WPS Version 3.3.1
              Version 3.3.1 of the WRF Pre-Processing System (WPS)  was released on Sept 21, 2011. For V3.3 update of WPS, please click here. 
              Note: The V3 WRF model is NOT backward compatible with old V2 input files. One must rerun WPS to generate data for real/wrf. 
              Also see 'Known 
                Problems' in this release.
              Bug Fixes and Improvements:
              * Fix the description of variable 'mminlu' in the index file for MODIS data with lakes (posted 5/25/2011).              
              * A couple of Vtables are updated:
              
                - Vtable.CFSR_press_pgbh06 (replacing Vtable.CFSR)
                  - Vtable.CFSR_sfc_flx06
                  - Vtable.ARW
                
              
              * Fix to 'voidp' compile errors  by adding zlib.h to header. (Thanks to Arcesio Castaneda Medina).
              * Changes    to decode column variables (e.g. PWAT) and Mercator input grids (thanks to E. Hildebrand of AFWA)              
              * Update METGRID.TBL to use  missing values (-1.E30 used by default) for masked soil moisture input.              
              * A new configure script is added, and it is experimental in this release. To try the new configure script, type './configure_new'.