元旦假期将有强冷空气影响我国 局地累计降温近20℃

Core Viewpoint - A significant warming trend is occurring across most of China, expected to last until December 29, 2025, followed by a strong cold air mass that will lead to temperature fluctuations [1][3][5]. Group 1: Temperature Trends - The warming trend will see northern regions reaching high temperatures, with the 0°C line moving unusually north into central Jilin, and southern regions experiencing temperatures above 20°C [1]. - After the warming period, two cold air events are forecasted, with temperatures in northern areas dropping by 4-6°C, and some regions in Inner Mongolia and Northeast China experiencing drops of over 10°C [3]. - A strong cold air mass is expected to impact central and eastern regions from December 30, 2025, to January 3, 2026, causing temperature drops of 6-8°C, with local areas experiencing drops exceeding 10°C [5]. Group 2: Regional Impacts - The Northeast region will experience the most significant temperature fluctuations, with current temperatures being 8-10°C above the average for late December, but expected to drop by 10-20°C by January 1 [7]. - Southern regions will also see notable temperature changes, with maximum temperatures near 20°C before the cold air arrives, dropping to single digits during the New Year holiday [8]. - The cold air mass will also bring widespread rain and snow from December 30 to January 3, affecting various regions including the Northwest, North China, and parts of the South [8].