It is widely recognized that community-based flood risk communication among residents, regional communities, and administrative authorities is central to effective flood risk management. A risk management process based on the Plan-Do- Check-Action (PDCA) cycle helps in sharing information about what is required for each community and in designing a plan that fulfills residents’ needs. To make disaster information services more familiar to end users, community-based risk communication based on the PDCA cycle is indispensable. However, it is also important to inform residents of the hydrological and rainfall conditions of not only the target area, but also of the surrounding areas because of the nature of the spatial and time scales of meteorological phenomena, as described below. Therefore, this study aims to develop tools to support community-based risk management that meets the needs of local residents for flood risk preparedness. Activities on flood risk communications in the central of the Kumamoto city, west of Ja- pan, began January 2006. In the first cycle of the PDCA cycle, the community based flood hazard map was produced as PLAN step. The flood prevention drill (DIG) practice was held as DO step. As a CHECK step, a flood evacuation drill was held, assuming that some roads blocked. Each participant brought the cellular phone equipped with GPS receiver in order to track the evacuation route. After the analysis of tracked data, questioanaire, and discussion, it is found that it was hard for elder people to go up the steep slope on foot inside the community. Throughout the risk communication with local residents, the major needs from local residents were as follows: 1) temporary evacuation spots should be established for each block 2) real-time information, especially that regarding inland flooding, is insufficient 3) ways to ensure the safety of vulnerable residents who need support during evacuation need to be considered. // To address the concerns of local residents revealed by these results, we developed support tools for risk management as part of the second PDCA cycle. The database management system consists of the master server installed at Kumamoto University and mirror server at the Kumamoto City Office. Realtime hydrometeological observation data, provided from the national government and Kumamoto Prefecture, were retrieved automatically. After analysis, the distribution of detail rainfall and water level displayed on web interfaces: with a resolution smaller than 5 km, detail enough to resolve the convective rainfall. An inland flood observation system was installed at the central of the Kosen community area. Precipitation measured using tipping-bucket rain gauge and water level monitored by water gauge and web camera. The local residents can get the real-time information by connecting their personal computer, cellular phone, and FM radio. The safety confirmation system was development as a tool for ensuring the safety of vulnerable people inside the community. First, an alert e-mail is sent automatically from the database server to decision makers. After receiving the alert email, the leader confirms the status of the vulnerable residents of each community block. Once all such vulnerable residents in a community block are evacuated safely, the community leader in charge will then send a confirmation e-mail using their cellular phone’s web interface. Next, the evacuation status of the local community is automatically updated on the Geographical Information System (GIS) in which the blocks that have started evacuation activities are surrounded by a yellow border, while the shaded blue areas denote blocks with all vulnerable residents already safely evacuated. After the test at the evacuation drill held in October 2009, it was found that the system basically worked well. The system will be expanded other communities in near future.