tornado clouds
A tornado that does not touch the ground is a funnel cloud.
Not technically. It is the beginning of a tornado, but they are categorized differently. It is not considered a tornado until it reaches the ground with damaging winds.
A funnel cloud that touches the ground is commonly known as a tornado.
A funnel cloud is a developing tornado that has not reached the ground.
A funnel cloud is like a tornado only it does not reach the ground.
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.
In a sense, yes. But the term funnel cloud usually means a "tornado" that has not touched down.
Without a funnel, a tornado will likely appear as a whirling cloud of dust or debris. If there is not enough of that present, then the tornado will be invisible.
The Seymour, Texas, tornado of April 10, 1979 is a prime example of a tornado that is destined to be misjudged on the Fujita Scale. This spectacular funnel was probably capable of F4 damage, had it passed through a town. It produced only telephone pole and tree damage, and thus could be rated no higher than F2 damage. The Seymour tornado was in the same family as the devastatingWichita Falls, Texas tornado, which remains as of this writing, the most damaging in US history. Video of this tornado is used in the Fujita Scale segment of Tornado Video Classics II