Is it true that two typhoons hit in pairs?

This year's No.1 18 typhoon "Lee Tae" was generated at 20: 00 on September 9th in the northwest Pacific Ocean east of the Philippines. At 20: 00 on September 2, the center of 18 was located on the ocean surface 990 kilometers southeast of Zhoushan, Zhejiang. Wind power 13, air pressure 965 hectopascals. The radius of the wind ring of Grade 7 and Grade 10 is 200 ~ 350 respectively. It is estimated that "Lee Tae" will move to the north-north direction at a speed of 20 ~ 25 kilometers per hour. The strongest typhoon level or super typhoon level will land on the coast of central and northern Zhejiang from the night of 14 to the morning of 15 (typhoon or strong typhoon level, wind force 13 ~ 15), or it may be.

The analysis and forecast show that typhoons 18 and 19 have six characteristics:

First, typhoons pair up and influence each other. It is estimated that "Teli" may land on the northern coast of Zhejiang from the night of 14 to the morning of 15, or it may turn to the coastal area of Zhejiang and move northeast on 15. Whether "Teli" will land will have a serious impact on the east China coast. 19 typhoon may land in the coastal area from Hainan to western Guangdong on June 5438+05. Within one day, two typhoons landed in succession or affected the coastal areas of East China and South China, covering a wide range of storms and waves.

Second, energy is constantly gathering and the wind is strong. It is predicted that the wind force can reach 14 ~ 16 in the peak period of "Lee Tae", and the maximum wind force in the center can still reach 13 ~ 15 when landing or approaching the coast of Zhejiang, which may become the strongest typhoon affecting the east China coast this year. Typhoon 19 may make landfall in its heyday, with winds ranging from 13 to 14. East China and South China coastal areas will face the disadvantage of defending against two strong typhoons at the same time.

Third, the storm increased water and the sea conditions were bad. Affected by "Lee Tae", there will be a big storm water increase from the Yangtze River estuary to the coastal area of Fujian, and the biggest storm water increase in the coastal area of Zhejiang can reach 300 cm. The maximum breaking wave zone13m will appear in the eastern part of Taiwan Province Province and the southern part of the East China Sea, and the maximum breaking wave zone of 7m will appear in the northern part of Zhejiang and the coastal waters of Fujian. Affected by typhoon 19, the maximum water increase 160 cm will appear in the eastern coast of Leizhou Peninsula, the eastern coast of Hainan and the southern coast. The maximum value of 10 meter will appear in the eastern, north-central and northwestern South China Sea and Beibu Gulf. There will be a wild wave area with a maximum of 6 meters in the west of Guangdong and the east coast of Hainan. Affected by two strong typhoons, the waves in this sea area are high and the typhoon waves are steep, which is easy to produce freak wave and the sea conditions are very bad.

Fourth, the typhoon is full of water vapor and heavy rain. Affected by two typhoons, the precipitation may last for four days, involving East China, South China and Southwest China 10 provinces, autonomous regions and municipalities directly under the central government. It is estimated that there will be a large range of heavy rainfall in the eastern, southern and southwestern parts of the Yangtze River from13 to16. The rainfall in some areas of Zhejiang, Shanghai, Jiangsu, Fujian, Hainan and Guangdong is 200-350 mm. If the landing point of typhoon 19 is northward, it will affect a larger area.

Fifth, there are many influencing factors and variables. With the weakening of subtropical high and the adjustment of eastward withdrawal, "Teli" may move northeast near the coast of Zhejiang after reaching its peak. Affected by continental high, subtropical high adjustment and southwest monsoon, typhoon 19 is still uncertain. In addition, due to the interaction between double typhoons and subtropical high, the steering flow is constantly changing, and there are certain variables in the development, path, intensity, landing location and influence of typhoons in the later period.

Sixth, autumn typhoons are threatening and disastrous. According to the analysis of historical data, the intensity of typhoons in autumn has always been high, especially in the East China Sea. The area affected by "Teli" is the most economically developed area along the eastern coast of China, with dense cities, concentrated population, many high-rise buildings and numerous industrial and mining enterprises, and the flood control and typhoon prevention work is facing a major test. The coast of South China has been hit or affected by typhoons many times, and the second landing of Typhoon 19 will cause superposition effect and even cause serious floods.