Group 1 - A significant snowfall and temperature drop occurred in Manas County, Xinjiang, affecting road traffic [2][3] - The G312 national road in Manas County experienced slippery conditions and reduced visibility due to continuous snowfall, leading to increased traffic pressure [3] - As of November 25, the snow depth in Manas County reached 10 centimeters, with further snowfall expected and nighttime temperatures predicted to drop to -7°C [4] Group 2 - From November 23 to 24, a strong cold air mass impacted Gansu Province, resulting in widespread snowfall, severe temperature drops, and strong winds [5] - A total of 44 counties in Gansu reported snowfall, with the deepest accumulation reaching 16 centimeters [6][8] - The snowfall also affected agricultural facilities, particularly greenhouses in Gulang County, prompting local workers to clear the accumulated snow [10] Group 3 - From November 24, Shanxi Province experienced strong winds and temperature drops, with localized gusts reaching 7-9 levels and dust or sand [13] - Areas such as Taiyuan and Yangquan reported winds exceeding level 7, with minimum temperatures dropping to -10°C [15] - The Shanxi Meteorological Station forecasted continued strong winds and temperature drops, with outdoor temperatures in northern high-altitude areas potentially reaching -15°C [15]