[Core area of heavy rainfall in south China shifts to southern China and other regions, with temperature drop south of the Yangtze River] Today (May 23), the area of heavy rainfall in south China will shift to southern China and other regions, with torrential rain or extremely heavy rainfall expected in parts of Guangxi, Guangdong, and Fujian. Meanwhile, influenced by the cold air and rainfall, a temperature drop will also occur south of the Yangtze River. Temperatures in many regions, both north and south, will shift from being significantly above normal to below normal, with areas where the maximum temperature exceeds 30℃ only remaining in southern China and the Sichuan Basin.