Сonsequences of a tornado in America

by the most interesting natural phenomena for us and chose a tornado. Since the most destructive tornadoes most often occur in the United States, it was this country that became the object of our research. Frequent tornadoes in the United States are caused by the collision of air masses with very different temperatures. Warm humid air from the Gulf of Mexico collides in the United States with cold air from Canada and dry air from the Rocky Mountains. Under such conditions, a large number of thunderstorms occur, which carry the threat of a tornado. The most destructive and deadly tornadoes form under enormous cumulonimbus clouds. These clouds often bring heavy hail, squall winds, heavy thunderstorms and showers, and tornadoes.
Although tornadoes in the United States are found in various regions - both in the lowland regions of America, and on the east coast of the United States and on the Florida Peninsula, the most frequent and strong tornadoes occur in the so-called Tornado Alley, the conditional boundaries of which cover the 13 central states of the country. In the cities of these states, there are special sirens warning of the appearance of a tornado, and even during construction, houses are equipped with anti-tornado shelters.

Это изображение, автор: Неизвестный автор, лицензия: CC BY-SA

topic is very relevant,since tornadoes do not occur so often in Russia.And we are interested in learning more this natural phenomenon.We also hope that we can better dwell upon this problem.

Это изображение, автор: Неизвестный автор, лицензия: CC BY-SA

during our research:
1 Learn the nature of tornadoes.
2 Can tornadoes be predicted?
3 Determine the consequences of a tornado.
4 Actions of Americans during a tornado.
5 The impact of tornadoes on consciousness of Americans.
6 To study life of Americans after tornadoes.
7 To make informative brochure about the investigate.

of air that extends from a thunderstorm to the ground. It's often portended by a dark, greenish sky. Black storm clouds gather. Baseball-size hail may fall. A funnel suddenly appears, as though descending from a cloud. The funnel hits the ground and roars forward with a sound like that of a freight train approaching. The tornado tears up everything in its path. The most violent tornadoes come from supercells, large thunderstorms that have winds already in rotation. About one in a thousand storms becomes a supercell, and one in five or six supercells spawns off a tornado.
Tornadoes can occur at any time of year, but they are more common during a distinct season that begins in early spring for the states along the Gulf of Mexico. The season follows the jet stream—as it swings farther north, so does tornado activity. May generally has more tornadoes than any other month, but April's twisters are sometimes more violent. Farther north, tornadoes tend to be more common later in summer.

tornadoes. However, there are signs that could possibly indicate a tornado that’s already formed or in the process of forming.
First of all, the atmospheric conditions need to be just right for a supercell to form. Warm moist air, cool dry air, and instability is necessary for a supercell to occur. Once supercells start to rotate and form a mesocyclone, there are a couple of things that can tell you if there’s a chance of a tornado or one is forming.
On radar, a classic way of telling is if there’s a “hook echo”. On radar, you would see the main thunderstorm and an appendage that seems to be in the shape of a hook. If you see something like that on radar and you’re under a tornado warning, head to shelter if you haven’t already. Hook echoes are big indicators that the supercell has great rotation. Some hooks are more defined than others but treat them all a life-threatening situation.

deaths and 1,500 injuries are associated with tornadoes each year. According to the National Oceanic Atmospheric Administration, most tornado deaths are caused by people not following instructions on what to do the right way. They also mention that some people are not even warned that a tornadic storm is coming, while others get a warning but do not believe that a tornado will hit their area. In 2012, 68 people were killed by tornadoes in the United States. Kentucky had the most fatalities, 22. Kentucky was followed by Indiana, Illinois, Missouri and Oklahoma , Ohio , Alabama and Tennessee , and Florida and Kansas.
Over 39 percent of all tornado-related deaths and many injuries come from residents of mobile homes. It is a widespread myth that tornadoes are "attracted" to mobile home parks and cause the most fatalities there because they hit there the most. This is not true. However, mobile homes do often have poor construction and do not provide adequate protection during a tornado event. An example to confirm this occurred in April 1991, when a very powerful tornado struck the town of Andover, Kansas. When the town was hit, eighty-four homes and fourteen businesses were destroyed by the tornado, but with no fatalities and only minor injuries. After the tornado hit Andover, it swept through a mobile home park consisting of 223 trailers. The park did have a tornado shelter, to which over 200 residents fled and survived without injuries. Others that did not take shelter in the tornado shelter stayed in their mobile homes, and thirteen of them were killed by the tornado.

when a tornado strikes. Acting quickly is key to staying safe and minimizing impacts.
Stay Weather-Ready: Continue to listen to local news or a weather Radio to stay updated about tornado watches and warnings.
At Your House: If you are in a tornado warning, go to your basement, safe room, or an interior room away from windows. Don't forget pets if time allows.
At Your Workplace or School: Follow your tornado drill and proceed to your tornado shelter location quickly and calmly. Stay away from windows and do not go to large open rooms such as cafeterias, gymnasiums, or auditoriums.
Outside: Seek shelter inside a sturdy building immediately if a tornado is approaching. Sheds and storage facilities are not safe. Neither is a mobile home or tent. If you have time, get to a safe building.
In a vehicle: Being in a vehicle during a tornado is not safe. The best course of action is to drive to the closest shelter. If you are unable to make it to a safe shelter, either get down in your car and cover your head or abandon your car and seek shelter in a low-lying area such as a ditch or ravine.

areas of frequent tornadoes should be constantly on the alert. As their lives are almost always threatened by this natural disaster. These people should be prepared for the fact that they may lose their homes, cars, or worse, become victims of tornadoes themselves. This leaves a special imprint on consciousness and, in general, on their lives.

most often remain alive, but what about material losses? If a house gets in the way even with a weak tornado, it will still suffer a lot and major repairs will be required, let alone what happens to cars or other similar vehicles that were caught in a tornado. So, the Tornado suffers huge material losses. Of course, the government will help the victims, but you should not count on it.

is difficult to predict. Every year, the US economy suffers huge losses due to destructive tornadoes. Also, tornadoes in the United States have been repeatedly recognized as the most dangerous natural phenomenon due to their frequent occurrence and destructive power.