中东部气温回升 今明两天冷空气影响北方地区

Group 1 - The central meteorological observatory reported a significant warming trend in China's central and eastern regions on December 27, with daytime maximum temperatures rising by 4-6°C in some areas, and locally by 8-10°C [1] - A cold air mass is expected to affect northern regions from December 28 to 30, causing temperature fluctuations, with a decrease of 4-6°C in areas such as Inner Mongolia, northern North China, and the northeast, and locally by more than 10°C [1] - Wind conditions will also change, with 4-5 level north winds and gusts of 6-8 levels in the affected areas, including the Bohai Sea and Yellow Sea [1] Group 2 - On the morning of December 28, fog affected visibility in the Sichuan Basin, while air diffusion conditions in southern North China and Jianghan decreased compared to the previous day [3] - Light to moderate haze is expected in parts of southern North China, Huanghuai, and Jianghan during the day, with some areas experiencing heavy haze [3] - From December 30 to January 1, significant rain and snow are forecasted in eastern Tibet, eastern Northwest China, western Huanghuai, and western Jianghan, with light to moderate rain in eastern Southwest China, Jianghuai, Jiangnan, and South China [3] Group 3 - The national air pollution meteorological conditions forecast indicates varying pollution levels across different regions, with some areas experiencing severe pollution [4] - The national precipitation forecast shows expected rainfall amounts ranging from 0-250 mm in various regions, with specific areas projected to receive significant precipitation [5]