Core Viewpoint - A significant temperature increase is expected across many regions in China, with some areas experiencing temperatures 10°C higher than usual for this time of year, particularly from January 14 to 16 [1][3]. Group 1: Temperature Changes - A cold air mass is currently affecting China, but it will weaken soon, leading to a warming trend starting tomorrow [3]. - The warming will last until January 16, with temperature increases of 8°C to 14°C in regions from North China to the Yangtze River [3]. - High temperatures during this period may reach around 15°C in North China and the Huanghuai region, while areas along the Yangtze River could see temperatures close to or exceeding 20°C [3]. Group 2: Nighttime Temperatures - Despite the daytime warming, nighttime temperatures will rise more slowly, resulting in significant diurnal temperature variations, often exceeding 10°C or even 15°C [3]. Group 3: Precipitation Patterns - Most of the country will maintain a dry and sunny weather pattern, with frequent precipitation expected in northeastern regions and parts of Inner Mongolia [4]. - A snowfall event is anticipated in northeastern areas and eastern Inner Mongolia from tonight until January 14, with potential heavy snowfall in southeastern Heilongjiang [4]. - From January 16, increased moisture and cold air will lead to more precipitation in central and eastern regions, with light rain expected in southern areas [4][5].

Group 1 - The core viewpoint of the articles indicates that a significant temperature rise is observed in most parts of China, with temperatures exceeding 15°C in southern regions, but two cold air masses are expected to bring temperature drops starting today until the New Year holiday [2][3][7] - The temperature in the central and eastern regions has risen significantly, with increases of 4 to 10°C, and the 0°C line has moved northward to southeastern Inner Mongolia [2][3] - The highest temperature in Wuhan is expected to reach 17°C today, while the lowest will be only 2°C, indicating a substantial day-night temperature difference [2] Group 2 - The weather is expected to remain dry in most parts of the country today and tomorrow, with little rain or snow, but precipitation is forecasted to increase starting the day after tomorrow [3][5] - Snowfall is expected to develop in northeastern regions today, with small to moderate snow being the primary form of precipitation [3][4] - By the day after tomorrow, rain and snow will expand from the southwestern regions to parts of the northwest, Jianghan, and Huanghuai [5][7]

Group 1 - The overall weather pattern indicates a transition from less precipitation to increased rainfall, particularly in southern regions starting tomorrow [2][5] - The central meteorological authority forecasts significant temperature fluctuations due to the influence of active cold air masses, with a notable drop of 4 to 8 degrees Celsius expected in the central and eastern regions [7][9] - April was recorded as the warmest on record for many regions, with average temperatures in several provinces being the highest for the same period historically [7] Group 2 - The upcoming weather changes will lead to strong convective weather, including heavy rainfall and thunderstorms, particularly affecting the southern regions [2][5] - Specific areas such as Hainan, Guangdong, and parts of Yunnan are expected to experience heavy to torrential rain, with localized areas facing severe weather conditions [2][3] - The temperature in major cities like Zhengzhou is projected to fluctuate significantly, with a rise to 37 degrees Celsius today, followed by a drop to 24 degrees Celsius tomorrow [9]