g2subset (grib2 subset) allows you to subset (time, field, level, or region) a GRIB2 file and
sends you the result
Subdirectory
|    wave.20091124 |
|    wave.20091123 |
|    wave.20091122 |
|    wave.20091121 |
|    wave.20091120 |
|    wave.20091119 |
|    wave.20091118 |
|    wave.20091117 |
g2sub 1.1.0.beta-6 and comments: Wesley.Ebisuzaki@noaa.gov, Jun.Wang@noaa.gov