The analysis results show that the continuous rainstorm circulation eigenvalue beyond hstorical record in June 1998. The heavy folld disaster in the north of Fujina is a component part of heavy flood disaster in the Yangtze River basin and the southern area of the Yangtze River, that usually occur in the same year. The example of successful prediction of a rainstorm in JUne 1998 offers forecast for a heavy flood disaster caused by heavy rainstorm.