GRIB (GRIdded Binary) Format Information Links
GRIB Format Information
NCEP Office Note 388 on the WMO GRIB Format
A Guide to WMO GRIB (NCAR)
A Guide to the Code Form FM 92-IX Ext. GRIB (WMO)
GRIB File Manipulation Tools
GRIB decoders (NCAR)
Unpacking GRIB Output Files (NCEP)
Unidata Decoders
wgrib
grib2ctl
GRIB File Utilities for Perl
GRIB File Display Tools
Grid Analysis and Display System (GrADS)
Doing GRIB in GrADS