China's typhoon warning signals are divided into four levels, from low to high, blue, yellow, orange and red.

1. Blue Typhoon Warning Signal The blue typhoon warning signal is the lowest level warning signal, indicating that a typhoon or severe tropical storm may affect the warning area, but will have little impact on public life and property.

When a blue warning signal is issued, the public needs to pay close attention to typhoon dynamics and make precautionary preparations, such as checking whether household items are securely fastened, etc.

2. Yellow typhoon warning signal The yellow typhoon warning signal is one level higher than the blue signal, indicating that typhoons or severe tropical storms will have a certain impact on public life and property, and corresponding preventive measures need to be taken.

When a yellow warning signal is issued, the public needs to be more vigilant, avoid going out, avoid parking outdoors, and ensure the safety of the living environment.

3. Orange typhoon warning signal The orange typhoon warning signal is one level higher than the yellow signal, indicating that the impact of typhoon or severe tropical storm on public life and property is relatively serious.

When an orange warning signal is issued, the public needs to take more proactive measures, such as evacuating dangerous areas, closing doors and windows, and securing items.

4. Red typhoon warning signal The red typhoon warning signal is the highest level warning signal, indicating the threat to public life and property from typhoons or severe tropical storms.

Preventive measures for typhoons: (1) Based on the possible impact of typhoons, the meteorological department often uses three forms of "news", "warnings" and "emergency warnings" to release the forecast to the public. The public should pay close attention to media reports on typhoons.

, take preventive measures in time.

(2) Before the typhoon approaches, you should prepare flashlights, radios, food and drinking water, and commonly used medicines in case of emergency.

(3) Close the doors and windows, check whether the doors and windows are strong, remove hanging objects, and check whether the circuit, gas, and fire facilities are safe.

(4) Move animals and other items kept outdoors indoors. In particular, debris on the roof, flower pots outside the windows, etc. must be moved indoors. Outdoor items that are easily blown must be reinforced.

(5) Do not travel, swim or sail in areas where typhoons pass.

(6) Outdoor billboards, temporary work sheds, temporary buildings, and construction scaffolding should be reinforced, and street trees and drainage pipe networks in the city should be temporarily reinforced and cleaned.

(7) People living in low-lying areas and dilapidated buildings in urban and rural areas must be relocated promptly.

(8) Heavy rains brought by typhoons can easily cause floods, landslides, debris flows and other disasters. Relevant schools, industrial and mining enterprises, mountainside roads, etc. must strengthen prevention.

If necessary, measures such as suspending schools, suspending factories, and closing roads will be adopted.

(9) When a typhoon approaches, no one is allowed to walk along the river.