What kinds of typhoon warning signals are there?

Typhoon warning signal is an early warning signal used by relevant departments to issue typhoon disaster warning according to relevant laws and regulations. Typhoon warning signals are divided into four levels, which are represented by blue, yellow, orange and red respectively. However, there is a unique warning signal in Guangdong Province, that is, the white warning signal.

Typhoon warning signal is an early warning signal used by relevant departments to issue typhoon disaster warning according to relevant laws and regulations. On August 16, 2004, China Meteorological Bureau issued "Trial Measures for Issuing Early Warning Signals of Sudden Meteorological Disasters", in which typhoon early warning signals are divided into four levels: blue, yellow, orange and red, but some provinces and cities classify them according to their own characteristics. Guangdong province has its own unique white warning signal.

Blue warning signal

Standard: it may be or has been affected by tropical cyclones within 24 hours, and the average wind force along the coast or land is above 6, or the gust is above 8 and may continue.

Defense guide:

1. The government and relevant departments shall prepare for typhoon according to their duties;

2. Stop outdoor collective activities and dangerous outdoor operations such as high altitude;

3. Take active measures for water operations and passing ships in relevant waters, such as returning to Hong Kong to avoid the wind or detour;

4. Reinforce doors and windows, hoardings, scaffolding, billboards and other structures that are easily blown by the wind. And cut off the dangerous outdoor power supply.

Yellow warning signal

Standard: It may be or has been affected by tropical cyclones within 24 hours, the average wind force along the coast or land is above 8, or the gust is above 10 and may continue.

Defense guide:

1. The government and relevant departments shall prepare for typhoon emergency according to their duties;

2. Stop large-scale indoor and outdoor gatherings and outdoor dangerous operations such as high altitude;

3. Take active measures for water operations and passing ships in relevant waters, strengthen port facilities, and prevent ships from anchoring, grounding and collision;

4. Reinforce or dismantle structures that are easily blown by the wind. Personnel should not go out at will, ensure that the elderly and children stay in the safest place at home, and the dangerous house personnel will be transferred in time.

Orange signal warning signal

Standard: 12 hours may be or has been affected by tropical cyclones, the average coastal or land wind force is above 10, or the gust is above 12 and may continue.

Defense guide:

1. The government and relevant departments should do a good job in typhoon prevention and emergency rescue according to their duties;

2. Stop large-scale indoor and outdoor gatherings, suspend classes or business (except for special industries);

3. Water operations and passing ships in the relevant waters should return to Hong Kong to take shelter from the wind and strengthen port facilities to prevent ships from anchoring, grounding and collision;

4. When strengthening or dismantling structures that are easily blown by the wind, personnel should stay in windproof and safe places as far as possible. When the typhoon center passes by, the wind will decrease or stay still for a while. Remember that the strong wind will blow suddenly, and you should continue to stay in a safe place to avoid the wind, and the people in danger should be transferred in time;

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

Red warning signal:

Standard: It may be or has been affected by tropical cyclones within 6 hours, and the average coastal or land wind force 12 or gust 14 or above may continue.

Defense guide:

1. The government and relevant departments should do a good job in typhoon emergency and emergency 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.

White warning signal:

The Unique Signal of Guangdong Province

Standard: Affected by typhoon within 48 hours.

Defense guide:

1. Enter the state of typhoon concern and be alert to the local impact of typhoon.

2. Pay attention to the latest situation of typhoon through meteorological information dissemination channels.