龙口市一次强对流天气过程分析

本文利用常规高空资料、地面实况资料和雷达资料,从天气形势、物理量场和雷达回波变化特征等方面对2020年5月23日发生在龙口市的一次冰雹天气过程进行了分析。结果表明:此次降雹过程主要是在冷涡横槽和地面气旋的共同影响下发生的;充足的水汽条件,上干冷下暖湿的不稳定层结条件以及低层辐合、高层辐散动力条件是强对流天气产生的基础。可充分利用冰雹天气在雷达反射率和VIL图上的明显特征来做临近的预报预警服务。

Analysis of a severe convective weather process in Longkou City

In this paper, a hail weather process occurred in Longkou City on May 23, 2020 was analyzed by using conventional high altitude and ground observation data and radar data. The results show that the hail process mainly occurred under the joint influence of cold vortex transverse trough and ground cyclone, sufficient water vapor condition, upper dry and cold weather The warm and humid unstable stratification conditions and the dynamic conditions of convergence and divergence at the upper level are the basis of severe convective weather. We can make full use of the obvious characteristics of Hail Weather on radar reflectivity and VIL map to do the near forecast and early warning service.