How to treat typhoon warning?

How to treat typhoon warning? Typhoon is a strong tropical cyclone produced on the surface of tropical ocean. The greater the wind speed of the typhoon, the greater the harm to us. So when the weather bureau detects a typhoon, it will issue an early warning for us to avoid. Let's talk about typhoon warning.

What do you think of typhoon warning? 1 1.t (white light signal) is a typhoon warning signal, indicating that there is a tropical cyclone within 800 kilometers from our city, which may affect our city within 48 hours. Typhoon no.1 for short.

Defensive measures: remind citizens and ships to pay attention to wind protection.

Second, (the light signal is white, green and white) is a strong wind signal, indicating that there is a tropical cyclone within 500 kilometers from our city, which may affect our city within 24 hours, and the wind can reach 6-7.

Referred to as typhoon prevention measures No.2: kindergartens are closed; The ship sheltered from the wind.

3. (The light signal is white, green and green) Gale signal means that there is a tropical cyclone within 200 kilometers of our city, which will affect our city within 12 hours, and the wind force can reach 8 or above. Typhoon no.3 for short.

Precautionary measures: the duty commanders of all relevant units are in their positions to prepare emergency measures; Organize rescue teams and prepare materials and equipment; Check water, electricity, communication and traffic engineering facilities; Warning in dangerous areas and evacuation of personnel and property;

Dangerous house alarm and household evacuation; Announce temporary shelters and evacuation routes and open all places; Suspension of classes in primary and secondary schools; Ships take shelter from the wind; Cut off neon lights and dangerous outdoor power supply.

4. (The light signal is green, green, green) is a strong wind enhancement signal, indicating that tropical cyclones will seriously affect our city, with an average wind force of more than 8 and a gust of 1 1, which is referred to as Typhoon No.4 for short.

Defensive measures: the leading members of the three defenses go to the headquarters for centralized command; The rescue team is in place; The ship takes protective measures.

5. (The light signal is red, green and red) is a hurricane signal, indicating that a tropical cyclone has landed near our city, with average wind force 10 and gust 12. Typhoon no.5 for short. The defensive measures are the same as those of Typhoon No.4..

Six, (the light signal is green and white) is the typhoon lifting signal, indicating that the tropical cyclone has turned halfway and no longer poses a threat to our city.

How to treat typhoon warning 2 and how to identify typhoon warning signals

1, blue warning: it may be affected by tropical depression within 24 hours, and the average wind force can reach above 6 or gust above 7; Or it has been affected by the tropical depression, with an average wind force of 6-7, or a gust of 7-8 and may continue.

2. Yellow warning: it may be affected by tropical storms within 24 hours, with an average wind force of more than 8 or a gust of more than 9; Or it has been affected by tropical storms, with an average wind force of 8 ~ 9, or a gust of 9 ~ 10 and may continue.

3. Orange warning: it may be affected by a strong tropical storm within 12 hours, and the average wind force may reach 10 or above, or the gust 1 1 above; Or have been affected by a strong tropical storm, the average wind force 10 ~ 1 1, or the gust112 may continue.

4. Red warning: It may or may have been affected by typhoon within 6 hours, and the average wind power may reach 12 or it has reached 12 and may continue.

5. White warning: it may be affected by tropical cyclones within 48 hours.

Is the typhoon dangerous?

Typhoon is a very destructive natural disaster. When typhoons and tropical storms strike at the same time, they are often accompanied by strong winds, heavy rains, huge waves and storm surges, and sometimes they cause tsunamis, so typhoons are very dangerous.

The severity and frequency of disasters caused by typhoons have attracted worldwide attention. Typhoons and tropical storms are extremely harmful and destructive. According to the report of the World Meteorological Organization, when typhoons and tropical storms hit.

The number of deaths caused by typhoons and tropical storms worldwide is about 20,000 to 30,000 each year, and the direct economic losses amount to billions of dollars. More than 70% of shipwrecks are related to typhoons and tropical storms, so people often call typhoons and strong tropical storms the number one "culprits" who cause shipwrecks.

The harm of typhoon

1, the disaster caused by strong wind.

All kinds of dilapidated houses, factories, sheds, fences, temporary buildings, projects under construction, municipal public facilities, amusement facilities, cranes, construction elevators, scaffolding, telephone poles, trees, billboards, iron towers, ships at sea and port facilities may be blown down (overturned) due to insufficient wind resistance.

Balcony, roof flowerpot, outdoor unit of air conditioner, awning, solar water heater, sundries on the roof, scattered articles, tools and building materials on the construction site are easily blown off by the wind, and window glass and curtain wall glass are blown off or blown off by strong wind, which may cause casualties.

2. Disaster caused by rainstorm.

When the typhoon is affected, it is often accompanied by heavy rain, even heavy rain or heavy rain. Rainstorms easily lead to floods, which cause villages, houses, ships, bridges and amusement facilities to be flooded or even destroyed, resulting in loss of life and property.

Heavy rain may lead to the collapse of water conservancy projects, causing serious danger. Heavy rain may also cause geological disasters such as landslides and mudslides, causing casualties.

3. Disaster caused by storm surge.

Storm surge is easy to damage seawalls, culverts and docks. The revetment and other facilities will cause the seawall to burst, the seawater will flow backward, and even people nearby may be washed away directly, causing casualties.

How to understand typhoon warning signal

Before the unified typhoon warning standard was promulgated by the state, the typhoon warning methods in different regions were different. In order to facilitate unified deployment, China Meteorological Bureau issued the Trial Measures for Issuing Early Warning Signals of Sudden Meteorological Disasters in 2004, in which typhoon early warning signals are divided into four levels: blue, yellow, orange and red. With the increase of eye-catching colors, the intensity and influence range of typhoons gradually expand.

The typhoon warning signal issued by the meteorological department is mainly aimed at the two stages of typhoon at sea and during landing. Among them, the blue warning indicates that it may or has been affected by the typhoon 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;

The yellow warning indicates that the typhoon may or has been affected within 24 hours, the average coastal or land wind force is above 8, or the gust is above 10 and may continue; The orange warning indicates that typhoon may or has been affected within 12 hours, and the average coastal or land wind force is above 10, or the gust is above 12 and may continue;

The highest level of red warning indicates that it may or has been affected by typhoon within 6 hours, and the average coastal or land wind force is above 12, or the gust is above 14 and may continue.

White warning is a unique warning signal in Guangdong and other regions. Guangdong Meteorological Bureau stipulates that in addition to the four-color warning stipulated by the state, the original white warning will continue to be used as an early warning signal, indicating that it may be affected by tropical cyclones within 48 hours.

In Hong Kong and Macau, typhoon warnings have been expressed by numbers ranging from 1 to 10 in the past few decades, and are customarily called "typhoon balls".

Typhoon warning in Hong Kong is divided into typhoon signals No.1, No.3, No.8, No.9 and No.10: No.1 (warning signal) indicates that there is typhoon activity within 800 kilometers from Hong Kong, which may affect Hong Kong in the future, so as to remind the public; When typhoon signal No.3 appears, the Education Department will ask kindergartens and other institutions to suspend classes, which is the most common storm signal in Hong Kong. In case of typhoon signal No.8 or above, it means that schools in Hong Kong are closed and most industries are closed.

Friends living inland may not understand the difference in typhoon intensity under different color warnings, but for friends living in coastal areas, typhoons under yellow and orange warnings give people completely different feelings.

The average wind force of the yellow warning is 8, which means that the wind speed has reached 17. 220。 7 m/s, at this wind speed, branches will be blown off, and the waves can be described as rough. People living in old houses may be able to stay indoors and hide, and the orange warning wind is 10, and the wind speed has reached 24. 528。 Four meters per second.

At this time, trees can be uprooted and the sea can be described as "terror". People who live in old houses may need to move. Maximum red warning, wind 12, wind speed greater than 32. 6 meters/second, at this time I suggest that everyone hide as far as possible.

The weakened typhoon still carries rich warm and humid air after landing. After it goes deep into the land, it interacts with the relatively cold air over the land, often causing heavy rain, heavy rain and even extremely heavy rain, as well as strong convective weather such as thunderstorms and local tornadoes, and causing floods, mudslides and floods in mountainous areas, as well as meteorological disasters and derivative disasters such as small and medium-sized river reservoirs, ponds and dams.

At this stage, with the weakening of typhoon intensity and the stop of numbering, the typhoon warning will often be lifted. But at this time, we should not relax our vigilance, especially pay attention to the "rainstorm warning signal" issued by the meteorological department and the "geological disaster warning information" jointly issued by the meteorological department and the land and resources department, and timely transfer the people living and stranded in the valley bottom, downstream of reservoirs and ponds, dry river bed edge and urban and rural low-lying areas in the affected areas.