During mid and late February of 2024, a strong cold surge, dust storm and various freezing weathers (snowstorm, sleet, freezing rain, rainstorm and severe convection producing large hail and damaging gust), associated with severe convection to the south, occurred in a large area over China. Multiple high-impact-weather events showed up during this extreme complicated process. In order to provide an introduction for the subsequent detailed and in-depth analysis and research of this process, in this article we discuss briefly the mechanisms and forecasting challenges of these high-impact-weather events, without exploration in details and in depth.