While I have never been to Lawrence Livermore National Laboratory, I have been a fan of their VisIt visualization tool.
Empisys generated this movie using Weather Research and Forecasting (WRF) simulation data published by the University Center for Atmospheric Research (UCAR) in Boulder, Colorado. This weather model simulates a large hurricane in the Gulf of Mexico. The visualization was generated using Lawrence Livermore National Lab (LLNL) VisIt running on a Windows 2008 HPC Server R2 cluster with 64 processors.
It would be even better if they hadn’t used the default “rainbow” colormap. A blue-to-white one might have been better. Would have loved to see this done as a volume rendering instead.