北京鹅毛大雪登热搜？未来几日大部地区寒潮雨雪天气持续！

Group 1 - The core viewpoint of the article highlights the significant snowfall in Beijing, characterized by large, fluffy snowflakes, attributed to a typical backflow snowfall process in North China, influenced by cold air from the Bohai Bay bringing moisture to the region [1] - The snowfall is expected to peak from January 18 to 21, with a cold wave affecting most parts of China, leading to a drop in temperatures and widespread rain and snow [1][3] - The Central Meteorological Administration has issued a blue alert for the cold wave, indicating that temperatures will continue to decrease across various regions [1][3] Group 2 - From January 18 to 21, the central and eastern regions of China will experience a significant drop in temperatures, with average daily or minimum temperatures falling by 6°C to 12°C, and in some areas, the drop could reach 16°C or more [3] - Specific regions such as southern Huanghuai, western Jianghuai, eastern Jianghan, and parts of Jiangnan are expected to see temperature declines of 12°C to 14°C [3] - The weather forecast indicates that from January 18 at 8 AM to January 20 at 8 AM, temperatures in several provinces including Gansu, Inner Mongolia, and Shaanxi will decrease by 6°C to 10°C, with some areas experiencing drops of 10°C to 14°C [3][5] Group 3 - The article notes that the rain and snow weather process will affect the central and eastern regions of China, with complex precipitation states including rain, snow, and freezing rain expected in the Qinling-Huaihe region [5] - Areas such as southern Shaanxi, central and southern Henan, and western Hubei are forecasted to experience heavy snow or blizzard conditions, while freezing rain is anticipated in parts of Hunan, Guizhou, and Chongqing [5] - Meteorological experts emphasize the need to pay attention to the impacts of the cold wave and rain-snow weather on urban transportation, energy supply, and public health [5]