Analysis of Heavy Convection Process of Jiangxi Rainstorm on April 25,2022
By using the conventional weather map,rainfall,gale and other meteorological observa-tion data,Jiangxi WebGIS radar mosaic and other platform data,the severe convective weather process in the central and northern part of Jiangxi on April 25,2022 was analyzed.The results are as follows:short-term strong precipitation,thunderstorm gale,strong lightning,and 146 station times of strong wind above grade 8(extremely strong wind speed of 29.6 m/s)were the main weather conditions of this severe convective process;"Upper dry and lower wet",low level conver-gence line,upper level low trough,upper level divergence,strong low level southwest jet,super low level southwest jet,and surface cyclone are the main influence systems of this severe convective weather process;The 45～55 dBz banded strong echo mainly causes short-term heavy precipitati-on.The trend of the strong echo zone is consistent with the moving direction of the echo monomer.The echo intensity reaches 55 dBz and continues.It is the main echo feature that causes extreme heavy precipitation above 50 mm/h;When the environmental and geographical conditions are supe-rior,the places where the strong band echo of more than 45 dBz passes are likely to lead to thunder-storms and gales,and the combined STI movement information has obvious indication significance for the movement trend of the strong band echo in the next 1h.
rainstorm in Jiangxithunderstorm and galesevere convective weatherradar echo
万方数据
维普
