Abstract: Based on data from the Shijiazhuang SA Doppler weather radar, Xingtai sounding station, Fengyun FY2F satellite, and ERA5 reanalysis, we investigated a hail suppression operation in Handan, Hebei Province, on May 26, 2019, located in the eastern foothills of Taihang Mountain and analyzed the cloud feature variations in detail. The results showed that strong convection occurred in Handan due to the combined influence of a high-altitude trough, low-level shear lines, and high-level divergence. Particularly, 6 min after cloud seeding, the maximum vertically integrated liquid water content (VIL) of the seeded cloud decreased from 63.4 to 30.0 kg m⁻²; and 18 min after seeding, the height of intense echo center of the seeded cloud decreased from 9.0 to 2.7 km; 42 min after seeding, the maximum composite reflectivity decreased by 36.5 dBZ and the maximum echo top height decreased by 10.6 km; and 48 min after seeding, VIL, the height of intense echo center, maximum composite reflectivity, and maximum echo top height decreased by 97.6%, 100%, 57.7%, and 79.6%, respectively. The rate of decrease in each physical parameter of the seeded cloud was greater than that of a similar, unseeded cloud at a comparable development stage. The double-ratio analysis showed that 24 min after cloud seeding, the double-ratio value of each physical parameter was less than 1, indicating considerable hail suppression.