What is a typhoon like?
Typhoon is a strong cyclone vortex with warm core structure that occurs on the surface of tropical or subtropical ocean, and it is a powerful and profound tropical weather system. The air pressure in the center of the typhoon is very low, and there is obvious air flow at the lower level to the center, and the air flow at the upper level mainly flows out. Typhoons are divided into strong and weak in different parts of the world.
Traditionally, tropical cyclones that occur in the northwest Pacific Ocean and the South China Sea, and the maximum wind force near the center is 8 or above, are called typhoons. Meteorologically, tropical cyclones that occur in the northwest Pacific Ocean and the South China Sea, and the maximum wind force near the center reaches 12 or above, are called typhoons; Hurricanes with the same wind intensity appeared in the eastern North Pacific and the Atlantic Ocean.
Introduction to the structure of typhoon;
1, typhoon eye area
In the area where the typhoon eye passes, the wind speed will decrease rapidly or suddenly become calm, and the rainstorm will suddenly stop, which may last for about 20 minutes to 1 hour. People often mistakenly think that the typhoon has passed, but it is actually in the eyes of the typhoon.
2. Cloud wall area
It is an annular cloud belt with strong convection outside the eye of the typhoon, also known as the eye wall of the typhoon. Typhoon cloud wall area is tens of kilometers wide and tens of kilometers high, which is one of the main areas that cause typhoon rainstorm. The strongest wind above 12 and the wild waves above 10 meter formed by typhoon mainly occur here, and there will be tornadoes, lightning and thunderstorms.
3. Spiral rain belt area
It is the spiral cloud and rain belt area outside the cloud wall, just outside the typhoon cloud wall. It is tens to hundreds of kilometers wide and several meters long in Qian Qian, and the area it passes through will bring showers and windy weather.
Baidu Encyclopedia-Typhoon