In this paper, two methods of precipitation probability forecast are introduced. One is multiple factorial analogous method, another statistic method of wuhan MAPS NWP.

• 介绍了两种降水概率预报方法，一种是根据多因子场相似原理作降水概率预报，另一种是用武汉区域气象中心的MAPS降水资料作降水概率预报。