The flood in Henan was affected by typhoon fireworks, and the subtropical high caused atmospheric circulation and long-term water storage. This stable atmospheric circulation has led to long-term precipitation in central and western Henan, with a total rainfall of 6 1 1. 1 mm, and the total rainfall in a single day has exceeded the historical record.

Strong typhoon fireworks is the sixth named storm in 20021Pacific typhoon season. Fireworks was upgraded to a tropical storm by the Central Meteorological Observatory at 2 o'clock on July 20th, 20265438, and upgraded to a strong typhoon by the Central Meteorological Observatory on July 25th 1 1, and landed in the coastal area of Putuo District, Zhoushan City, Zhejiang Province around 12: 30.

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. The typhoon is large and has a wide range of influence. After landing, it lasted for a long time on land and accumulated heavy rainfall. The subtropical high is located in the northeast, and the turning airflow is weak. A saddle-shaped field is formed between the continental high and the subtropical high, which limits the path of fireworks, which is the reason why the second landing time has been postponed again and again.