【摘要】 利用多源气象资料，通过业务技术标准、规范及方法，对2024年广西暴雨天气及极端性进行分析评估。结果表明：（1）2024年广西暴雨日105 d，其中局地性暴雨日83 d，区域性以上暴雨日22 d。区域性暴雨过程9次。区域性以上暴雨日及区域暴雨过程多于常年。（2）国家站点极端暴雨44站次，区域性极端暴雨日1 d，极端暴雨过程1次，多于常年。5月19日小时雨量破广西极值，9月上旬出现登陆华南最强秋台风。（3）造成暴雨的西风带系统多于热带东风系统，桂北暴雨灾害频次高于桂南，与常年一致。（4）钦州市龙门港小时雨量破广西纪录，站点极端暴雨部分物理量异常度≥2σ，远高于近30 a同期气候态平均值，关键物理量异常度指标可为站点极端暴雨预报提供参考。更多还原

【Abstract】 Based on multi-source meteorological data, the rainstorm events and their extremes in Guangxi in 2024 are analyzed and evaluated by means of operational technical standards, specifications and methods.The results show that:(1) in 2024, there were 105 d of rainstorm days in Guangxi, including 83 d of local rainstorm days and 22 d of regional rainstorm days, and there were 9 regional rainstorm processes. The number of regional rainstorm days and regional rainstorm processes is higher than normal.(2) There were 44 extreme rainstorms occurred in national stations, 1 d of regional extreme rainstorms, and 1 extreme rainstorm process,which is more than normal. The hourly rainfall on 19 May broke the extreme value in Guangxi, and the strongest autumn typhoon made landfall in South China in early September.(3) The rainstorm is caused by more westerly systems than tropical easterly systems, and the frequency of rainstorm disasters in northern Guangxi is higher than that in southern Guangxi, which is consistent with the normal year.(4) The hourly rainfall at Longmen Gang station in Qinzhou City broke the record of extreme rainstorms in Guangxi, and some of the physical anomalies were higher than 2 σ, much higher than the average value of the climate state in the same period of the last 30 a. Therefore, the key physical anomalies can be used as a reference for the forecast of extreme rainstorms at the station.更多还原