后天就是四九了

Core Viewpoint - The article discusses the unusual weather patterns in China, highlighting a significant warming trend during the "San Jiu" period, which is typically the coldest time of the year, and anticipates a sharp temperature drop as the "Si Jiu" period approaches [1] Weather Analysis - A large-scale warming has been observed across China, with temperatures in many regions feeling more like spring than winter during the "San Jiu" period [1] - The winter front has reached southern China, with areas typically without winter transitioning from autumn to spring [1] - The warming trend is expected to continue for the next couple of days, with cities like Nanjing, Hefei, Wuhan, Hangzhou, and Changsha experiencing maximum temperatures exceeding 20°C, potentially breaking mid-January records [1] Upcoming Weather Changes - Starting from January 17, a strong cold air mass will impact most of China, leading to a general temperature drop of 10°C [1] - In the Huai River basin and the middle and lower reaches of the Yangtze River, the cumulative temperature drop may exceed 20°C, with cities like Zhengzhou, Wuhan, Nanjing, and Hefei facing rapid cooling [1] - Rain and snow are expected from January 19 to 20, causing a stark contrast in weather conditions from the previous warmth to a damp and cold environment [1]