全国大部持续升温多地暖超常年 春节假期前期冷空气将制造降温

Core Points - A significant warming trend is expected across most of the country from February 12 to 14, with temperatures reaching new highs for the year in cities like Jinan, Zhengzhou, Hefei, Nanjing, and Shanghai [1][3] - The highest temperature line of 10°C is projected to move northward to central Gansu, Inner Mongolia, and central Liaoning by February 13, while the 20°C line will reach southern Hebei and northern Shandong by February 14 [1] - Major cities such as Harbin and Shenyang are forecasted to experience their first temperatures above freezing and 10°C, respectively, while cities in southern regions may see temperatures rise to 28°C, resembling early summer conditions [3] Temperature Changes - The warming period will see temperatures in the northwest peak on February 13, while the central and eastern regions will reach their highs on February 14, with southern Jiangnan and South China potentially exceeding 25°C [1] - Following this warming trend, a new cold air mass will bring noticeable cooling from February 14 to 16, with temperature drops of 4 to 8°C expected across most areas, and some regions experiencing drops of 10 to 12°C [3] - The cooling process will begin in Gansu and Inner Mongolia on February 14, with significant temperature declines in northern regions on February 15, and southern areas, including Jiangnan, experiencing similar drops by February 16 to 17 [3]