No. Depending on the way the light hits the tornado and the color of the dust a it may pick up a tornado can also be black, white, brown or red.
No. Many tornadoes form in a rain-free portion of their parent thunderstorms. Some tornadoes form with low-precipitation supercells, which produce little or no rain.
No. While most tornadoes rotate in a direction that matches earth's (clockwise in the northern hemisphere and counterclockwise in the southern), a small percentage go against this. The origin of the spin in tornadoes is not directly related to earth's rotation. Most tornadoes also move in an easterly direction, but not always.
Not all mesocyclones produce tornadoes; however, they are often associated with tornado formation. The presence of a mesocyclone is a key indicator for meteorologists to monitor for tornado development.
Yes, tornadoes do occur in the UK, but they are relatively rare compared to other parts of the world, like the United States. The UK experiences about 30-50 tornadoes per year, mostly weak and short-lived.
Tornadoes always happen during thunderstorms. They cannot occur without them.
Big tornadoes are usually strong, but not always. A large, poorly organized tornado is not likely to be very strong. Some tornadoes even weaken as they expand.
No. Tornadoes are fairly rare in California and they are almost always weak. That said, a few tornadoes have occurred in the LA area.
All tornadoes are dangerous. Wedge tornadoes are usually stronger and thus more dangerous than smaller tornadoes, though this is not always the case.
Generally stronger tornadoes last longer, though this is not always they case.
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Tornadoes nearly always spin counterclockwise if they are in the northern hemisphere and clockwise if they are in the southern hemisphere.
Take cover...and fast. Not sure about your question. Tornadoes will be tornadoes. As I said before take cover. I've always been taught to get into a closet. Or get into a bathtub with a mattress on top of you.
Usually, but not always. A large tornado can certainly damage a large area. Larger tornadoes also tend to be stronger as well, but this is not always the case.
Tornadoes generally don't have a spiral shape. But the winds in and near a tornado always move in a spiral pattern.
No. Tornadoes happen at all times of the year. Spring and summer are just when they are most common.
Arizona and Utah have warm climates and don't see tornadoes very often. The tornadoes that do affect those states are almost always weak.