It is difficult to judge and forecast flood risk on small-medium rivers, because the risk is related to various local factors such as channel network and land use. In this research, high-resolution flood inundation analysis model was utilized to confirm details of flood risk and a result of the analysis is transformed to local disaster information which is familiar to inhabitants (Local weather information). An availability of this method is checked and its relations to weather information are evaluated. As an example, this research taked an event of the Okuetu heavy rainfall, which happened on September in 1965 around Oono City and caused heavy damages. The practical disaster education with the local disaster information based on the results of flood inundation analysis was provided to some students in Yushunishi elementary school in Oono and we have checked the effect from the pre/post questionary surveys.