The reason why the moving path is changeable is that the subtropical high in the north is weak recently, and there is no other strong turning current around, which causes the fireworks of "Big Guy" to move slowly in the "saddle field" formed between the continental high and the subtropical high almost by its own "internal force". This has led to continuous heavy rain and strong winds in the northeastern part of Zhejiang.
Brief introduction of other situations of fireworks typhoon.
Fireworks were upgraded to a tropical storm by the Central Meteorological Observatory at 2 o'clock on July/July 18, 2002, and upgraded to a strong typhoon by the Central Meteorological Observatory at July 2510, and landed in the coastal area of Putuo District, Zhoushan City, Zhejiang Province around 12: 30, with the maximum wind near the center when landing.
The typhoon "Fireworks" has a symmetrical structure, thick clouds and obvious typhoon eyes. At the same time, the low-level inflow and high-level outflow conditions are good, which is conducive to the development and enhancement of typhoons. Multiple typhoons interact with each other and have complicated paths.