未来十天江淮江汉等地降水量偏多 5-7日冷空气将影响中东部地区

Core Viewpoint - The weather forecast indicates significant variations in precipitation and temperature across different regions of China over the next ten days, with cold air expected to impact the central and eastern parts of the country [1][4]. Precipitation Summary - In the past ten days (January 22-31), regions such as the western Huanghuai, Jianghuai, Jianghan, and most of Jiangnan experienced cumulative precipitation of 5-20 millimeters, with some areas in northeastern Jiangnan receiving 30-40 millimeters. Compared to the same period in previous years, precipitation was above average in the aforementioned regions, while most other areas saw below-average rainfall [1]. - The forecast for the next ten days (February 1-10) predicts that Jianghuai, Jianghan, western and northern Jiangnan, southwestern China, and southeastern Tibet will receive 5-20 millimeters of precipitation, with localized areas in northern Jiangnan expecting 25-40 millimeters. Other regions like northern Xinjiang and parts of Heilongjiang and Jilin may see 3-5 millimeters, with some areas reaching around 10 millimeters [1][3]. Temperature Summary - Average temperatures in the past ten days were 1-2°C lower than the historical average in regions such as central and eastern Inner Mongolia, most of Northeast China, and parts of North China. Some areas in central and southern Northeast China experienced temperature drops of 4-6°C. Conversely, regions like northern Xinjiang and parts of the northwest, eastern Jiangnan, and eastern Yunnan saw temperatures 1-3°C higher than average [1][3]. - The upcoming ten days will see average temperatures in central and eastern regions drop by 4-8°C due to cold air, with some areas in northeastern China and northern Jiangnan experiencing drops exceeding 10°C. Most other regions will have temperatures 1-3°C above the historical average, particularly northern Xinjiang, which may see increases of over 4°C [4]. Weather Events - From February 5-7, cold air will affect most of the central and eastern regions, leading to a temperature drop and light to moderate rain in southern areas, with some regions experiencing rain turning to sleet or snow [4]. - By February 9, areas in the northwest, Huanghuai, and Jianghan may see sleet or snow, while Jianghuai, Jiangnan, and northern Huannan will experience light rain, with localized areas receiving moderate rain [4]. Air Quality - From February 1-4, light to moderate haze is expected in southern North China, central and western Huanghuai, and Jianghan. However, starting February 5, the haze is expected to gradually dissipate due to the influence of cold air [7].