Source: NSSL Operational MRMS GRIB2 Tables, current for
MRMS v12.2 (accessed 2026-07-29).
Reference:
nssl.noaa.gov/projects/mrms/operational/tables.php ·
Full CSV:
github.com/NOAA-National-Severe-Storms-Laboratory/mrms-support
All GRIB2 filenames are prefixed
MRMS_ (e.g. folder
ReflectivityAtLowestAltitude_00.50 → file
MRMS_ReflectivityAtLowestAltitude_00.50_YYYYMMDD-HHMMSS.grib2.gz). The trailing number in a folder name (e.g.
_00.50) is the field's vertical level in km, not a version number.
Products marked with
33 lvls appear in the S3 bucket as ~33 separate height-level folders (500 m–19,000 m CAPPI) — collapsed to one row here.