel clouds. A funnel cloud anywhere is simply a funnel cloud.
Funnel cloud
Funnel clouds are associated with tornadoes.
A tornado
funnel
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 clouds
A tornado.
To a degree. A tornado is often made visible by a cloud known as a condensation funnel or funnel cloud. The tornado itself is not a cloud, however, but a violent rotating windstorm. The condensation funnel is sometimes absent in a tornado.