This book provides an introduction to recent developments in the area of hydrome- orological forecasting, with a focus on water-related applications of meteorological observation and forecasting techniques. The Encylopaedia Britannica de?nes hydrometeorology as a branch of met- rology that deals with problems involving the hydrologic cycle, the water budget and the rainfall statistics of storms...(continued). The topic spans a wide range of disciplines, including raingauge, weather radar, satellite, river and other monitoring techniques, rainfall-runoff, ?ow routing and hydraulic models, and nowcasting and Numerical Weather Prediction techniques. Applications include ?ood forecasting, drought forecasting, climate change impact assessments, reservoir management, and water resources and water quality studies. The