Typhoon "Xuan Lannuo" has the first unique path expert to analyze the cause of the meteorological records

Cover news reporter Teng Yan Leader Feng Rui

On September 2nd, the cover reporter learned from the China Meteorological Administration that at 14:00 on that day, Typhoon Xuan Lannuo Center No. 11 this year was located in the east of Taiwan, about 405 kilometers east of Taitung City, Taiwan Province. The maximum wind power is 14 levels (45 meters/second), the level is a strong typhoon. It is worth noting that "Xuan Lannuo" has appeared unique since the meteorological records for the first time.

The Central Meteorological Observatory predicts that "Xuan Lannuo" will move north to west of the west, and move into the East China Sea on the 3rd on the 3rd. The intensity will develop again. It is still impossible to rule out the possibility of landing on the eastern coast of my country.

"Xuanlan Nuo" is large, long, and strong

Zhou Guanbo, chief forecaster of the Typhoon and Marine Meteorological Forecast Center of the Central Meteorological Observatory, pointed out that after the generation of "Xuan Lannuo", an annexed tropical low pressure in the south was annexed to make it larger. At the same time, due to the control of the subtropical high -pressure control, the early high temperature weather caused the sea temperature to be high, and the energy was supplemented to "Xuanlan Nuo", so that it within 24 hours (2:00 on August 29th to 2:00 on the 30th). Three ", upgraded from a strong tropical storm to a super typhoon. On the satellite cloud map, the structure of "Xuan Lannuo" is clearly visible, and this structure is only available in a small number of typhoons.

At present, the possibility of "Xuan Lannuo" in my country cannot be ruled out. But even if it does not log in, due to its wide range of winds, large scale, long duration, and strong intensity, it will also affect my country's coastal areas.

Why is the "Xuanlan Nuo" path so unique?

The unique path of Typhoon "Xuan Lannuo" has also attracted much attention. The general typhoon is generated in the waters of about 5 ° ~ 20 ° north -south latitude, and the "Xuanlan Nuo" generation area is 25.9 ° north latitude, which is relatively rare. Due to the influence of the subtropical high pressure, "Xuan Lannuo" moved towards the southwest after the generation. The water temperature here is higher, which makes "Xuan Lannuo" strengthen it to a super typhoon level. At present, "Xuan Lannuo" is in the saddle -shaped gas pressure field, and the guidance of the airflow is weak. Therefore, it is kept in place.

It is expected that on the 3rd, due to the high pressure of Donghuan subtropical, and after the west wind groove deepen, "Xuan Lannuo" will move north to west and enter the warm water area of ​​the East China Sea, which may once again develop into a super typhoon. Zhou Guanbo pointed out that it is very rare for typhoons to reach the super typhoon level in the East China Sea area. The global warming and the phenomenon of La Nina are behind the scenes that cause the special phenomenon of "Xuanlan Nuo".

Zhou Guanbo reminded that relevant departments should do a good job in typhoon prevention and emergency response in accordance with their duties. Related water operations and past ships should return to Hong Kong to avoid wind, strengthen port facilities, and prevent ships from anchoring, stranding and collision.

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