What is the harm of typhoon eye?

The typhoon eye is harmless, and the area around the typhoon eye is the danger zone.

Typhoon is a large-scale rotating air mass with low central air pressure, and the surrounding air rotates rapidly counterclockwise. The low-altitude airflow flows to the low-pressure center while rotating. The faster the airflow, the greater the wind speed.

A circular area with an average diameter of about 40 kilometers in the center of a typhoon is usually called the eye of the typhoon. Because the air around the typhoon eye rotates too much, it is difficult for outside air to enter the central area of the typhoon under the action of centrifugal force, so the typhoon eye area is like an isolated pipeline surrounded by a cloud wall. The air inside hardly rotates and the wind is weak.

The air outside the eye area of typhoon rotates to the center of low pressure, carrying a lot of water vapor, which rises around the eye area because it is not easy to enter, forming a large gray-black bloated and towering cloud layer and raining cats and dogs. There is a downdraft in the typhoon eye area, so the clouds disperse and twinkling stars can be seen at night.

As shown in the satellite image of Typhoon rammasun No.5 this year, the weather in typhoon eyes is usually sunny to partly cloudy, so it appears as a small black dot on the satellite cloud image. But after the typhoon eye moves, the weather will become extremely bad again.

In the eyes of typhoons, there are often many birds. These countless seabirds, which were blown to the typhoon eye by the typhoon airflow, found a "safe haven" and sometimes flew far away with the typhoon. ?

Although the weather is fine in the center of the typhoon, the waves on the sea are very big. This is because the air pressure in the center of the typhoon is particularly low compared with its surroundings. Therefore, where the typhoon center lands, it will often set off high waves and cause great damage.

Extended data:

Typhoon prevention:

1. According to the possible impacts of typhoons, the Meteorological Observatory issues forecasts to the public in three forms: news, warning and emergency warning. At the same time, according to the possible impact of typhoons, the blue, yellow, orange and red typhoon warning signals will be released to the society from light to heavy. We should pay close attention to the media reports about typhoons and take preventive measures in time.

2. Before the typhoon comes, flashlights, radios, food, drinking water and commonly used medicines should be prepared for emergency use.

3. Move outdoor animals, plants and other items indoors, especially the sundries on the roof; Things that are easily blown by the wind outdoors should be reinforced.

4, close the doors and windows, check whether the doors and windows are firm; Take down the hanging things; Check whether the circuit, fire fighting, gas and other facilities are safe.

5. People living in low-lying areas and dangerous houses should be transferred to safe houses in time.

6. Don't travel to the area where the typhoon passes, and don't go swimming or sailing on the beach during the typhoon.

Phoenix. Com- The reporter explained why the "eyes of typhoon" are calm.