Tornadoes in the US
• Tornadoes in the United States
Tornado (App. "Whirlwind") is perhaps the most unpredictable force of nature that can destroy everything in its path. Tornadoes occur under certain atmospheric conditions, and looks like a trunk diameter of tens to hundreds of meters, rotating at high speed and draws in all that can be carried out.
Although tornadoes can occur anywhere in the world, they often occur in the United States. As a result of recent tornadoes that struck the state of Indiana, Kentucky and Ohio, were killed already 28 people.
Tornado strength is measured on a scale of Fujita-Pearson, developed by Dr. Theodore Fujita to classify tornadoes based on the extent of the wind damage.
The word "tornado" comes from the Spanish language and refers to the rotation. Tornado occurs under certain atmospheric conditions, in a low pressure, during a severe storm.
Tornado typically occurs in a thundercloud and stretches down, often to the surface of the earth, in a trunk diameter of from several tens to hundreds of meters:
The most common tornadoes occur in the United States. The second "most popular" region, where there are tornadoes, is Europe. As a result of recent tornadoes that struck America, were killed already 28 people. The most badly damaged town of Harrisburg, Illinois. More recently, the site was home, and February 29, 2012 it completely destroyed the tornado.
The average diameter of the funnel of a tornado 300-400 meters although may be up to several kilometers.
Branson, Missouri, February 29, 2012.
Inside the Tornado is a region of highly rarefied air, and closed gas-filled or air objects, including buildings and buildings due to the pressure difference can explode from within.
The destroyed church in Illinois, March 1, 2012.
The power of tornado is enormous. It is estimated that the energy of a tornado diameter of 2 km and an average wind speed of 70 m / s comparable to the energy of the atomic bomb that exploded in the United States during the test under the name "Trinity" in 1945.
Tornado in Oklahoma:
In 2011, victims of the tornadoes were about 550 people, which was the highest level since 1936.
Tornado in Kansas:
Let us return to the last tornado in the United States, which destroyed hundreds of homes in several states, February 29, 2012.
After the passage of a tornado US flimsy houses were turned here in these ruins. Branson, Missouri, February 29, 2012.
However, it is maintained and brick building, Illinois, February 29, 2012.
The city of Harrisburg, Illinois, February 29, 2012. The winds hit the city at speeds up to 320 km / h!
Kentucky, February 29, 2012.
Most of the dead residents of the state have not heard the sirens warning of a tornado, because sleeping. In this photo from the top you can see how a tornado went through the city Harrisburg 29 February 2012.
A ruined church, Illinois, February 29, 2012.
All the southern United States there were more than 60 tornadoes, some of which reached 800 meters in diameter. According to witnesses, the tornado lifted into the air the whole houses, cars and heavy trucks. City of Harrisburg, Illinois, February 29, 2012.
Tornado F5 category (see. Table top). The Canadian province of Manitoba, 1997:
The reasons for the formation of tornadoes is still not understood. At the initial stage of formation of tornado of lightning cloud appears hanging in the air funnel which then "grows" to the ground.
When tornado ends, and the funnel tapers off from the ground surface gradually rising back into the cloud.
In Russia, the first mention of tornadoes occur as early as 1406.
"Silver rain". In 1940, in the village of Nizhny Novgorod region Meshchery the rain of silver coins. During a thunderstorm, it was blurred treasure with coins, and held a tornado picked up a coin into the air and dropped them near the village Meshchery.