A tornado in northern Birmingham, Alabama killed 1 person and injured 30 people. Why is it so lethal?

202165438+1On the evening of October 25th, a large tornado landed in the northern part of Alabama, USA. In the area where the tornado passed, houses were destroyed and power supply was interrupted. The tornado also killed 1 person and injured 30 people. The local police also blocked the areas most damaged by the tornado and began to clear road obstacles, searching for and resettling the injured and homeless. Moreover, according to American news media, northern Alabama is one of the areas where tornadoes frequently occur in the United States.

Tornado is a very powerful and violent weather phenomenon, which often occurs in temperate and tropical regions of the earth. Moreover, in spring and summer, tornadoes will appear frequently and have great destructive power. Tornadoes are formed because the water on the ground turns into steam and forms clouds. In the cloud, the temperature difference between the upper and lower is relatively large, so in the process of water vapor rising, it will shrink under the influence of cold air to form a funnel. In the process of water vapor contraction caused by cold, the surrounding air is unevenly distributed, resulting in a tornado.

The wind power of tornadoes can reach about 12, and tornadoes are usually accompanied by thunderstorms. Generally speaking, tornado is a cyclone phenomenon, which is funnel-shaped. Moreover, the tornado has a very fast wind speed and a very large diameter. Tornadoes last from a few minutes to tens of minutes. Everything on the ground was destroyed wherever the tornado went. Houses were badly damaged, roofs were overturned and trees were uprooted. Then the ground was littered with rubble and various sundries, and even the vehicles and telephone poles in the street were blown down by the wind. Some meteorologists say that the energy released by tornadoes in one hour is equivalent to the energy of eight Hiroshima atomic bombs, and tornadoes can cause millions of dollars in economic losses every year.

As an ordinary person, we should learn to protect ourselves in the face of such a bad weather phenomenon as tornado. The safest place is a concrete basement. The tornado will leave a long and narrow destruction area after it is swept away. When encountering a tornado, you should face it rationally, find ways to avoid it, and don't panic. When a tornado comes, try not to stay in the middle of buildings. Some small rooms and secret rooms are safer than some larger buildings. It is necessary to quickly determine the path of the tornado and find a low-lying place to escape. Because tornadoes always go straight ahead and don't turn, it is much safer to find a low-lying area perpendicular to the tornado path. Although a tornado is extremely powerful, it can roll up a big tree by the roots. However, running into the house near the big tree to escape can also resist the tornado. After all, trees have windproof function.