Flood simulation data of a 100-year designed storm in 656 catchment areas of Switzerland This dataset contains 656 catchment areas as well as their corresponding flood simulations created by CADDIES model (Guidolin et al., 2016) Among all the catchment areas, 649 were collected from a 90km x 65km region near the Canton of Zurich, Switzerland. These catchment areas are labeled as the "main dataset" The rest 7 catchment areas were from the city of Geneve and Lausanne, Switzerland. These catchment areas are labeled as the "validation dataset" Each catchment area consists of three rasters: the elevation raster, the water depth raster and the flow velocity raster. All the rasters are ASC format and were compressed using gzip. The coordinate system of the rasters are LV03. All the elevation data were collected from the GeoVITe geodata service of ETH Zurich