Dust devil. This is a type of small,weak tornado that commonly occurs in hot,dry areas. It is usually formed when winds are deflected by terrain features into a rotating column. If updrafts caused by heating of the surface are also present,then a dust devil can form. The updraft and rotation pull dust from the surface,making the funnel visible. A dust devil is not as destructive or large as a tornado,and poses little threat | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Haagner, Clem |
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