The typhoon has arrived. Bleak what your situation is there

1. There are two main situations for the demise of typhoons: one weakens and disappears; The second becomes an extratropical frontal cyclone. After the typhoon makes landfall, the water vapor** decreases, the energy is depleted (the power is gone), and the friction on land is much greater than that at sea due to the unevenness of the underlying surface.

In addition, the bottom air pours into the center of the typhoon, and the convergence of the bottom layer is much greater than the spread of the upper layer, which destroys the structure of the typhoon and will naturally disappear. In the process of moving, if the typhoon moves to the high latitudes, there will generally be cold air intrusion, and the interaction with the typhoon is easy to form cold and warm fronts, becoming an extratropical frontal slag cyclone, and the typhoon will become a thing of the past.

2. Typhoon (English: typhoon) is a type of tropical cyclone. A tropical cyclone is a low-pressure vortex that occurs over the tropical or subtropical ocean, and is a powerful and deep "tropical weather system".

In China, tropical cyclones in the South China Sea and the Northwest Pacific Ocean are classified into six categories according to the maximum average wind speed (wind speed) near the center of the bottom layer, among which those with winds of 12 or above are collectively referred to as typhoons.

There are two paths for the demise of typhoons:

1. After the typhoon makes landfall on land, the typhoon will quickly weaken and die out due to the combined influence of ground friction and lack of energy, and the residual cloud system after the demise can bring long-term heavy rainfall to a certain place.

2. After the typhoon turns in the northern part of the East China Sea and makes landfall in South Korea or passes through the Korean Strait, it degenerates into an extratropical cyclone in the Sea of Japan, and after degenerating into an extratropical cyclone, it dies more slowly.

There are two paths for the demise of typhoons:

The first is: after the typhoon makes landfall on land, due to the combined influence of ground friction and lack of energy, the typhoon will quickly weaken and die, and the residual cloud system after the demise can bring long-term heavy rainfall to a certain place.

The second is that after the typhoon turns in the northern part of the East China Sea and makes landfall in South Korea or passes through the Korean Strait, it degenerates into an extratropical cyclone in the Sea of Japan, and after degenerating into an extratropical cyclone, it dies more slowly.

Typhoons generally go through three stages from formation to extinction.

The first is the generation phase (where most typhoons disappear).

The second stage is the maturity stage, with a complete and clear eye of the typhoon. At this time, the central pressure of the typhoon reaches its lowest, and the extent of strong winds and heavy rain also reaches the maximum. The eye of the typhoon is located in the center of the typhoon, generally 10-50 kilometers in diameter, and is mostly circular.

The air flow in the eye area is sinking, so the weather is usually sunny and the wind speed is very small. But the four walls of the eye of the typhoon are towering walls of clouds (typhoon eye walls), generally one of the tens of kilometers thick.

The third stage is the weakening and extinction phase. The lifespan of a typhoon in the Northwest Pacific is generally 2-7 days, with an average of about 124 hours. There are two main ways for a typhoon to die.

One is that after landfall, due to the cutting off of the latent heat energy of seawater**, coupled with the high friction on land, a large amount of kinetic energy of the typhoon is consumed. The other is when the typhoon moves north to a higher latitude, cold air enters the rear, and the tropical cyclone becomes an extratropical cyclone and dies.

Typhoons and hurricanes are both tropical cyclones, but they occur in different locations and are called typhoons in the western North Pacific Ocean, west of the International Date Line, including the South and East China Seas; Tropical cyclones in the Atlantic Ocean or the eastern North Pacific are called hurricanes, that is, hurricanes in the United States, and typhoons in the Philippines, China, and Japan. If it's in the Southern Hemisphere, it's called a whirlwind.

One is that the typhoon has no continuous water vapor replenishment when it reaches land, and the other is that the typhoon is weakened due to the obstruction of land topography and other places.

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The first is the westerly path, the typhoon passes through the Philippines or the Balintang Strait and the Bashi Strait into the South China Sea, and goes west to Hainan Island or Vietnam to make landfall, which has a great impact on China. The second is the northwest track, where the typhoon moves west-northwestwards and makes landfall in Taiwan Province before crossing the Taiwan Strait and making landfall in Fujian Province. This path is also called a landing path.

The third Sakura-Zheng is the steering path, and the typhoon moves northwest from the sea east of the Philippines and turns northeast around 25°N towards Japan. This path has little impact on our country.

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Hello Resistant, I am asking a question and answer master Li Laoyou Mu Code Master: The typhoon has arrived near the South China Sea Typhoon No. 20 "Nesat" in 22 years is currently located in the northeast of the South China Sea, and will cross the South China Sea in the future and approach Hainan Island, with the strongest reaching the strong typhoon level. <>

Affected by it, on the 17th-21st, there will be windy weather in the eastern seas, southern seas and coastal areas of South China, and there will be significant rainfall in Hainan Island, Guangxi, central and southern Guangdong and other places** The meteorological observatory continues to issue a yellow warning for typhoons, and it is expected that "Nesat" will move west-southeast at a speed of 15 20 kilometers per hour, and the intensity will be enhanced, and the strongest can reach the strong typhoon level (14 levels, 42 45 meters and seconds). On the 18th, the intensity of "Nesat" will gradually weaken and approach the coast of the southern part of Hainan Island, and after passing the sea surface of the southern part of Hainan Island on the 19th, it will move towards the northern part of Vietnam. At present, the possibility of "Nesat" making landfall on the southern coast of Hainan Island cannot be completely ruled out.

Gale forecast: Under the combined influence of Typhoon "Nesat" and cold air, from the 17th to the 20th, there will be 8 9 gale with gusts of 10 11 in the East China Sea, the northern and central waters of the South China Sea, as well as the coasts of Zhejiang, Fujian and Guangdong, the coast of Taiwan Island, and the eastern and northern coasts of Hainan Island, and the winds in the Taiwan Strait, some parts of the northern and central parts of the South China Sea can reach 10 11 and 12 13 gusts, and the winds in the nearby waters where the typhoon center passes can reach 12 14 and 15 16 gusts. In addition, there will be 4 6 northerly winds in Jiangnan and South China, and gusts of up to 8 9 in some areas.

I'm asking a question and answer the main life expert Nan Leaning. <>

<> typhoon has come to Taiwan. At present, the path of "Kanu" has undergone a major adjustment, and its uncollapsed trend depends on the changes of the subtropical high on August 3 and 4. The upper-air trough on the north side will gradually move eastward in the next few days, which will have a great impact on the intensity and location of the subtropical high.

If the subtropical high is suppressed by the cold and dense air from the north and weakens and breaks, 'Kanu' will be guided by the southwest wind to move towards Japan and South KoreaIf the source pressure of the subtropical high is not broken or the fault is late, it may lead the typhoon to land on the east coast of China. Zhang Juan explained.