小雪、中雪、雨夹雪、冻雨！甘肃未来几天天气→

Group 1 - The weather forecast indicates small snow or sleet in cities such as Dingxi, Longnan, Tianshui, Pingliang, and Qingyang from January 18 to January 19, with some areas experiencing moderate snow and freezing rain [1] - A significant temperature drop of 6-8°C is expected in the southeastern regions of Longzhong and Longdong from January 18 to January 20, with local areas potentially seeing a drop of over 10°C, indicating a cold wave [1] - From January 20 to January 21, Longnan, Tianshui, Pingliang, and Qingyang will experience cloudy weather, while the rest of the province will be mostly sunny with some clouds [1] Group 2 - The temperature forecast for various cities includes: Lanzhou (-8°C to -1°C), Jiayuguan (-21°C to -13°C), Jinchang (-16°C to -10°C), and Tianshui (-3°C to 0°C) [2] - Other cities such as Wuwei, Zhangye, and Pingliang are expected to have varying weather conditions, with temperatures ranging from -17°C to -3°C [2] - Longnan is forecasted to have rain mixed with snow, with temperatures between 2°C and 7°C [2]