g2subset (grib2 subset) allows you to subset (time, field, level, or region) a GRIB2 file and
sends you the result
Subdirectory
   nam.20250701 |
   nam.20250630 |
   nam.20250629 |
   nam.20250628 |
   nam.20250627 |
   nam.20250626 |
   nam.20250625 |
   nam.20250624 |
NCEP NOMADS Version 1.2