g2subset (grib2 subset) allows you to subset (time, field, level, or region) a GRIB2 file and
sends you the result
Subdirectory
|    nam.20260322 |
|    nam.20260321 |
|    nam.20260320 |
|    nam.20260319 |
|    nam.20260318 |
|    nam.20260317 |
|    nam.20260316 |
|    nam.20260315 |
NCEP NOMADS Version 1.2