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There are two main factors.
First, moisture in the air condenses as a result of decompression inside a tornado, producing the visible funnel cloud.
Second, a tornado's winds lift dirt and debris into the air, forming a debris cloud or dust whirl
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Why do tornadoes happen in Australia?
Tornadoes can happen anywhere - they're usually formed from severe thunderstorms.
How often do tornadoes happen in California?
On averages there are 11 tornadoes in California a year.
Do tornadoes happen in Phoenix?
Yes. The Phoenix area has had a few weak tornadoes.
What clouds appear when tornadoes occur?
Tornadoes typically form within cumulonimbus clouds, which are large and vertically developed clouds associated with thunderstorms. These clouds can have a distinct anvil shape and may exhibit features such as a rotating updraft known as a mesocyclone. However, tornadoes themselves are not visible until they make contact with the ground, at which point they can pick up debris and dust, creating a visible funnel cloud.
When do tornadoes mostly happen at?
Tornadoes happen mostly during the spring and early summer and during the later afternoon or early evening.
Are there such things as Blue Tornadoes?
No their are no such things as blue tornadoes only GOD can make that happen
Where can tornadoes happen?
Tornadoes can happen in any place that gets thunderstorms.
Why do tornadoes happen in Miami?
Tornadoes happen in Miami for the same reason they happen anywhere else. See the related question for how tornadoes form in general.
Why tornadoes don't happen in Ottawa?
Tornadoes can happen in Ottawa. Canada does get tornadoes, though not as often as the U.S. due to its cooler climate.
Where in the world can tornadoes can happen?
Tornadoes can happen anywhere in the world except cold areas like Antarctica and the north pole. Tornadoes are mostly common in United States.
When do most tornadoes happen in the US?
Most tornadoes in the U.S. happen in spring and early summer.
Can tornadoes happen in the summer for 5 out of 10 years?
Tornadoes happen in the summer every year.
Why do tornadoes happen in Australia?
Tornadoes can happen anywhere - they're usually formed from severe thunderstorms.
Can tornadoes happen in the Philippines?
Yes. Tornadoes, including some significant ones, can and do happen the the Philippines.
Can tornadoes collide to make even bigger tornadoes?
It can happen, but it is rare. When tornadoes do merge it usually involves a large tornado absorbing a small one, so the size of the vortex will not be significantly influenced.
Are tornadoes visible from space?
No. Tornadoes descend from severe thunderstorms. The view from above is blocked by the parent storm.
When did Sicily Tornadoes happen?
Sicily Tornadoes happened in 1851.
