The 9-magnitude tornado in Wuhan has killed 8 people and injured 230 others. Why are tornadoes terrible?

Tornado is an upright hollow tube between the bottom of vertical cloud system and the underlying surface, and rotating airflow is a disastrous weather phenomenon at local scale.

Tornado is a rare local small-scale sudden strong convective weather, which is a strong small-scale air vortex caused by air convection movement under strong and unstable weather conditions.

From the evening of 20021May 14 to the night, with the large-scale outbreak of strong convection in the Yangtze River basin in China. Among them, the Zhashan area in caidian district, Wuhan, Hubei Province was seriously affected, and a 9-magnitude tornado appeared in Junshan area of Wuhan Economic Development Zone.

According to related reports, this tornado appeared in Caidian, Wuhan, and it was extremely destructive. Not only trees and uprooted houses collapse, cars roll over and hanging towers bend, but also some collapsed houses show a kind of crushing damage, which is the degree of damage that a powerful tornado will bring.

At present, the tornado in Caidian, Wuhan has caused 8 deaths and 230 injuries. 3568 people were affected by the disaster, and 1 197 people were urgently relocated, 86 houses of 28 households collapsed, and 400 houses of 130 households were seriously damaged.

This kind of damage is only a 9-level tornado, and many people say it is not a 9-level tornado. How destructive is that category 9 tornado?

Tornadoes have occurred in most cities in China, mainly in Jiangsu, Guangdong and other regions. Different levels of tornadoes have different hazards and different protection.

Wuhan 9 tornado has a wind speed of 23.9 meters per second. The destructive power is relatively strong.

Wang Li, director of Wuhan Meteorological Bureau, said in an interview that after the tornado, you must stay away from the doors, windows and external walls of your home and hide in the room opposite the tornado as much as possible. When the house collapses, the power supply should be cut off in time to prevent electric shock or fire.

When the tornado is outdoors, you should choose to lie low on the nearby ground and stay away from the tree poles to avoid being caught or electrocuted. Cars have little resistance to tornadoes. If you encounter a tornado while driving, never take shelter from the rain in the car. You should leave the car immediately and take shelter in low-lying areas.