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They don't have to be. Tornadoes that form under dry conditions may lack a funnel. Tornadoes usually have funnels because they pull in moist air from other parts of the parent thunderstorm. The pressure drop in the tornado produces a temperature drop, which in turn triggers condensation.
What else can I help you with?
Is the Seymour tornado a funnel 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.
When the tip of the funnel cloud touches the ground it becomes a?
tornado clouds
What do you call a tornado that does not touch the ground?
A tornado that does not touch the ground is a funnel cloud.
Is a funnel cloud a tornado?
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.
What is a name for a funnel cloud touching the ground?
A funnel cloud that touches the ground is commonly known as a tornado.
What is the relationship between a funnel cloud and a tornado?
A funnel cloud is a developing tornado that has not reached the ground.
How is a tornado different from a funnel cloud?
A funnel cloud is like a tornado only it does not reach the ground.
Where is the eye of the tornado?
The "eye" of a tornado is at the center of the funnel.
A tornado starts out as a what?
A tornado starts out as a funnel cloud.
Is funnel cloud a nickname for tornado?
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.
Is a tornado a funnel cloud?
In a sense, yes. But the term funnel cloud usually means a "tornado" that has not touched down.
What does a tornado look like without the funnel?
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.
