The ufs-weather-model repository contains the model code and external links needed to build the Unified Forecast System (UFS) model and associated components.

A Getting Started section leads you through a quick example. A Graduate Student Test is also available for students, postdocs and others to provide feedback on the usability of the UFS by running through a series of experiments and then filling out a questionnaire about the experience. Participate now!

UFS can be configured into multiple applications — to-date, two have been formally released to the community: the Medium-Range Weather (MRW) Application and, more recently, the Short-Range Weather (SRW) Application. The table below provides links to App user guides, code repositories and wikis.

Release Name Release Date Release Description
UFS Short-Range Weather Application 2.0

GitHub Wiki
GitHub Repository
Users Guide
06/23/2022 The SRW Application v2.0.0 includes a prognostic atmospheric model, pre- and post-processing, and a community workflow for running the system end-to-end. These components are documented within this User’s Guide and supported through a community forum (https://forums.ufscommunity.org/). New and improved capabilities for this release include the addition of a verification package (METplus) for both deterministic and ensemble simulations and support for four Stochastically Perturbed Perturbation (SPP) schemes. Future work will expand the capabilities of the application to include data assimilation (DA) and a forecast restart/cycling capability.
UFS Short-Range Weather Application 1.0.1

GitHub Wiki
GitHub Repository
Users Guide
09/16/2021 Release date: 09/16/2021 Bug fix release. There is a full description of the v1.0.1 release here.
UFS Short-Range Weather Application 1.0.0

GitHub Wiki
GitHub Repository
Users Guide
03/04/2021 The UFS Short-Range Weather (SRW) Application targets predictions of atmospheric behavior on a limited spatial domain and on time scales from less than an hour out to several days. The SRW Application v1.0 release includes a prognostic atmospheric model, pre- and post-processing, and a community workflow for running the system end-to-end. More details are provided here.
UFS Medium-Range Weather Application 1.1.0

GitHub Wiki
GitHub Repository
Users Guide
10/06/2020 Minor release with upgrades and bug fixes. There is a full description of the v1.1.0 release here.
UFS Medium-Range Weather Application 1.0

GitHub Wiki
GitHub Repository
Users Guide
3/11/2020 The UFS Medium-Range Weather Application targets predictions of global atmospheric behavior out to about two weeks. This application includes a user-friendly workflow, with pre-processing (preparation of inputs), a forecast model, and post-processing. There is a full description of this release here.