今冬首场大范围寒潮来袭，京津冀是否会出现大范围雨雪？

Group 1 - The central meteorological observatory predicts the first cold wave of the second half of the year in northern and central eastern China from November 14 to 17, with significant temperature drops and strong winds expected [1][2] - During the cold wave, temperatures in most northern and central eastern regions are expected to drop by 6 to 10 degrees Celsius, with localized drops of 12 to 14 degrees Celsius [2] - Rain and snow are anticipated in specific areas, including light to moderate rain in southeastern Gansu, southern Shaanxi, western Huanghuai, and the Sichuan Basin, as well as light to moderate snow in parts of Inner Mongolia and northeastern regions [2][3] Group 2 - The cold air mass is expected to be strong, and after the cold wave, two additional weak cold air masses will follow, leading to further temperature drops of 4 to 6 degrees Celsius around November 20 [3] - Most of the country has experienced temperatures 1 to 3 degrees Celsius above the historical average over the past 10 days, with some areas in Inner Mongolia and the Tibetan Plateau exceeding 4 degrees Celsius above average [3] - The public is advised to adjust clothing and take precautions against the cold and potential adverse effects of rain and snow on transportation [3]