The Earth Prediction Innovation Center (EPIC) and the Unified Forecast System (UFS) community are proud to announce the public release of the UFS Short-Range Weather (UFS SRW) Application version 2.1.0. This release is an update to the version 2.0.0 release from June 2022 and reflects a number of changes currently available at the head of the UFS SRW development branch. The Application is designed for short-range (up to two days) regional forecasts located anywhere on the globe. The new release includes the following updates:

• Conversion to a Python workflow (from the former shell workflow)
• Improved container support, including the option to run across compute nodes using Rocoto
• Updates to physical parameterizations within the Common Community Physics Package (CCPP) (see detailed description here)
• Support for the Unified Post Processor (UPP) to be run inline
• Addition of a multi-purpose code clean-up script (devclean.sh)
• Improved support for the METplus verification suite

The User's Guide, available here, has been updated to reflect these improvements to the Application, and numerous test cases with all associated data files are also available to the public here. Interested users can get support by submitting a question through the Q&A Category on the ufs-srweather-app GitHub Discussions page.

Known Issues

• When building a PDF of the v2.1.0 documentation locally, an error in the conf.py file causes the subtitle to read "Release v1.0." However, the contents of the documentation are correct for v2.1.0. If users want their PDF to reflect the correct version number, they can change line #30 of ufs-srweather-app/docs/UsersGuide/source/conf.py from release = 'v1.0' to release = 'v2.1.0' and rerun the command to generate the document.