视频丨大风、雨雪天气将至！这些地区需注意出行安全与防寒保暖

Core Viewpoint - A cold wave is expected to impact most parts of China from January 17 to 21, bringing significant temperature drops and severe weather conditions, particularly in southern regions [1][5]. Group 1: Temperature and Weather Impact - The temperature across most of China is forecasted to drop by 6 to 10 degrees Celsius, with certain areas experiencing drops exceeding 12 degrees Celsius, accompanied by strong winds of 4 to 6 levels, and gusts reaching 7 to 9 levels [1]. - The cold wave will first affect northern regions, including Xinjiang, Gansu, and Inner Mongolia, before moving to central and southern areas by January 20 to 21 [2]. Group 2: Rain and Snow Forecast - A widespread rain and snow event is anticipated in central and eastern China from January 17 to 21, with significant snowfall expected in regions such as the eastern Northwest, southern North China, and parts of the Yangtze River basin [5]. - Accumulated snowfall is projected to reach 12 to 15 millimeters in many areas, with localized regions in the Qinba Mountains potentially exceeding 20 millimeters [5]. Group 3: Weather Warnings and Public Safety - Meteorological experts warn of risks associated with heavy snow and low-temperature rain and ice in several provinces, advising the public to take precautions for travel safety and agricultural protection [8]. - The public is urged to stay informed about weather forecasts and to avoid high-risk travel during the cold wave period [11].