Abstract: Using FY-4A satellite Lightning Mapping Imager (LMI),Advanced Time of Arrival and Direction (ADTD) lightning location data,conventional sounding,regional automatic stations,Doppler weather radar,and ERA5 reanalysis data,this study analyzes the lightning characteristics during a severe rainstorm in Hebei province in July 2023.Results show differences in spatiotemporal distribution between the two lightning datasets,with LMI detecting fewer daytime and more nighttime flashes,approximately 1/8 of ADTD detections.Rainfall distribution differs from lightning density distribution,with ADTD detecting high ground flash density in central-eastern Hebei,while accumulated rainfall exceeding 400 mm occurred in western Hebei,consistent with the frequency distribution of echoes above 35 dBZ.The correlation between rainfall intensity and lightning frequency is insignificant.Lightning activity was weak during the heavy rainfall period of July 29-30,but significantly intensified from July 31 to August 1 as the echo top height increased and the ice-phase layer thickened.Lightning distribution closely correlates with the vertical structure of strong echoes above 45 dBZ and particle distribution.