雪下到南方了！明后天大部气温继续偏低

Core Viewpoint - The strongest winter snow and ice weather has arrived, affecting multiple regions in China, with significant snowfall reported in several provinces and cities [1][2]. Weather Impact - Heavy snow has been observed in Henan, Hubei, Anhui, northern Jiangsu, and other areas, with some regions experiencing blizzards [1]. - Major cities such as Wuhan, Hefei, Nanjing, Shanghai, Hangzhou, and Nanchang have recorded snowfall, with notable accumulation in Hefei, Wuhan, and Nanjing [1]. Snow and Freezing Rain Dynamics - The variation in precipitation types, such as snow and freezing rain, is due to temperature differences at various atmospheric levels, leading to complex changes in precipitation forms [3]. - Snow occurs when the entire atmospheric layer is cold enough for snowflakes to reach the ground [4]. - Freezing rain occurs when snowflakes melt in a warm layer of air and do not freeze before reaching the ground [5]. Agricultural and Transportation Effects - Both snow and freezing rain can adversely affect agriculture and transportation, necessitating caution and preventive measures [6]. Temperature Trends - The current cold wave is expected to lead to significant temperature drops, particularly in southern regions, with the lowest temperatures forecasted to be around 0°C in southern Guizhou, northern Guangxi, southern Jiangxi, and southern Zhejiang [7]. - Most areas in both northern and southern China will experience temperatures significantly lower than the historical averages, with some southern cities like Fuzhou and Nanning seeing maximum temperatures just above 10°C [8].