"Lingling" became "drenched"? ! Autumn typhoons are all "tough roles"?

From this morning to this morning, the 13th typhoon "Lingling" was upgraded from a strong typhoon to a super typhoon in just five hours. In the future, it will gradually approach the coastal areas from the western part of the Korean Peninsula to the southeast of Liaoning Province in China, which will not only set off violent winds and waves in the Yellow Sea and the East China Sea, but also become a "shower" and bring violent storms to the northeast of China.

Why are all the words "autumn" annoying? For example, autumn mosquitoes and "autumn tigers" are no exception to typhoons. Autumn is coming, and autumn typhoon is coming as scheduled. How will it develop in the future? And listen to Xiaobian's analysis for you-

How did Lingling become "drenched"?

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As the first autumn typhoon since the fall of this year, "Lingling" is not as sweet as its name.

At 8 o'clock on September 2nd, the 13th typhoon Lingling was generated in the South China Sea. When it was a little girl, its intensity was only tropical storm.

Not long after, another tropical depression in the South China Sea intensified into the 14th typhoon "Swordfish" this year at 2 am on September 3rd, then landed on the coast of Vietnam and gradually approached the southern coast of Hainan Island in China.

Since then, the two sister flowers "Lingling" and "Swordfish" have started to influence China hand in hand, with wind and rain affecting Jiangsu, Zhejiang and Shanghai, the eastern part of Northeast China and the East China Sea, the Yellow Sea and the coastal areas of East China.

it came suddenly and left quite suddenly. "Swordfish" stopped numbering in the early morning of the 4th, and the influence of the wind weakened, but the rain was not over yet. Monitoring shows that there are heavy rains or rainstorms in the eastern part of Hainan Island and the central and eastern coastal areas of Guangdong, and heavy rains in Shantou and other places in Guangdong.

Now Lingling is left to fight alone, but it has become more and more brave. Meteorologists explained that after a summer of heat accumulation, the overall temperature on the northwest Pacific Ocean was higher, which was beneficial to the typhoon itself. And "Lingling" has been at sea since it was born, without the loss of land. In addition, after the swordfish stopped editing, enough water vapor from the southwest monsoon was absorbed by Lingling, making it more and more "fat" and stronger.

It is predicted that Lingling will move northward at a speed of 1-15 kilometers per hour, and will soon enter the southern part of the East China Sea, and its intensity will be enhanced. The maximum intensity will reach the super typhoon level, and it will enter the southern part of the Yellow Sea on the morning of the 7th, and then its intensity will gradually weaken, and it will approach the coast from the western part of the Korean Peninsula to the southeastern part of Liaoning Province.

In the next three days, the northbound typhoon "Lingling" will gradually bring wind and rain impacts to the coastal areas of East China and Northeast China. Zhejiang, Shanghai, Jiangsu and Northeast China, please pay close attention to the future dynamics of Typhoon Lingling and do a good job in defense; In the East China Sea, the Yellow Sea and other sea areas, it is necessary to guard against the adverse effects of strong winds on navigation vessels and offshore platforms and do a good job in safety management. In addition, Hainan Island, southern Guangdong and other places have had frequent heavy rainfall recently, and the accumulated rainfall is large, so it is necessary to guard against the secondary disasters that may be caused by the superposition effect of rainfall.

are typhoons so sharp in autumn?

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In many people's minds, typhoons are a specialty in midsummer. In fact, typhoons occur all year round. Autumn typhoons generally refer to typhoons generated after September.

Ai Wanxiu, chief forecaster of the Climate Service Office of the National Climate Center, told the reporter that with the alternation of seasons, especially the changes of subtropical high and sea surface temperature, the characteristics of autumn typhoons affecting China include landing more southwards and being more prone to strong typhoons, so the public should pay attention to prevention.

This is because the direct point of the sun moves from north to south during the transition from summer to autumn, resulting in warmer sea temperature. Sea water accumulates more heat, so it provides more energy for typhoons, and it is more prone to super typhoons.

in autumn, as the subtropical high moves eastward and southward, the typhoon track will gradually move southward. Mainly concentrated in the south of Zhejiang, the favorite landing provinces are Guangdong and Hainan.

according to the data of the central meteorological observatory, autumn typhoons often account for nearly half of the super typhoons, and sometimes the intensity will exceed that of summer typhoons.

It is worth noting that there are frequent cold air activities in autumn. If a typhoon meets cold air in autumn, it will often "join forces with the strong" to stimulate stronger precipitation, resulting in stronger winds, more rainfall and longer exposure to typhoons in the affected areas.

and the solar term from "autumnal equinox" to "light snow" is the mature period of late rice heading and flowering in southern China. When autumn typhoon strikes, it will cause serious crop yield reduction or crop failure, which is more harmful to agricultural production.

On October 7, 213, Typhoon Fete, which landed in Fuding, Fujian, met with cold air, causing a torrential rain in Yuyao, Zhejiang. On September 15th, 217, after Typhoon "Moranti" landed in Xiamen, a torrential rain occurred in Jiangsu and Zhejiang provinces, which caused landslides and mudslides in Suichang, Zhejiang Province. < P > What should we do about this autumn typhoon?

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The meteorological department predicts that there will be one or two tropical cyclones in the northwest Pacific in the next 1 days.

"Typhoons were active in the early autumn, but according to the forecast, there were fewer typhoons affecting China in general this autumn, and there were about two or three typhoons that landed or obviously affected China, which was close to the same period of the year." Ai Wanxiu said.

Li Mingmei, inspector of the Emergency Disaster Reduction and Public Services Department of China Meteorological Bureau, reminded that September is still an active period of typhoons, and South China and other places still need to do a good job in typhoon prevention. We should know that nearly 5 typhoons are generated on average in September all the year round, and about 1.8 typhoons land in China, and most of them land in Guangdong, Taiwan Province, Fujian and Hainan. Relevant departments should pay close attention to the impact of heavy rains and strong winds brought by typhoons on coastal areas, do a good job in typhoon prevention, and reduce casualties and property losses.

Take precautions against local autumn flood and its geological secondary disasters. In September, some parts of China will enter the autumn flood season, and most of the northwest and the south of southwest China should pay attention to prevent local heavy rains and floods and the mudslides and landslides caused by them.

In addition, cold air activities tend to be frequent in September, especially in the Yellow Sea and Bohai Sea, and the eastern and southern waters may also be affected by typhoons. Please pay attention to the weather changes in advance, guide fishermen to seek advantages and avoid disadvantages, and ensure fishing safety.

Produced by Economic Daily via Science Studio

Reporter: Guo Jingyuan

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