暴雨，大暴雨，要来了！

Core Viewpoint - The article discusses the impact of recent heavy rainfall and the approaching Typhoon "Hagupit" on various regions in China, particularly focusing on the risks of secondary disasters and the need for public preparedness [1][2][8]. Weather Impact Summary - From September 21 to 22, heavy rainfall is expected in Sichuan and Shaanxi, with warnings for potential secondary disasters due to continuous rain [1][8]. - The remnants of Typhoon "Mina" have already caused strong rainfall in Guangdong and other areas, with significant rainfall recorded in various regions [2]. - The Central Meteorological Observatory predicts further heavy rain in multiple provinces, including Guangdong, Yunnan, and Sichuan, with some areas experiencing torrential rain [2][4]. Typhoon "Hagupit" Forecast - Typhoon "Hagupit" is expected to enter the northeastern part of the South China Sea on September 23, bringing strong winds and heavy rain to southern China [1][8]. - The most intense impact from the typhoon is anticipated between September 23 and 25, affecting Guangdong, Fujian, and Guangxi [8]. Temperature Changes - A significant drop in temperatures is expected in southern China due to the influence of cold air from the north and typhoon activity, with maximum temperatures in Jiangnan dropping to around 25°C [9]. - Northern regions will also experience cooler weather, with maximum temperatures around 20°C and minimums around 10°C, necessitating appropriate clothing adjustments [9].