GEMPAK 6.10 is available on the Unidata download page
https://www.unidata.ucar.edu/downloads/gempak/
GEMPAK is provided as a source tarball package and as pre-built binaries for 32- and 64-bit linux, and 32-bit SunOS (x86). Separate downloads for the external library package and tables are available.
Updates from 6.8 to 6.10 include
- Table entries for ABOM ACCESS and INPE COSMO decoding and display
- Build support for gcc/gfortran 4.6
- NAVGEM support
- CFSR diabatic heating grid support
- Updated dcgrib2 to further support non-US grids (GME and G3DVAR)
- Fix for nmap2 SPF loading on OS X
- NetCDF and xml2 library updates
- Updated datatype.tbl entries for scatterometer ocean wind vector