大气是航空飞行活动中人类与自然的第一界面,虽然航空器性能不断改进,导航、助航及监视能力也在逐步提高,但由于航班量的迅速增长,不利天气对飞行安全与效益的影响,也随着航班量的增加而被放大。从安全角度分析,大约有四分之一的飞行事故与不利天气有关。从效益角度分析,在所有不正常航班总量中,天气原因所造成的不正常航班量居第三位。在各种不利天气因素中,低云和低能见度是最大的罪魁祸首。本文通过对几起因低云引起的飞行事故的分析,试图从航空气象服务角度和机组角度总结一些经验和教训,意在为以后的飞行提供前“机”之鉴。 Atmosphere is the first interface between mankind and nature in aviation flight activities. Although aircraft performance is continuously improving, navigation, navigation aids and surveillance capabilities are gradually increasing. However, due to the rapid growth of flights and the adverse weather impact on flight safety and efficiency, It is also magnified as the volume of flights increases. From a security perspective, about a quarter of flight accidents are related to adverse weather conditions. From a benefit point of view, among all the irregular flights, the number of irregular flights caused by the weather was the third highest. Among various adverse weather conditions, low clouds and low visibility are the biggest culprits. Based on the analysis of several flight accidents caused by low clouds, this paper tries to summarize some experiences and lessons from the aspects of aviation meteorological service and crew. It is intended to provide a reference for future flights.