Reference Terms
from Wikipedia, the free encyclopedia

Dust devil

A dust devil or whirlwind is either a large rotating updraft, anywhere from 1000 meters high or more and tens of meters in diameter, to a small vortex a few meters high.

In Australia, they are commonly known as willy willies.

Note:   The above text is excerpted from the Wikipedia article "Dust devil", which has been released under the GNU Free Documentation License.
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May 23, 2017

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