In the nesting model, the initial field is from the forecast field by the Mesoscale Analysis and Process System (MAPS) Model, which indicated the status of stratified atmosphere over 77 counties in Hubei Province. In the one- dimension cumulus model, the disturbance parameters are determined by the analysis of synoptic pattern. The non-catalyzed/catalyzed precipitation can be simulated with the nesting model, and the catalyzing potential of cumulus of the 77sites is obtained respectively.