How and why tornadoes form？ What to do when encountering tornadoes？ What direction to escape and self-help skills？
How and why tornadoes form? What to do when encountering tornadoes? What direction to escape and self-help skills?
How is a tornado caused? How to save yourself when encountering a tornado? The reason for the formation of tornado is that the temperature difference between the upper and lower clouds is too large, resulting in a small vortex in which cold air drops and hot air rises; At this time, pieces of cotton-like white clouds appear in the air, which are called cumulus clouds. Then, cumulus clouds continue to develop in the maelstrom to form cumulonimbus clouds, and the latent heat inside the cumulonimbus clouds continues to heat up, thus generating a powerful airflow, which is called a tornado.
At about 5: 15pm on July 3rd, a sudden tornado hit kaiyuan city, Liaoning Province, with a wind speed of 23m/s (magnitude 9) nearby. The tornado was formed by Jingouzi Town, passed through Xingkai Street and Kaiyuan Economic Development Zone, and lasted for 15 minutes to the south, then weakened into a low pressure.
Tornadoes caused casualties, damaged houses and damaged power communication to varying degrees.
At present, preliminary statistics have caused 6 deaths and more than 120 injuries. The specific situation is being counted. On-site rescue is being carried out in an orderly manner.
How to save yourself when encountering a tornado? Sort out the escape skills when encountering a tornado, hoping to help more people!
What are the escape skills when encountering a tornado?
Understand the signs of tornadoes. First of all, there will be some natural phenomena before tornadoes appear, often accompanied by black clouds, cumulonimbus clouds and lightning and thunder. In addition, cold wind, strong wind, heavy rain and hail are signs of tornadoes. To get to a safe place quickly, tornadoes are very terrible. The bottom of black clouds forms a funnel shape, and the wind speed can exceed 70 meters per second, which can roll up the car and run into the air. Different from the typhoon, with the swirling updraft, the objects on the ground along the way are also rolled up, and the rolled-up objects smash the glass of the building, causing the air pressure in the rented house to change sharply and the roof will be overturned.
When we encounter a tornado, don’t panic. The following escape skills and precautions are to be remembered.
1. When people are outdoors, it is important to hide in a strong building made of reinforced concrete. Never hide in garages, prefabricated buildings and black wooden storage sheds.
2. When there are no buildings nearby, cover your head and neck with your hands and dive into ditches and depressions on the spot.
3. When people are indoors, close the windows and draw the curtains, and don’t get close to the wall; Never be in danger because you concentrate on tornadoes; Located in the middle of the first floor in a two-story building; Rooms and toilets without windows are relatively safe for people; You can also cover your head and neck with your hands in the bathtub or under the table.
Precautions: Once you notice a tornado approaching, you should immediately escape to a safe place.
How to save yourself when encountering a tornado?
1. Identify tornadoes accurately
Experts remind: Tornadoes occur in thunderstorms in summer and autumn, especially in the afternoon to dusk. When the roller cloud and funnel cloud were invented, it was a sign of a tornado, and it was usually accompanied by a hearty whistle! (10,000% of the time, because the speed at which the tornado began to move was annoying, it was careless. Don’t be busy making friends at this time!
2. How to run after escape
If you have enough time to escape, you must escape from the room. Be sure to stay away from dangerous houses and mobile homes, trees and telephone poles, and then retreat to the direction perpendicular to the movement of tornadoes (tornadoes usually don’t turn), and just hide in low-lying areas as a cover, and pay attention to cover your head.
3. Accurate practice indoors
When a tornado comes, if you can’t escape in the room, try to close some windows, but never close them all. The goal of this is to balance the pressure inside and outside the building. Just hide in the closet or basement, face the wall and hold your head down.
4. What should I do in the car?
Whether cars, bicycles or motorcycles are invented early, we must look at the vertical deviation from the wind belt. Otherwise, you should get off the bus immediately and find a suitable escape area around you (exaggerate again, pay attention to leaving trees and telephone poles). Don’t hide in or under the car, it is easy to be swept away.
5. What is the best place to avoid tornadoes?
A basements, bomb shelters, and the lowest floors of high-rise buildings that will not be swept away by the wind, flooded or blocked by equipment are the best places to avoid tornadoes.
B. If you are in a school, hospital, workshop or shopping center, you should avoid the indoor room or lobby closest to the ground. Stay away from places with glass or wide roofs in the surrounding environment.
C. When encountering a tornado in the open field, you can choose to lie down in low-lying places such as canals and river beds.
D. warning: don’t go to halls, stacks, and temporary buildings to avoid such open and unsafe occasions.
6, immediately leave the bridge, high ridge, coastal and dangerous houses, mobile homes. If there is no barrier around, you should lie flat in a low-lying place, but pay attention to waterproofing!
Remind everyone that it is important to save your life, but never hurry, prevent crowding, help each other, and save yourself in an orderly manner. If you have valuables to transfer, you are advised to abandon them and run away.