China News Service, July 25. According to the website of the China Meteorological Administration, the Central Meteorological Observatory announced the typhoon landing news at 12:30 on July 25: The center of this year's No. 6 typhoon "Fireworks" has been at 12 noon today (25th) It landed on the coast of Putuo, Zhoushan, Zhejiang Province around 30 minutes. The maximum wind force near the center was 13 (38 m/s) at the time of landing, and the lowest air pressure in the center was 965 hPa.
The "fireworks" are expected to pass through Hangzhou Bay and make landfall again this evening from Jiaxing, Zhejiang to Qidong, Jiangsu (typhoon level, level 12, 33-35 m/s).
According to meteorological experts, the typhoon "Fireworks" has the characteristics of complicated path, wide range of influence, superimposed wind and rain tide, long duration on land after landing, and large accumulated rainfall.
Multiple typhoons interact with each other and their paths are complicated.
This year’s No. 6 typhoon "Fireworks" was generated on the Northwest Pacific Ocean at 02:00 on July 18, and then the No. 7 typhoon "Chapaca" and No. 8 typhoon "Niya" were generated on the east and west sides of the "Fireworks". "Bert", the interaction of multiple typhoons and the influence of other weather systems have resulted in slow movement of the "fireworks", complex paths, and difficult forecasts.
The typhoon is large and has a wide range of influence.
The “firework” cloud system is very wide, with a span of about 1,500 kilometers from east to west and a span of about 1,200 kilometers from north to south.
"Fireworks" yesterday (24th) has brought great wind and rain to Zhejiang, Shanghai, Southern Jiangsu and other places, and will continue to affect most of eastern China such as Zhejiang, Shanghai, Jiangxi, Jiangsu and Anhui in the later period.
After landing, the land lasted for a long time and accumulated rainfall.
Although the intensity of the "fireworks" gradually weakened after landing, the accumulated rainfall in Zhejiang, Shanghai, Jiangsu, northeastern Jiangxi, and southern Anhui was large. The above-mentioned areas must guard against the effects of extreme rainfall caused by the "fireworks" and the weakened residual circulation.
Three storms meet, and the impact is superimposed.
July 25th is during the astronomical tide. Before and after the "fireworks" landed in Zhejiang, Shanghai, Jiangsu and the coastal areas, three encounters of wind, rain and tide will occur, which will have a great superimposed influence.
Typhoon "Fireworks" may stay for a long time after landing, bringing continuous heavy rainfall and windy weather to East China. At the same time, it is during the astronomical tide period. The three storms meet, and the public in Zhejiang, Shanghai, Jiangxi, Jiangsu, Anhui and other places need Prevent the occurrence of disasters such as urban and rural waterlogging, floods in small and medium rivers, and mountain torrents.
In addition, Shandong, Henan and other places also need to pay close attention to the future mobile trend and influence of "fireworks".
Gale forecast: From the 25th to the 27th, the southern Yellow Sea, the East China Sea, the Taiwan Strait and the waters near the Diaoyu Islands, the Yangtze Estuary, Hangzhou Bay, central and southern Jiangsu and coastal areas, Shanghai and coastal areas, Zhejiang and coastal areas, central and northern coastal areas of Fujian, Taiwan Island There will be strong winds of magnitude 6 to 8 and gusts of magnitude 9 to 11 along the western coast, including most of the East China Sea, the southwestern part of the Yellow Sea, the north-central and coastal areas of Zhejiang, the Yangtze River Estuary, Hangzhou Bay, Shanghai and the coastal areas, and the southeastern Jiangsu and coastal areas. There are grades 9 to 11 and gusts of grade 12 to 14; the nearby sea area or area where the "firework" center passes can reach winds of grade 12 to 13, and gusts of grade 14 to 16.
Rainfall forecast: From the 25th to the 29th, there will be heavy to heavy rains in Taiwan Island, Zhejiang, Shanghai, Jiangsu, Anhui, northern Fujian, northeastern Jiangxi, southern Shandong, eastern Henan, etc., central and southern Taiwan, Zhejiang, Shanghai, Jiangsu There were heavy rainstorms in parts of the south and west, Anhui and other places, and there were extremely heavy rainstorms locally.
The accumulated rainfall in the above-mentioned areas is 60-180 mm, 200-500 mm in central and northern Zhejiang, Shanghai, southern Jiangsu, central and southern Anhui, and southern Taiwan. The local area can exceed 700 mm; the maximum hourly rainfall is 40-60 mm. The ground can reach more than 80 mm.