g2subset (grib2 subset) allows you to subset (time, field, level, or region) a GRIB2 file and
sends you the result
Subdirectory
   sice.20180425 |
   sice.20180424 |
   sice.20180423 |
g2sub 1.1.0.beta-6 and comments: Wesley.Ebisuzaki@noaa.gov, Jun.Wang@noaa.gov