g2subset (grib2 subset) allows you to subset (time, field, level, or region) a GRIB2 file and
sends you the result
Subdirectory
|    nam.20260503 |
|    nam.20260502 |
|    nam.20260501 |
|    nam.20260430 |
|    nam.20260429 |
|    nam.20260428 |
|    nam.20260427 |
|    nam.20260426 |
NCEP NOMADS Version 1.2