China Meteorological Bureau classifies typhoon warning signals into four levels: blue, yellow, orange and red, but some provinces and cities classify them according to their own characteristics. Red warning signal refers to the coastal or land average wind force 12 or gust 14 that may be or has been affected by tropical cyclones within 6 hours and may continue. In the Regulations on Typhoon Red Warning and Prevention, the government and relevant departments should do a good job in typhoon emergency and rescue according to their duties; Stop assembly, class, business.

Therefore, in general, during the red typhoon warning period, people need to stay at home or in a safe place and avoid going out to avoid being hurt by strong winds, heavy rains and other disasters caused by typhoons. During this period, enterprises and institutions usually stop working to ensure the safety of employees.

Typhoon red warning signal is released as follows:

1, Wenzhou Typhoon red warning signal

In August 2007, Wenzhou Meteorological Observatory upgraded the orange warning signals of typhoons Pingyang, Cangnan, Wencheng and Taishun to Typhoon red warning signal at 00: 15, and kept the orange warning signals of typhoons Yueqing, Yongjia, Dongtou, Ruian, Lucheng, Longwan and Ouhai. Affected by the periphery of typhoon "Shengpa", the east wind of the coastal sea surface is 9~ 1 1, and continues to increase to10 ~12; There are strong winds of 7~9 and 8~ 10 in the inland and eastern coastal areas respectively. There is heavy rain, local heavy rain and heavy rain in some areas.

2. Typhoon red warning signal in Yuhuan County

On August 5th, 2005, Yuhuan Meteorological Observatory released Typhoon red warning signal: No.9 Typhoon Mai Sha, 17, the center of which is located on the sea about 200 kilometers southeast of our county, that is, 27.0 degrees north latitude and 22.6 degrees east longitude, with a central pressure of 950 hectopascals, and the maximum wind force near the center is above 12. The typhoon center is moving to the northwest at a speed of about 15~20 kilometers per hour, and will land on the coast of Taizhou in the second half of the night. The most likely thing is to make a frontal attack on the nearby landing counties.

The above content reference: Baidu Encyclopedia-Typhoon red warning signal