Tornado [1] or woven Arnedo [2] (English: tornado) or tornado (elephant) is a storm caused by the rotation of the air. Can occur in various forms. The most common style is characteristic cone. By the end of the cone pointing down to the ground. Tornadoes can cause damage even higher. The wind speed can be as high as 500 km / h (300 mi / h), which caused the collapse of the building , although most tornadoes occur in the United States. Tornadoes can occur on all continents and in many countries, including Japan, was about 20 times Contents [hide] 1 Source of words (etymology) 2. Patterns of 3 Cause of 4 According to the source of (Etymology) [edit] borrowed from English as "tornado", which probably derives from the word tronada from Spanish, meaning thunderstorms form of birth [edit] tornadoes occur from the heat and wind. cool to meet and form a whirlwind. And when the wind is not constant. Make one end down to touch the ground, causing a tornado. The most tornadoes occur in the United States. The terrain can cause hot air and cold collision area plains tornado into the level is destroyed and wind speed divided by F0 - F5 by F0 is the tornado that weak real and F5, a tornado is. extreme level classification of tornadoes is based Fujita scale (Fujita scale), which sets out the storm, each class has a strong following wind speeds 64-116 mph storm F0 F1 storm wind speeds 117-180 mph storm. F2 wind speeds 181-253 mph wind speeds 254-332 mph storm F3 F4 storm winds of 333-418 kilometers per hour, the storm F5 wind speeds 419-512 mph from the survey showed that every storm. Tornado 1,000 times the level F0 approximately 389 times, the F1 approximately 356 times, the F2 approximately 194 times, the F3 of about 49 times, the F4 approximately 11 times and F5 of approximately 1 times the strength of the storm. As a result, the size and the dissolution of the storm with hurricane-level F0-F1 may have a diameter of up to 100 meters, and moved a few kilometers to disintegrate while the storm F5 may have a diameter of more than 1,600 meters and moving. the possibility of more than 100 kilometers before it decays. The higher the level, the storm will cause a storm is big and slow decay with the March 18, 1925 in the United States. Tornadoes concurrent 9-ball is F2 2 balls, F3 and 4 children, F4 2 balls and F5 1 ball moving landslides, Missouri, Illinois, Indiana, Kentucky, Tennessee, Alabama and Kansas have. the death toll to more than 747 people, of whom only a single ball that F5 storm. Killing people to 695 people, the death toll from the storm more than 8 children together only 50 people, making it the storm F5 tornado occurred, with the most deaths in US history. Damage to life and property is worth more than 1862 million, compared to the US dollar causes [edit] due to a group of floating through the air is warmer than the air is cooler than it causes. Of air circulation in the county limits and possibilities of the wind speed near the center. Rotate the fastest vessels and cause the air. Screw set high up in the sky. Next to the outer edge of the speed of rotation is gradually slowing down, but nevertheless the outer edge of it is strong enough to blow out the house to break away easily tornado formed by hot air and cold air meet. and formation of a whirlwind, and when the wind is not constant. Make one end down to touch the ground caused by tornadoes, most tornadoes occur in the United States because of the terrain. Can cause hot air and cool air collision. And larger, then smaller.
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