From the 4th to the 18th, there will be a strong precipitation process in Jiangnan, South China and other places. There is moderate rain in eastern Sichuan, most of Chongqing, northern Hunan, southeastern Guizhou, northern Guangxi, southern Guangdong and northern Shaanxi.
The average daily temperature in the above areas has dropped by 6~10 °C, and in some areas it has cooled by 12~14 °C. The Central Meteorological Observatory issued a blue warning for heavy rain at 60:4 on April 18.