g2subset (grib2 subset) allows you to subset (time, field, level, or region) a GRIB2 file and
sends you the result
Subdirectory
|    nam.20260418 |
|    nam.20260417 |
|    nam.20260416 |
|    nam.20260415 |
|    nam.20260414 |
|    nam.20260413 |
|    nam.20260412 |
|    nam.20260411 |
NCEP NOMADS Version 1.2