Version 3.3 of the WRF Pre-Processing System (WPS) was released on April 6, 2011.

WPS Version 3.3

New features and bug fixes

• New capability to initialize the SST field for inland water bodies using a separate manufactured SST field (e.g. diurnally averaged skin temp)
• New ability to mask fields based on inequality relations in metgrid (with contributions from Daniel van Dijke (Meteo Consult BV))
• New option to skip interpolation to interior grid points in metgrid for faster processing times
• Add gfortran options for Linux/x86_64 (thanks to Thomas Schwitalla)
• Add input data support for the following datasets:
• CFSR (NCEP Climate Forecasting System Reanalysis)
• ERA Interim Analysis by ECMWF
• NCEP GEFS (ensemble forecast data)
• Fix in processing NCEP 1/12 degree data files (0.083 degree SST data)
• Fix uninitialized variables in geogrid that led to incorrect runtime behavior under certain compilers (thanks to Timothy Brown (NOAA) and Brian Reen (PSU) for independently spotting this)
• Fix to binary I/O to correctly handle subgrid refinement (used by WRF-Fire) (thanks to Timothy Brown (NOAA).
• Update w3lib and g2lib to NCEP's latest versions (2.0 and 1.2.2, respectively)
• Fix SNOW and SNOWH units in ungrib for various data sets