A 0-2 hour nowcasting model of the strong-convection echo system is established on the IBM-PC microcomputer system in terms of the weather Doppler radar dataset. From the PPI images preprocessed with the model proposed, a group of patches of intense echoes of interset is singled out, from Which a set of eigenvalues is extracted and classified using the fuzzy cluster technique. With the aid of extrapolation of the track a nowcasting is prepared, whereby good results have been obtained on an objective basis.