The International Conference on MAHASRI (Monsoon Asian Hydro-Atmosphere Scientific Research and Prediction Initiative) will be held at the International House in Tokyo Metropolitan University, Tokyo, Japan from 2-4 March 2016. Launched in 2006, MAHASRI is one of the Regional Hydroclimate Projects (RHPs) of the GEWEX (Global Energy and Water Exchanges Project) Hydroclimatology Panel (GHP). Its objective is to develop a hydrometeorological prediction system, particularly with a time scale up to a season, through better scientific understanding of Asian monsoon variability, and the Conference will center on achievements, impacts, and future prospects of MAHASRI and related projects.