明起三股冷空气接力来袭！甘肃多地有降雪

Summary of Key Points Core Viewpoint - The weather in the eastern Northwest and Southwest regions of China will continue to experience rain and snow, with a temporary increase in precipitation in the middle and lower reaches of the Yangtze River. A series of cold air masses will lead to fluctuations in temperature starting tomorrow [1][6]. Group 1: Weather Conditions - Rain and snow are primarily concentrated in the eastern Northwest and Southwest regions, with small snow or sleet reported in parts of Qinghai, Gansu, Shaanxi, Sichuan, Chongqing, and Guizhou [1]. - The Central Meteorological Observatory forecasts small to moderate snow or sleet in various regions today, including parts of the southeastern Northwest, western Henan, and western Hubei [1]. - Tomorrow, light snow or sleet is expected in western Shandong, northeastern Sichuan Plateau, northern Guizhou, and southeastern Tibet, while light rain is anticipated in most of Jiangnan and southern Hubei [3]. Group 2: Temperature Trends - Following the recent cold wave, temperatures in the central and eastern regions have reached new lows for the winter, but a warming trend is expected to begin, particularly in northern areas [6]. - The highest temperature in Jinan, Shandong, is projected to reach 8°C today, which is nearly 4°C above the normal level for this time of year [6]. - Despite the warming trend, the southern regions will still experience slightly lower minimum temperatures compared to historical averages, with early morning and late evening temperatures remaining around 0°C [6]. Group 3: Future Weather Forecast - Three cold air masses are expected to impact the country from January 4 to 10, leading to temperature fluctuations, although their overall strength is relatively weak [6]. - After January 5, the cold feeling during the day in southern regions will lessen, but the minimum temperatures will still be low [6].