河南省焦作市一次局地强对流天气过程的分析

利用常规高空、地面资料和自动站资料、多普勒雷达资料等，从天气形势、物理机制、中尺度特征等方面入手，分析了河南省焦作市一次局地强对流天气的演变和成因．结果表明：这次强对流天气过程发生在高空槽后西北气流中，中高层干冷平流、低层暖湿平流的大气层结增强了对流不稳定的发展，地面中尺度辐合线是此次强对流天气的直接影响系统；CAPE的高值区与强对流天气区有较好的对应关系；多普勒雷达可以监测对流云团的发展和移动利用多普勒雷达资料能够提前预警强对流天气的发生．

A Strong Convective Weather Process in Jiaozuo City of Henan Province

By use of high altitude observation data, surface observation data and automatic meteorological station data,Doppler radar data,from the weather situation,the physical mechanism and mesoscale features,the author analyzed the effects of Jiaozuo a strong convective weather evolution and the causes. The results show that the strong convective weather process occured in the northwest flow in the upper trough. The high-level cold and dry advection, advection of low-level warm and moist atmosphere enhanced with the development of convective instability. The ground mesoscale convergence line was the strong convective weather direct effect system. There was a correspondent relations between CAPE high value of the area and strong convective weather area. Doppler rador can be used to detect the development of convective cloud, and Doppler radar material can be used for early warning strong convective weather happening.