What is the typhoon in Shenzhen?

At 6 o'clock on July 1 2022, Shenzhen Meteorological Observatory upgraded the typhoon white warning to blue. It is estimated that the average wind force in our city will increase to above 6 (or gust above 8) due to the influence of Typhoon Siam (a strong tropical storm) No.3 this year. Enter the city's typhoon warning state. At present, rain clouds will affect Shenzhen from east to west under the efforts of Typhoon Siam, so the umbrella you took before going out is still useful. The weather that Shenzhen people are most concerned about these two days is typhoon. It is predicted that the typhoon "Siam (xiān) Ba (bā)" will land in the coastal area from the east of Hainan Island to the west of Guangdong on the night of July 2 (strong tropical storm or typhoon, 10- 12, 28-33m/s). The wind and rain impact of Typhoon Siam has been significantly enhanced. Yesterday afternoon, Shenzhen began to stage a "storm" blockbuster, and the Municipal Meteorological Observatory issued a yellow warning for regional thunderstorms and strong winds. What about Typhoon Siam? At 8: 00 on the 30th, the tropical depression in the South China Sea intensified to Typhoon Siam (tropical storm level) No.3 this year. At 6 o'clock today, the center of "Siam Ba" (strong tropical storm level) is located on the sea 506 kilometers south of our city. The maximum wind force near the center is 10, the lowest air pressure in the center is 980 hectopascals, and the moving speed is 18 kilometers per hour. In the future, it will continue to move to the northwest at the speed of 15-20km/h (almost the same as ordinary people riding bicycles normally), and the intensity will gradually increase. Affected by Siam Ba, the rain in Shenzhen will intensify today, and there will be heavy rain or even heavy rain for several days. Affected by the external circulation of Siam and the southwest monsoon, 1 has heavy rain to heavy rain, with heavy rain lasting for 2-4 days; In addition, on 1-2, the maximum gust in coastal areas, sea areas and highlands can reach 8-9; It is expected that there will still be heavy precipitation on May 7th. What's the rainfall in Siam? Wang, a meteorologist from China Weather Network, said that because the typhoon is sandwiched between the subtropical high and the continental high, and it is far away from them, and lacks strong turning airflow, Siam will turn around and move less after landing, which will affect Guangxi and Guangdong for a long time. The heavy rainfall lasted for a long time and the accumulated rainfall was large. The local rainfall will exceed 400 mm.