内蒙古风雪降温齐至 局地阵风可达9级以上

Group 1 - The core viewpoint of the article highlights the significant weather changes in Inner Mongolia, including a warm period followed by a strong cold front bringing temperature drops and severe weather conditions [2][3]. - Since the Spring Festival, temperatures in Inner Mongolia have been steadily rising, with many areas experiencing daily maximum temperatures above 10°C, creating a spring-like atmosphere suitable for travel [2]. - A cold air mass began affecting the region on February 21, leading to temperature drops of 4 to 14°C across various areas, with localized drops exceeding 14°C [2][6]. Group 2 - The article reports that due to sandstorm weather, air quality in many areas of Inner Mongolia has reached severe pollution levels [3]. - A yellow wind warning was issued by the Inner Mongolia Meteorological Bureau, indicating average wind speeds of 8 levels and gusts reaching 9 to 11 levels in several cities [3]. - The upcoming three days are expected to see continued strong winds, snowfall, and temperature drops, which may adversely affect road conditions and require drivers to stay informed about the latest traffic updates [3][8].