Software Release: Announcing UPP V4.0 Release

Dear UPP Community,

The Developmental Testbed Center (DTC) is pleased to announce the release of the Unified Post Processor Version 4.0.

The UPP has a new webpage! Please update your bookmarks.

Major Improvements and New Features include:

  • Removal of build dependency on the WRF code package
    • There is no longer a requirement to build WRF prior to building UPP; therefore, you’ll no longer receive a prompt for the location of a WRF build when compiling the UPP.
  • Upgrade of the Community Radiative Transfer Model (CRTM) to V2.2.3
    • Users should expect UPP synthetic satellite product results to change slightly due to minor changes in source code and coefficient files.
  • Deprecated support for WRF-NMM binary model output and NEMS-NMMB model output
    • The routines for reading these model outputs have been removed and/or are no longer maintained.

Additional release notes:

  • Continued support for processing WRF-ARW model output in NetCDF format.
  • Bug fixes applied as necessary.
  • Documentation updated (including the UPP users website, online tutorial and Users Guide).
  • The release has been synced with the operational UPP version v8.0.0 at NCEP.
  • A Docker container has been made available with limited functionality.

To download this version of the code or to view details about this release including a list of updates, modifications and bug fixes, please visit:

Users can sign up for updates regarding the UPP software package at:

We would like to thank contributors from NCEP, the DTC, and from the user community who have contributed to this release.

Please send questions or comments related to the UPP software package to:

This release is the result of the joint efforts of NOAA/NCEP and DTC through the support of NOAA and the National Science Foundation (NSF).


Best Regards,

The UPP Team