全国大部晴朗干燥模式持续 未来一周两股冷空气先后制造降温

Group 1 - The core viewpoint of the articles indicates that most parts of the country will continue to experience dry and sunny weather, with scattered rain and snow distribution over the next few days [1][2][6] - A strong cold air mass is expected to impact the country from December 10 to 13, leading to significant temperature drops across many regions, with a general decrease of 6 to 10 degrees Celsius, and localized drops reaching 12 to 14 degrees Celsius [4][7] - The current weather pattern shows that northern regions have recently experienced higher temperatures, with the maximum temperature line reaching as far north as southeastern Heilongjiang and the 10°C line extending to Beijing, Tianjin, and southern Liaoning [4][7] Group 2 - Over the next three days, precipitation will remain low nationwide, with rain and snow primarily affecting northeastern regions and parts of Xinjiang, Inner Mongolia, Guizhou, and Yunnan [2][6] - The upcoming cold air mass is expected to bring a large-scale rain and snow event to the central and eastern parts of the country starting from December 11, with some areas experiencing heavy precipitation [6][7] - The weak cold air currently affecting the northern regions will cause a temperature drop of 4 to 6 degrees Celsius, with localized areas experiencing drops of 8 degrees Celsius or more [7]