Typhoon Lekima has been raging all the way north, how fast can a typical typhoon move?

Fast moving speed generally occurs after the typhoon turns, that is, after the original northbound turns to the northeastbound, the moving speed will be significantly accelerated, generally 30-40km h,However, there are exceptions, such as Sangmi in '06, which moved from the Ryukyu Islands to the vicinity of the landing site in one day, depending on the guiding airflow.

The direction and speed at which the typhoon moves depends on the dynamics acting on the typhoon. There are two types of power: internal force and external force. The internal force is the resultant force to the north and west caused by the difference in geostrophic deflection force caused by the difference between north and south latitude in the typhoon range, and the larger the typhoon range, the stronger the wind speed, and the greater the internal force.

The external force is the force exerted by the external environmental flow field of the typhoon on the typhoon vortex, that is, the guiding force of the easterly wind belt of the basic airflow on the south side of the subtropical high in the northern hemisphere.

The internal forces mainly act when the typhoon is first formed, and the external forces are the dominant forces that manipulate the movement of the typhoon, so the typhoon basically moves from east to west. Due to the influence of the shape, position, intensity and other factors of the subtropical high, the path of typhoons is not uniform and becomes diverse. Taking the western North Pacific region as an example, there are roughly three typhoon paths:

1 Westward typhoons move westward from east of the Philippines through the South China Sea before making landfall on China's Hainan Island or northern Vietnam, mostly in October-November, as exemplified in 2006.

2 Landfall type: The typhoon moved northwestward, passed through the Taiwan Strait, made landfall along the coasts of Guangdong, Fujian and Zhejiang in China, and gradually weakened into a depression. This type of typhoon has the greatest impact on China.

In recent years, the two typhoons "9015" and "9711", which have had the greatest impact on Jiangsu, belong to this typeJuly and August are basically the same paths.

3 Parabolic type: The typhoon first moves northwestward, and when it approaches the eastern coastal areas of China, it turns to the northeast without making landfall and turns towards the vicinity of Japan, with a parabolic pathThis path mostly occurs after the formation of typhoons in May-June and September-November, and generally moves out of the source area and goes through the evolutionary process of development, weakening and extinction.

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At 2 a.m. on August 7, Typhoon Lekima was still a severe tropical storm, and 21 hours later, at 11 p.m. on August 7, it had become a 16-level super typhoon, jumping four times in less than a day, from a strong tropical storm all the way to a typhoon, and a strong typhoon finally strengthened to a super typhoon, and the speed of strengthening is indeed quite amazing.

It is expected that "Lekima" will move northwest at a speed of about 20 kilometers per hour, gradually approaching the coast of Zhejiang, and will make landfall along the coast from Xiangshan to Cangnan in Zhejiang from the early morning to the morning of the 10th, and the maximum possible landfall in the coastal area from Taizhou to Yueqing in Zhejiang (strong typhoon or super typhoon level, 14-16 scale, 45-52 meters and seconds). After landfall, "Lekima" will turn to move in a northerly direction and gradually weaken in intensity.

Shandong, Zhejiang, Jiangsu, Shanghai, Beijing, Hebei.

Coastal area bar.

Now in Shandong.

I still remember when I was very young, I didn't know much about typhoons, but I only heard from adults that typhoons were very scary, and every time adults talked about typhoons, they would hear about typhoons. At that time, I was left with a typhoon in my little head, which is a very scary thing. But I didn't know much at that time, I always thought that the typhoon was the wind in Taipei, and at that time I silently sympathized with the people of Taiwan I don't know how many times, thinking that they had to experience such a terrible thing, only to find out later that typhoons are not only in Taipei, but all over the world.

Today, let's talk about the wind power of typhoons.

Generally speaking, a wind speed greater than 18 or more can become a super typhoon, that is, the wind speed is more than 51 meters per second, and the destructive power brought by this wind speed is very, very large. Therefore, "Lekima" is also known as the biggest typhoon of the year.

In order to cope with this super typhoon,Our country's 10,000 firefighters are ready to deal with this disaster at any time, and I sincerely praise our firefighters here. Our lives have become so beautiful because of them.

Generally speaking, a typhoon between 14 and 15 is considered a strong typhoon. Wind speeds range from 42 to 51 meters per second.

It is reported that the "Lekima" typhoon will pass through the Zhejiang and Shanghai regions, for this reason, the Zhejiang and Shanghai areas have also made emergency protective measures, many places in Zhejiang and Shanghai have begun to suspend a lot of roads, and people are also prohibited from going out during the typhoon, in order to better cope with the typhoon.

Although the typhoon is terrifying, I believe that if we all work together, we will be able to better understand this difficulty.

**In June 2007, the Meteorological Observatory formulated the "Reference Table for the Impact Level of Tropical Cyclone Disasters", which gives the impact of each level of typhoon, onshore impact, marine impact, wave magnitude and wave height, storm surge and other disaster impacts. This comparison table is formed by the ** Meteorological Observatory on the basis of extensive field research, referring to and drawing on the classification standards of typhoon disaster impact in developed countries abroad.

With this comparison table, we can have a relatively clear understanding of the hazards caused by typhoons of various intensities, and we can take targeted defensive measures. The damage caused by super typhoons can be glimpsed from this comparison table.

Affective Level: Devastating Destruction.

The main manifestations of land-based impacts are: trees are generally blown down, and most of them are uprooted or broken at the waist; Non-frame brick-concrete (no ring beam) houses were generally destroyed; Some of the frame structure houses were damaged or destroyed; Large power facilities and communication towers were generally destroyed; A large number of large reinforced harbor cranes were damaged or destroyed.

The main manifestations of the impact at sea are: the capsizing of large ships.

Wave height and wave magnitude: generally more than 14 meters, the highest is more than 16 meters of rough waves.

Storm surge: generally meters and above, with the highest being meters and above.

Of course, the above is mainly for the high winds and storm surges caused by typhoons, and the impact of typhoons is also precipitation. However, there is no correlation between the intensity of precipitation and the level of typhoon. In addition, the damage caused by typhoons does not correspond to the intensity of the disaster, but is also closely related to the topography of the landfall site, the construction structure, the degree of economic development, and other factors.

Typhoons are one of the natural disasters that should not be underestimated, and everywhere they go, houses collapse and people and animals are either killed or injured, and there is a lot of violence that leaves no grass behind. The real interpretation of what it means to smell the "wind" and be frightened. Indeed, the fear caused by typhoons is beyond words.

Of course, not all typhoons are equally destructive, and there are levels of typhoons.

1. Tropical cyclones are divided into six grades: super typhoon, strong typhoon, typhoon, strong tropical storm, tropical storm, and tropical depression according to the maximum wind speed on the ground near the center, and the average wind speed near the center of the formation is greater than or equal to 51 meters per second for super typhoon, and the wind force above 16 is super typhoon, which is the highest level of typhoon.

Super typhoon is the highest level of typhoon, also known as super typhoon or super strong typhoon, the China Meteorological Administration abbreviated as superty, the Hong Kong Observatory abbreviated as supert, the United States Joint Typhoon Warning Center abbreviated as sty, the so-called super typhoon, refers to the maximum average wind speed near the center of the bottom is greater than or equal to 51 meters per second, is the most violent level of tropical cyclones in the northwest Pacific.

That is, the maximum sustained wind speed of 160 kilometers per hour near the center is extremely destructive, and there is almost no grass left in its reach, which is extremely rare on land. On the surface of the sea, the waves over 14 meters are extremely huge waves, and the huge waves on the sea surface are so mothropy, and the visibility is very low.

Second, according to the latest national standard of "Tropical Cyclone Classification" issued by the National Meteorological Bureau in 2006, two new typhoon classifications have been added: strong typhoon and super typhoon. The National Meteorological Centre of China and the Hong Kong Observatory define a tropical cyclone as a super typhoon if it approaches the centre with a maximum sustained wind speed of more than 185 km/h, and the difference between the National Meteorological Centre and the Hong Kong Observatory is that the National Meteorological Center of China uses a mean wind speed of 2 minutes, while the Hong Kong Observatory uses a 10-minute average wind speed.

Experts said that the impact of the typhoon is not limited to the landing site, once the typhoon hits, the surrounding people must not run around, the safest way is to stay at home, stop all outdoor activities, avoid being blown away by the wind and washed away by the water, usually the typhoon will be accompanied by heavy rain, so, when the wind and rain are strong, must not go to the low-lying place, to avoid being flooded by the rain. In addition, the flower pots placed on the balcony should be moved to a safe place indoors as soon as possible to avoid being smashed. Some dilapidated houses or unstable sheds and factories are best not to be approached easily.

Super typhoon, also known as super typhoon or super strong typhoon. A super typhoon is defined as a maximum mean wind speed of 51 metres per second or greater near the centre of the ground floor, ranging from a maximum sustained wind speed of 160 km/h near the centre to a maximum sustained wind speed of 240 km/h. This kind of wind is rare on land and extremely destructive.

Super typhoons have higher winds, which can be catastrophic and destructive.

Before a super typhoon can form, a weak tropical vortex must be present beforehand. The energy of a super typhoon comes from water vapor over the tropical oceans. In a pre-existing tropical vortex, the air pressure in the vortex is lower than that of the surrounding area, and the surrounding air carries a large amount of water vapor to the center of the vortex, and produces an upward movement in the vortex area, the moist air rises, the water vapor condenses, and a huge amount of latent heat of condensation is released, which promotes the formation of a super typhoon.

Super typhoons are generally classified as super typhoons of around 10 to 12, and this kind of typhoon is very damaging to the natural environment of human beings.

There are also holidays when they don't take people to be officials, and under normal circumstances, there will be several family visits a year, because after all, their means of transportation at that time were relatively backward, so the holidays were generally about ten days to half a month, and there were such official holidays.

Above level 16, that is, the wind speed in the center of the bottom layer is greater than or equal to 51 meters per second, and the continuous wind speed is 160 kilometers per hour, Lekima is a level 16 typhoon, so it is called a super typhoon.

Super typhoons are typhoons with a magnitude of 16 or higher, and it is reported that Typhoon No. 9 "Lekima" jumped 2 levels in intensity and quickly strengthened into a super typhoon! At 17 o'clock in the afternoon of the 8th, the central wind of "Lekima" has reached 58 meters and seconds, and the central pressure is 920 hPa, which has surpassed Typhoon "Butterfly" No. 2 this year and has become the king of wind this year!

Super typhoons are defined as tropical cyclones that are the most violent, approaching the center with maximum sustained winds of 160 km/h and a sum of more than 240 km/h.

Super typhoons generally refer to those above level 18, with a number of 51 meters per second. Such a typhoon is a super typhoon. This Typhoon Lekima is a super typhoon.

A level 16 or higher is called a super typhoon This is the most violent classification of tropical cyclones in the northwest Pacific Ocean Low to near the center of the maximum sustained wind speed of 160 kilometers per hour High or more than 240 kilometers or more This kind of wind is rare on land Very destructive At sea Waves of 14 meters or more White foam Extremely low visibility Catastrophic destructive power.

A typhoon is a wind force of 12 or more, while a super typhoon is a wind force of 18 and above, and if the wind speed reaches 51 meters per second or more, it is extremely destructive.

Through learning, I learned that the definition of a super typhoon is determined by the maximum wind speed in the eye of the typhoon or the surrounding core ground, and those above 16 are defined as super typhoons, and super typhoons are very destructive.

The super typhoon is called a super typhoon, that is, the level of the typhoon is relatively large, and it can no longer be described as a level or two, and the super layer can cause a lot of **, which will also cause a lot of pressure on people's spirit and spirit, and cause great damage to the economy.

According to international regulations, a category 12 typhoon is generally defined as a super typhoon. For example, the "Lekima" wind force reached 16 to 18 force this time. The limit of a super typhoon has been reached.

Typhoon Lekima is coming. Here, from the leaders to the citizens, we are actively preparing for typhoons. Because the weather forecast says it's level 18. A Category 18 typhoon is a super typhoon.

I think it may be defined by the damage caused by typhoons. The super head should be very strong, or the strongest typhoon.

A Category 12 typhoon will be called a super typhoon, but it does not mean that there are no other typhoons above Category 12, and Category 12 describes all super typhoons.

Not Typhoon Limaki, but Typhoon Lekima (Typhoon No. 9 of 2019). Maximum winds of force 16 near the centre of Lekima.

Typhoon "Lekima" was upgraded to a super typhoon at 23 o'clock on July 7, 2019, and at 17 pm on the 8th, the maximum wind near the center of "Lekima" has reached 58 meters and seconds, and the central pressure is 920 hPa, surpassing Typhoon "Butterfly" No. 2 this year and becoming the king of wind this year.

At around 1:45 on August 10, 2019, "Lekima" made landfall on the coast of Wenling City, Zhejiang Province as a super typhoon, with a maximum wind force of 16 (52 meters and seconds) near the center and a minimum pressure of 930 hPa at the center at the time of landfall, becoming the strongest typhoon to land in China this year, and at the same time ranking third among the strongest typhoons that landed in Zhejiang since the founding of the People's Republic of China. It is expected that after landfall, it will move northward, passing through Zhejiang, Jiangsu, Shandong and other places, and gradually weakening in intensity.