This example visual program uses data which was supplied courtesy of NCSA at the University of Illinois, Urbana-Champaign. The data are a simulation of a severe thunderstorm. An isosurface shows cloudwater density, a colored plane shows temperature (and is in addition deformed by an amount proportional to the temperature), while red glyphs show the wind velocity near the base of the storm. You can control the isosurface value, the opacity of the isosurface, the vertical position of the plane showing temperature, and the magnitude of deformation of the plane.