Case Analysis of the Response Mechanism to Abrupt Severe Convective Weather in Shenzhen

Severe convective weather tends to occur suddenly within a local range and its duration is relatively short. Thus, it is difficult to forecast such disastrous event. At present, the existing short-term forecasting technology has limited ability to forecast severe convective weather such as thunderstorms, gales and short-time severe rainfalls. Shenzhen Meteorological Bureau keeps on exploring effective response mechanisms to severe convective weather based on the existing short-term forecasting technology and meteorological modernization achievements. Here we take the first severe convective weather process of Shenzhen in 2021 as a case to discuss the effective response to and defense mechanism of abrupt severe convective weather. This severe convective weather event brought heavy rainfall but lasted for a short period of time, so it was difficult to provide accurate forecast. Moreover, it occurred during May Day Holiday and brought high pressure on safety precautions. Shenzhen Meteorological Bureau took measures such as “integrated risk judgment, three-level pre-warning defense line, and phased accurate release” to effectively solve the “last mile” problem of meteorological disaster warning information transmission. Two mechanisms of coordinated command and prompt joint defense have also been established and improved for minimizing the impact of meteorological disasters. There were no major disasters or casualties caused by heavy rainfall and gales during the severe convective weather process.