“最强降雨”！极端性强！高度警惕→

Core Viewpoint - A new round of heavy rainfall, the strongest this year, is set to impact a large part of southern China starting from the night of May 27, with significant risks of disasters due to extreme rainfall conditions [1][2][3]. Summary by Sections Rainfall Characteristics - The upcoming rainfall is characterized by high intensity, with heavy rain or torrential rain expected to be the norm during this weather event [1][2]. - The affected areas will include most regions south of the Yangtze River, with the heaviest rainfall expected in Guizhou, Hunan, and northern Guangxi, expanding eastward to Jiangxi [2][4]. Meteorological Analysis - Meteorological experts attribute the strong rainfall to the development of a low vortex shear line and the influx of moisture from the Bay of Bengal and the South China Sea, combined with favorable wind conditions [3]. Extreme and Disaster Risks - The rainfall is expected to be extreme, with some areas in Guangxi and Guangdong potentially breaking historical records for daily rainfall in May [4][5]. - The overlap of heavy rainfall areas with previous rainfall events increases the risk of flash floods, geological disasters, and urban flooding, particularly in regions like Hunan, Jiangxi, and Guangxi [5]. Safety Guidelines - Residents are advised to stay informed about weather forecasts and warnings, minimize outdoor activities, and take precautions to prevent water ingress in homes [5][7]. - In case of flooding, individuals should avoid dangerous areas, ensure the safety of children and the elderly, and refrain from engaging in water-related activities during heavy rain [20].