2006-12-20 12:17:07 · 8 answers · asked by mrweasel123 1 in Science & Mathematics ➔ Weather
What you saw is a dust devil. They usually take place in the middle of the day when the ground reaches it's maximum temperature. This heats the air up quickly, and since warm air rises, an updraft occurs. Horizontal winds can then collide with the updraft, and that causes it to spin around. The dust devil then picks up debris, and in your case, leaves. They are pretty weak and don't normally exceed 15 feet in diameter, but have been known to knock over cats and small dogs.
Have a great holiday season!
2006-12-21 08:06:11 · answer #1 · answered by Anonymous · 0⤊ 0⤋
It's called a dust devil. They are caused by the same thing that causes the big ones called tornado's. Warm air coming in contact with a colder air mass.
2006-12-21 06:40:53 · answer #2 · answered by Anonymous · 0⤊ 0⤋
It is called a "dust devil" or a dirt devil. It is usually a sign that a low pressure area is moving into your neighborhood.
2006-12-20 20:19:49 · answer #3 · answered by Randy G 7 · 0⤊ 0⤋
It's called a dust devil.
2006-12-20 20:24:15 · answer #4 · answered by Tom K 1 · 0⤊ 0⤋
just the shift in the wind cycle
2006-12-23 18:30:12 · answer #5 · answered by sugar_pie 3 · 0⤊ 1⤋
Dust devil
2006-12-20 20:25:08 · answer #6 · answered by DCON 2 · 0⤊ 0⤋
it is just wind moving in different directions
2006-12-20 20:24:13 · answer #7 · answered by Math Geek 2 · 0⤊ 1⤋
dust devil
2006-12-24 15:35:16 · answer #8 · answered by Anonymous · 0⤊ 0⤋