UPP content removal

Removal of Content Advisory - April 2024

Advisory to Unified Post Processing System (UPP) users: As of the beginning of April 2024, all support assets for Unified Post Processing System (UPP) will be removed from the DTC website. Users should download all reference materials of interest prior to April 2024.

Unified Post Processor (UPP)

Seattle clouds
Notice: User support of UPP is being transitioned to the Earth Prediction Innovation Center (EPIC). Please see EPIC’s new webpage for the latest information on UPP: epic.noaa.gov/unified-post-processor
This website will be removed April 1, 2024.


Welcome to the users home page for the NCEP Unified Post Processing System (UPP). UPP was developed at the National Centers for Environmental Prediction (NCEP) and is used operationally for models maintained by NCEP, including the Global Forecast System (GFS), GFS Ensemble Forecast System (GEFS), North American Mesoscale (NAM), Rapid Refresh (RAP), High Resolution Rapid Refresh (HRRR), Short Range Ensemble Forecast (SREF), and Hurricane WRF (HWRF) applications. It is also used in the Unified Forecasting System (UFS), including the Rapid Refresh Forecast System (RRFS), Hurricane Application Forecasting System (HAFS), and the Medium Range Weather (MRW) and Short Range Weather (SRW) Applications. For more information regarding the UFS, please visit https://ufscommunity.org/.

The Developmental Testbed Center (DTC) provides assistance with facilitating research-to-operations (R2O) code development and community members are encouraged to provide new features to DTC for proposal into operational code.

At this time the DTC provides community support for UFS based forecasts.  Support for WRF based applications has been retired, please see the archived UPP for WRF website for information.