This paper focuses on the risk communication channels, reception, understanding, and responses of fish cage farmers along Upper Nan River where water infrastructures are located upstream. The study employs a mixed method approach, including the qualitative research to explore the experiences, responses and perspectives toward risk communication mechanisms of the past extreme events, and the quantitative research to validate the hypotheses of the factors affecting risk communication responses such as personal background of the fish farmers, the farming characteristics, and the risk communication system itself. The strength of this study is that it applies two predictive analytical softwares: Limdep and SPSS to extract the information from data gathered from field survey in order to determine and predict future trend of risk communication responses of fish farming after receiving dam operation water release message.