大年初六寒潮沙尘雨雪齐至，返程路上注意安全

Group 1 - The central meteorological observatory has issued a blue alert for cold wave, predicting temperature drops of 6°C to 10°C in regions such as eastern Inner Mongolia, Heilongjiang, and Jilin from 14:00 today to 08:00 tomorrow, with some areas experiencing drops over 12°C [3] - Heavy snow and blizzards are expected in northeastern Inner Mongolia, northern Heilongjiang, and high-altitude areas of central Shaanxi, while regions in central and western Jiangnan and eastern Guizhou may face heavy rain, accompanied by thunderstorms and hail [4] - A blue alert for sandstorms has been issued, indicating that areas including eastern Xinjiang, western Inner Mongolia, and several provinces such as Shanxi and Henan may experience dust or floating dust in the next two days [6] Group 2 - Low temperatures can lead to frostbite and hypothermia, emphasizing the need for proper cold weather preparation before travel [11] - For self-driving in low temperatures, it is advised to preheat vehicles and monitor battery levels to ensure safety [11] - Vehicle checks should include tire pressure, brake systems, antifreeze, oil, and battery status to ensure vehicles are in good condition for travel [18]