Weather Changes in China - The weather patterns in China are contrasting, with northern regions experiencing cooler temperatures while southern regions continue to face high temperatures [1][6] - Southern high temperatures have temporarily decreased but are expected to return after September 11 due to the strengthening of subtropical high pressure [4][3] Southern High Temperature Records - Southern cities like Hangzhou and Nanchang have set records for consecutive high-temperature days, with Hangzhou reaching 35 days and Nanchang recording its 60th high-temperature day this year [1][3] - Despite a temporary reduction in high temperatures, many areas in the south are still experiencing extreme heat, with records likely to be broken in the coming days [1][3] Northern Cooling and Temperature Variations - Northern regions are experiencing significant temperature drops, with notable increases in the temperature difference between day and night, exemplified by locations like Dunhuang, where the temperature difference exceeds 20°C [6][4] - The onset of the "White Dew" solar term is expected to further accentuate these temperature variations [6] Rainfall and Typhoon Activity - Rainfall is expected to concentrate in regions between the Yellow River and the Yangtze River, with significant precipitation anticipated in southwestern areas [7] - The formation of Typhoon "Tabha" is imminent, with expectations of it making landfall in Guangdong, leading to increased rainfall in southern regions [9][8]

Summary of Key Points Core Viewpoint - The article discusses the impact of weather changes across various regions in China, highlighting significant rainfall in the northwest and central areas, while the southern regions continue to experience high temperatures and humidity. Group 1: Rainfall and Weather Patterns - Significant rainfall is expected in southeastern Gansu, Sichuan, Shaanxi, Shanxi, Hubei, and other areas due to the convergence of cold and warm air masses, with some regions experiencing heavy to torrential rain [1][2] - The Central Meteorological Observatory predicts that areas such as eastern Inner Mongolia, western Huanghuai, and parts of the Sichuan Basin will see moderate to heavy rain, with some areas facing heavy rain or torrential rain [2][4] - The rainfall is expected to continue, with warnings for potential secondary disasters such as mountain floods and geological hazards in regions like southern Shaanxi and eastern Sichuan due to the increased frequency of rain [4] Group 2: Temperature Variations - The southern regions are experiencing a significant expansion of high temperatures, with areas like Chongqing, Hubei, and Zhejiang recording temperatures above 35°C [5] - The article notes that the high-temperature conditions will persist, with the maximum range expected to be the largest in recent times, affecting areas from southern Henan to Guangxi and Guangdong [5] - In contrast, northern regions are experiencing a drop in temperatures due to cold air and rainfall, with maximum temperatures in places like Beijing and Shijiazhuang expected to fall below 25°C, marking a significant cooling trend [5]