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Chris, This is strange. I ran this on SOlaris which I believe you are too, and everything worked. Normally, with that error, I would suspect that the station table for the lat/lon information for all the decoded surface data was missing, so that the too few stations wouldactually be true....but, since it works for a single time, then that means that there should be lat/lon info in it. Can you ftp to ~gbuddy/incomin your ngm file, the grid file you are attempting to write to, and your oabsfc executable? Thanks, Steve Chiswell Unidata User Support >From: address@hidden (Chris Hennon) >Organization: UCAR/Unidata >Keywords: 200007271435.e6REZQT17298 >Steve - > >My input to OABSFC looks like: > > GEMPAK-OABSFC>l > SFFILE = 2000072700_nmos.gem > GDFILE = $HOME/grids/ngmmos.grd > SFPARM = sknt > DATTIM = all > DTAAREA = dset > GUESS = > GAMMA = 0.3 > SEARCH = 20 > NPASS = 2 > >When I run it like that, I get back: > >GEMPAK-OABSFC>r > [OABSFC 6] WARNING: Area is not DATA area in file. > [OABSFC -7] There are too few stations in data subset area. > [OABSFC 9] No data from 2000072700_nmos.gem will be used. > [OABSFC -9] No valid parameters have been entered. > Parameters requested: SFFILE,GDFILE,SFPARM,DATTIM,DTAAREA,GUESS,GAMMA, > SEARCH,NPASS. > >When I change dattim to 000727/06, it runs normally and performs the >analysis. Sorry I wasn't as specific last time. > >Chris > >================================================ >| Chris Hennon Ohio State University | >| Tropical Meteorology address@hidden | >| | >| Dept of Geography Office: 1155 Derby Hall | >| 1036 Derby Hall Phone : (614) 292-2704 | >| Columbus, OH 43210 Fax : (614) 292-6213 | >================================================ >