Abstract：By means of basic statistical methods,morphological analysis and comparative analysis of several cases,using MICAPS routine weather map data,provincial regional station data and sounding data,this paper analyzes the weather situation of hot thunderstorm weather on the edge of Jiangxi subtropical high.The results show that as obvious thunderstorm under subtropical high control type,attention should be paid to capturing the boundary convergence line (shear line) or ground convergence line.When the boundary layer convergence line has obvious southward pressure,it would occur strong convective weather such as strong thunderstorms and lightning,heavy precipitation near the convergence line.The thermal thunderstorms on the edge of subtropical high often cooperate with the convergence line (shear line).If there are more obvious shear lines in the multi-layers,the intensity and scope of thunderstorms will obviously expand,and even lead to strong weather such as heavy rainfall,rainstorms or heavy rainstorms.High-altitude trough is still an important influence system of thunderstorm at the edge of subtropical high.When low-altitude trough approaches,it may appear obvious convective weather due to the upward motion of the front of low-altitude trough.Under the weather background controlled or influenced by subtropical high,typhoon activities often bring strong thunder and lightning weather.
2020, Vol. 37 
