寒潮为何带来冻雨？专家详解入冬最强雨雪冰冻天气

Core Viewpoint - A significant cold wave is affecting most parts of China, bringing widespread low temperatures, rain, snow, and ice, with severe impacts particularly in southern regions [1][3][4] Group 1: Weather Impact - The cold wave began on January 17, with a drastic drop in temperatures, especially in southern regions like Hunan and Guizhou, which experienced freezing rain [1][3] - The Central Meteorological Administration issued multiple weather warnings, including a yellow alert for cold waves, freezing, and blizzards on January 18 [3] - The cold air system, originating from Siberia, is spreading southward, affecting a large area with significant temperature drops and prolonged cold conditions [3][4] Group 2: Rain and Snow Conditions - A complex precipitation pattern is expected, with rain, snow, and freezing rain occurring in various regions, particularly from the Qinling Mountains to the Huai River [4] - Areas such as Hubei, Anhui, Jiangxi, Hunan, and Guizhou are forecasted to experience significant freezing rain, with accumulations of 5 to 10 millimeters [4] Group 3: Future Weather Outlook - The rain and snow are expected to weaken between January 20 and 21, but low temperatures will persist until around January 23, when a noticeable warming trend is anticipated [5] - After January 23, temperatures in southern regions may return to or exceed normal levels for this time of year, alleviating the severe cold conditions [5] Group 4: Public Safety and Preparedness - Authorities are advising the public to be cautious of potential secondary risks from the cold wave, including icy roads, damage to electrical and communication infrastructure, and agricultural frost [5] - The China Meteorological Administration is coordinating with transportation and energy departments to ensure safety and manage increased heating demands due to the cold [5]