未来一周气温先升10℃再降12℃，多地暖得像3月

Group 1 - The core viewpoint of the articles indicates a significant warming trend across most regions of China, with temperatures rising by 4-10°C in many areas, particularly in the northeast and southwest [1][2] - From February 5 to 7, a cold air mass will affect the central and eastern regions, leading to a temperature drop of 6-12°C, with some areas experiencing drops of 12-16°C [1][4] - The highest temperatures are expected to reach around 15°C in northern regions and 20°C in southern regions, resembling typical mid-March weather [1][2] Group 2 - The warming trend is particularly pronounced between the Yellow River and Yangtze River, with some areas seeing temperature increases of 4-8°C, and cities like Zhengzhou experiencing temperatures above 10°C [2] - The central meteorological authority forecasts that precipitation will be scarce in the central and eastern regions, with rain and snow mainly occurring in Xinjiang, Tibet, Qinghai, and Sichuan [6] - Air quality concerns are raised due to stagnant weather conditions in regions like North China and the Huanghuai area, leading to light to moderate haze, and in some areas, heavy haze [3]