Abstract
It is quite important to establish a technique to predict precipitation with high accuracy for next five hours, in order to properly manage and operate a dam. The statistical analysis based on the existing meteorological data as well as the observation at the site using Doppler radar allowed us to obtain necessary data and information for development of the precipitation prediction technique. We conducted the analysis of the precipitation specifications in the vicinity of the dam based on these research results, and developed the precipitation prediction technique with high accuracy for next five hours.