中央气象台：华北中南部黄淮等地有霾

Summary of Key Points Core Viewpoint - The air quality in North China, Central South China, and the Huanghuai region is expected to experience light to moderate haze on January 4, with localized short-term heavy haze. From January 5, the haze will gradually dissipate due to weak cold air influence. For the upcoming week, most parts of the country will have good atmospheric diffusion conditions, with no persistent haze weather expected [1]. Group 1: Regional Forecasts - Beijing-Tianjin-Hebei and Surrounding Areas: On January 4, the central and southern parts will have general atmospheric diffusion conditions, with light to moderate haze in some areas and localized short-term heavy haze. From January 5, conditions will improve, leading to a gradual reduction in haze [3]. - Yangtze River Delta: From January 4 to 5, most areas will have general atmospheric diffusion conditions, with short-term light haze in parts of Jiangsu and Anhui, and moderate haze in some areas. Starting January 6, conditions will gradually improve due to cold air [4]. - Fenwei Plain: On the morning of January 4, the central and southern parts will have general atmospheric diffusion conditions, with light to moderate haze in Shanxi. Haze will gradually dissipate from the afternoon due to cold air [5]. Group 2: Other Regions - Central Hubei and Northern Hunan: Light haze is expected from January 4 to 6, with atmospheric diffusion conditions improving from January 7, leading to no significant haze [6]. - Pearl River Delta: The region will have good atmospheric diffusion conditions for the upcoming week, with no significant haze expected [6]. - Southwest Region: Most areas will have good atmospheric diffusion conditions, with only short-term light haze in parts of the southern Sichuan Basin [7]. - Northeast Region: The area will experience active cold air, leading to good atmospheric diffusion conditions, with light haze in some central areas during cold air intervals [8]. - Northwest Region: Most areas will have good atmospheric diffusion conditions, but parts of the northern Tianshan Mountains in Xinjiang will experience light to moderate haze, with localized heavy haze. Additionally, from January 8 to 9, some areas in eastern Xinjiang, western Gansu, western Inner Mongolia, Ningxia, and northern Shaanxi may experience dust storms [9].