Tian Ge has brought violent storms to Zhuhai. Land breeze 12, gust 13- 14. Coastal and offshore winds 13- 14, Typhoon Tian Ge caused two deaths and 275 houses collapsed in our city.
This is also the typhoon that has the greatest impact on Hong Kong, Zhuhai and Macao in the past 53 years after typhoon "Ruby" of 1964. Tianzhu and astronomical tides overlap, causing seawater and Pearl River water to flow backwards. Lovers Road in Zhuhai was hit hard by typhoon. After the typhoon passed through Zhuhai, there was a phenomenon of "the ship went ashore and the car went into the sea".
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I. Introduction to Tian Ge
Typhoon Tian Ge (English: Typhoon Hato, international code: 17 13, Joint Typhoon Warning Center: 15W, Philippine Atmospheric Geophysical and Astronomical Administration: Isang) is the named storm of the Pacific typhoon season of 20 17.
On August 20, 2007, 14 was generated in the northwest Pacific Ocean. After that, the intensity continued to strengthen, and it intensified into a strong tropical storm at 8: 00 on August 22 and a typhoon at 15. At 7 o'clock on August 23rd, it became a strong typhoon, with two consecutive 52m/s a day, with the strongest reaching 15 (48m/s, revised to16,52m/s in the yearbook). At around 12: 50, it was a strong typhoon (14,45m/s) in Zhuhai, Guangdong Province, China. On August 24th, it weakened into a tropical depression at 14, and the Central Meteorological Observatory stopped numbering it at 17.
Typhoon Tian Ge caused the Central Meteorological Observatory to issue the first typhoon red warning signal in 20 17, and the meteorological departments of Hong Kong and Macao issued the hurricane signal 10, which coincided with the astronomical tide and caused great damage to Zhuhai, Hong Kong and Macao, causing 24 deaths and economic losses of 6.82 billion US dollars, including 4.38 billion US dollars in Chinese mainland, 0.02 billion US dollars in Hong Kong/kloc and 0.02 billion US dollars in Hong Kong/.
20 18 At the 50th annual meeting of Typhoon Committee held in Hanoi, Vietnam from February 28th to March 3rd, it was decided to delete the name "Tian Ge".
Second, the characteristics of the typhoon
1, the path changes greatly
On August 2 1, 20 17, the predicted paths all point to Shanwei, Guangdong, and on August 22, 20 17, they all point to the west of the Pearl River estuary 14. Path change is extremely unfavorable to defense preparation, especially for slow-moving ships.
2. Great changes in strength
At 201August 20, 7 14, the landing intensity was predicted as a tropical storm. On 20 17, it intensified into a severe tropical storm or typhoon on 20 August 14, and intensified into a typhoon on 22 August 14. On the morning of August 22, after entering the South China Sea with the intensity of tropical storm, the wind force jumped by 5 in 24 hours, and the wind force soared from 9 to 14.
It was adjusted to a strong typhoon at 6 o'clock on August 23. And after entering the South China Sea, the moving speed has been accelerated, which has been above 25 km/h and exceeded 30 km/h in some periods. It takes only 29 hours from entering the South China Sea to landing, and the deployment time is urgent.
3. The history of storm surge water increase is rare.
Storm surge only "meets" astronomical tides and high tides. 2065438+On August 23rd, 2007, the six stations reached the highest climax in history, once in a hundred years. Typhoon Tian Ge passed through the central and eastern Guangdong and the northern South China Sea with 6- 10 meters of wild waves to wild waves. Storm surges and huge waves seriously threaten the safety of people and facilities in low-lying coastal areas.
4. The travel path and landing point are extremely unfavorable.
The included angle between the travel path and the coastline is small, which causes the Pearl River Delta urban agglomeration to be located on the right side of the more destructive typhoon, which causes the typhoon to sweep through nine cities in the Pearl River Delta. Guangzhou, Shenzhen, Zhuhai, Foshan, Zhongshan, Jiangmen, Dongguan, Huizhou, Zhaoqing, Yangjiang, Yunfu, Maoming, Guangzhou, Zhongshan, Zhuhai, Dongguan and Jiangmen all suffered strong winds and severe storm surges.
Compared with Typhoon Rainbow, which landed in Zhanjiang in June 20 15, and Typhoon Nida, which landed in Shenzhen in August 20 16, Tian Ge has a greater impact, mainly concentrated in the Pearl River Delta region with dense population, industry and buildings.
5. The typhoon's subsequent rainfall is strong.
Heavy rain occurred in parts of western Guangdong, with the maximum rainfall of 1 hour, Sanhe Town, Taishan City, Jiangmen City 126.3 mm, setting a 50-year precipitation record, and the maximum rainfall occurred in Xieji Town, Gaozhou City, Maoming City, reaching 322.4 mm.
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