This came up from GitHub Discussion dtcenter/METplus#1438

Reading NPM data results in the following error message:

ERROR : MetGrib2DataFile::data_plane() -> PDS template number (6) is not supported. Please email met_help@ucar.edu.

(Note: #2054 was created to address the email address in the error message)

Here's the PDS table:
https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_table4-0.shtml

Here's table 4.6:
https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp4-6.shtml

Here's where the new code is needed in MET:

Describe the Enhancement

Add support for reading GRIB PDS template 6 data in the MET tools

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• METplus, MET, METdatadb, METviewer, METexpress, METcalcpy, METplotpy

Enhancement Checklist

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