Vis5D is a system for interactive visualization of large 5D gridded data sets such as those produced by numerical weather models. The user can make isosurfaces, contour line slices, colored slices, volume renderings, etc. of data in a 3D raster map, then rotate and animate the images in real time. There's also a feature for wind trajectory tracing, a way to make text anotations for publications, support for interactive data analysis, etc.