Hallo Byman,

unfortunately this advice did not help me. I tried under Windows the command line tool degrib from NDFD

The only command which worked was Inventory (-I). All others commands gave strange messages, for instance for Probe (-P).  All Convert commands (-C) resulted in the following error message:

ERROR: In call to Grib2Convert.
ERROR: In call to ReadGrib2Record.
Inside ReadGrib2Record.. Problems in MetaParse
Parse error Section 3
Un-supported Map Projection 40

This problem occurs only with reforecast data, not with the new forecasts. But these new forecasts are only available for the last 8 days.

Klaus Jacobi

> Klaus
> 
> I think it is better to convert the grib2 files to NetCDF from grib, then use raster package in R (like you did) .
> 
> I hope this will help
> 
> Byman




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