The red warning of typhoon indicates the destructive power of typhoon. Can we still go shopping?

It is extremely destructive. For your personal safety, please don't go to the streets.

Typhoon warning signal is divided into four levels according to approaching time and intensity, which are represented by blue, yellow, orange and red respectively.

Red is the highest level.

Red typhoon warning icon

The criteria for typhoon red warning signal are: it may be or has been affected by tropical cyclones within 6 hours, the average wind force along the coast or land is above 12, or the gust is above 14 and may continue.

12 What is the concept of wind power?

According to the Regulations on Typhoon Business and Service issued by China Meteorological Bureau in 20001,typhoons above 12 were added to 17, and the typhoon scale was adopted. (Note: This practice has not been adopted by the meteorological department)

Typhoon 12 is set at 32.7~36.9 m/s, and the higher the magnitude, the faster the speed.

For example, we usually drive 40km/h on the road. If we convert the speed of typhoon 12, it is117.72 ~132.84 km/h, which is about three times the usual speed. When the typhoon reaches this speed, it is easy to blow down buildings and houses. We all know the danger of high-altitude parabolic, high-altitude parabolic and wind blessing. If they are hit, they will do great harm.

Trees uprooted by typhoons

Over the years, typhoons have caused serious loss of life and property:

Typhoon "Rainbow" on 20 15 (average wind force 15) caused disasters in 9 cities and 42 counties, including Zhanjiang, Guangdong Province, with a cumulative affected population of 3.534 million, with the number of victims rising to 18, 4 missing, emergency relocation and resettlement 170400, and the affected area of crops of 2000.

By 8: 00 on September 6th, 20 16, Typhoon Moranti (the wind force in Xiamen will increase to 8-9, and the gust 10 will continue to increase to 9- 10 at night, and the gust 14) has caused disasters in Fujian. Twenty-eight people died, 0/5 people were missing, 84/0/9 thousand hectares of crops were affected, 80/0/3 thousand people were transferred, and the direct economic loss was 2/0/0.73 million yuan.

20 18 typhoon mangosteen (the maximum wind force near the center 15 (50m/s), the lowest air pressure in the center of 940 hectopascals, the radius of the seventh wind circle of 400-550km, the radius of the tenth wind circle of 150-270km and the radius of the twelfth wind circle of 60-80km).

Therefore, when the typhoon red warning is issued, we should do a good job of prevention, and don't go to the streets unless there is something particularly important.

Defense guidelines given by the Meteorological Bureau:

1, the government and relevant departments should do a good job in typhoon emergency and rescue according to their duties;

2. Stop assembly, suspend classes and suspend business (except for special industries);

3. Ships returning to Hong Kong to avoid the wind should take active measures according to the situation, and properly arrange personnel to stay behind or move to safety;

4. When strengthening or dismantling structures that are easily blown by the wind, personnel should stay in windproof and safe places. When the typhoon center passes by, the wind will decrease or stay still for a while. Remember that the wind will suddenly blow, they should continue to stay in a safe place to avoid the wind, and dangerous people should move in time;

5. Relevant areas should pay attention to prevent flash floods and geological disasters that may be caused by heavy precipitation.