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> Steve, > > Thanks that fixed that problem. > > If I may ask one more simple one: I am trying gdcntr on some wrf data > converted to gempak format. I have tried gdattime=all, gdattime=f00, > gdattime=f24 and it doesn't like any of them, always saying TIME is invalid. > I don't get it, since the gempak file is derived from a WRF 24h forecast. > What is the best way, in gempak, to look at my gempak file to see what times > are actually in it? I tried gdinfo but it only gave grid dimensions? TIA. > > Regards, > Steve > Steve, The parameter for GDCNTR is GDATTIM (no "E" at the end). If you are typing gdattime, then the program won't recognize that parameter. Generally, gdattim=fall would be a loop of available times. if you are unsure about what your data file contains, run GDINFO then at the prompt, type "restore defaults/gdinfo" and then "run" to see a listing of all grids in your file. Steve Chiswell Unidata User Support Ticket Details =================== Ticket ID: WPX-538404 Department: Support GEMPAK Priority: Normal Status: Closed