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Hi Victor, It seems there is a 3-digit limit to the forecast hour that NAGRIB can properly decode. If you could, please upload a sample file to http://motherlode.ucar.edu/repository/alias/gempakuploads/ and I'll take a look. -Michael James Unidata > Full Name: Victor Gensini > Email Address: address@hidden > Organization: University of Georgia > Package Version: > Operating System: > Hardware: > Description of problem: Hello: > > I am having a problem running NAGRIB on some post-processed WRF data. I have > no trouble running NAGRIB of forecast hours > 999 (GEMPAK can handle 3 places > of forecast hours). When I run NAGRIB on these forecast files (see > attachment), I get an NAGRIB error: [NAGRIB -17] Error setting date/time. > > It looks partly due to the fact that the timestamp was set to 460101/0600F034 > when it was decoding, but it should actually be a forecast hour of something > like F20514 (these are very long duration downscaled simulations. I have a > netCDF workaround disregarding GEMPAK, but I would favor using GEMPAK for the > visualization of some fields. Any help would be greatly appreciated! I can > e-mail a sample .grb file if needed... > > Ticket Details =================== Ticket ID: WHJ-950992 Department: Support GEMPAK Priority: Normal Status: Open