The FastEddy® team is pleased to announce the release of FastEddy® 5.0, the latest version of the community, open-source GPU-based model for large eddy simulation (LES) of microscale weather.

Designed for advanced accelerated computing architectures, FastEddy® delivers faster, higher-fidelity simulations of complex microscale flows, enabling broader use of large-eddy simulations across research and operational applications.

New capabilities in FastEddy® 5.0 include:

  • LES-to-LES nesting from FastEddy®
  • Downscaling and nesting from MPAS
  • Virtual tower capability for high-frequency output at specified locations

Users can explore the latest features in the FastEddy® 5.0 release notes, access the code through the GitHub repository, and get started with available tutorials. Community members are also encouraged to register for FastEddy® updates.

FastEddy® -  Nested mesoscale-to-LES-to-LES (3km to 50m to 10m) simulation results depicting vertical velocity at 10m above ground level showing a transient microfront at a southern New Mexico locale during an evening transition period on June 12, 2025 between 9:30 and 10:30 pm local time.