北京发布道路结冰黄色预警信号

Group 1 - The Beijing Meteorological Station issued a yellow warning for road icing, predicting snowfall from the early morning to the morning of December 23, with surface temperatures below 0°C leading to potential road icing in some areas [1][2] - Snowfall is expected to start in the western districts of Yanqing, Fangshan, and Mentougou, with the main impact on urban areas occurring in the latter half of the night, tapering off by around 8 AM on the 23rd [1] - Accumulation of snow in urban and plain areas is expected to be less than 1 cm, while some mountainous areas may see 1 to 3 cm of snow [1] Group 2 - The snowfall is anticipated to create slippery road conditions and reduced visibility, negatively impacting traffic during the morning rush hour on the 23rd [2] - Certain road sections are likely to experience snow accumulation and icing, increasing the risk of traffic congestion and accidents, particularly in mountainous areas, bridges, and highways [2] - After the snowfall, a north wind is expected to strengthen, with gusts reaching up to 7 levels in mountainous areas, necessitating caution when outdoors [2]