Dust Devil
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A dust devil, fully formed, is a funnel-like chimney through which hot air moves, both upwards and in a circle. As the hot air rises, it cools, loses its buoyancy and eventually ceases to rise. As it rises, it displaces air which descends outside the core of the vortex.
Aug 11, 2014 · Dust devils range in width from about 10 feet to 100 feet, according to the American Meteorological Society, with an average height of about 650 feet. They aren’t the same as...
A dust devil is a small, brief whirlwind that occurs when a land surface is heating rapidly. Learn about the causes, characteristics, and types of dust devils, and see how they differ from whirlwinds and dust storms.
What is a Dust Devil? A common wind phenomenon that occurs throughout much of the world, including Arizona, are dust devils. An example of a dust devil can be seen to the left. These dust-filled vortices, created by strong surface heating, are generally smaller and less intense than a tornado.
Learn about the formation, factors, duration, and dangers of dust devils, which are whirlwinds that occur during fair weather. Dust devils are harmless most of the time, but can be huge and threaten planes, paragliders, and skydivers.
May 20, 2017 · What causes dust devils? A dust devil is a small, rapidly rotating wind that is made visible by the dust and dirt it picks up.
Learn about the willy willy, a type of whirlwind that forms in hot and dry conditions. Find out how it differs from a tornado and what causes it to spin.
