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Lisa, Thank you for sending the email with the files showing your input to snprof. I see what the problem you are having is. Your snprof plot is specifying: SNPARM=THTV;BRBK the snparm line above is attempting to plot both virtual potential temperature and the packed wind/direction value. The line you see going up the left side of your display represents the temperature values on the order of 300-400, while you are seeing a graph of the BRBK value in the range of 40000. As a result of the scales of the plots being so different, the THTV graph shows up as nearly a vertical line. What you really want is: SNPARM=THTV WIND=BK1 or WIND=BM1 The BRBK values represent a packed number that contains both speed and direction (aka ffddd, resulting in the large size of the number). Any parameter listed on the SNPARM line will be drawn as a line graph in the profile, while the WIND parameter will draw the wind barbs on the right side of the plot. If you wanted a profile of wind speed and THTV, then you could use: SNPARM=THTV;SPED or SNPARM=THTV;SPED*10 as an example. The primary point here is that it really doesn't make since to plot BRBK as a line graph since it is a combination of both speed and direction. For the WIND parameter, the BM1 will plot B(arbs) in M(eters/second) using color 1. BK1 will plot B(arbs) in K(nots) using color 1 etc. Steve Chiswell Unidata User Support >From: Shoemaker Lisa C Capt AFIT/EN <address@hidden> >Organization: . >Keywords: 199910281747.LAA08573 >This message is in MIME format. Since your mail reader does not understand >this format, some or all of this message may not be legible. > >------_=_NextPart_000_01BF216C.46BC66C0 >Content-Type: text/plain > >Steve, > >I have uploaded a file named all_obs.snd in the incoming file directory. >Attached are the text files for the routines that I've been trying to run in >snprof. I was able to read them on my PC using Wordpad but not notepad. >The snprof.txt file has the last run of snprof and all the parameters along >with the DATTIM that you will need. I've had success with plotting >potential temperature and equivalent potential temperature versus pressure >and height. However, I cannot get the virtual temp or virtual potential >temperature plots to work out. Temperatures displayed are in the tens of >thousands instead of 200-300K range. > >I appreciate your taking the time to help me find a fix to this problem. I >know you must have a busy schedule. Please let me know if you need >additional information from me. Thanks again! > >Capt Lisa Shoemaker >Air Force Institute of Technology >937-255-3636x4512 > > <<snprof.txt>> <<thta.txt>> <<thte.txt>> <<thtv.txt>> > >------_=_NextPart_000_01BF216C.46BC66C0 >Content-Type: text/plain; > name="snprof.txt" >Content-Transfer-Encoding: quoted-printable >Content-Disposition: attachment; > filename="snprof.txt" > >SNFILE Sounding data file /all_obs.snd=0A= > DATTIM Date/time 960130/00=0A= > AREA Data area vbg=0A= > SNPARM Sounding parameter list THTV;BRBK=0A= > LINE Line color/type/width/label 1/1/3=0A= > PTYPE Plot type/h:w ratio/margins lin=0A= > VCOORD Vertical coordinate type PRES=0A= > STNDEX Stability indices lclp/lfcv=0A= > STNCOL Stability index color 1=0A= > WIND Wind symbol/siz/wdth/typ/hdsz BM1=0A= > WINPOS Wind position 1=0A= > MARKER Marker color/type/size/width/hw 0=0A= > BORDER Background color/dash/width 1=0A= > TITLE Title color/line/title 1=0A= > DEVICE Device|name|x size;y size|color XW=0A= > YAXIS Ystrt/ystop/yinc/lbl;gln;tck =0A= > XAXIS Xstrt/xstop/xinc/lbl;gln;tck =0A= > FILTER Filter data factor .25=0A= > CLEAR Clear screen flag YES=0A= > PANEL Panel loc/color/dash/width/regn 0=0A= > TEXT Text size/font/width/hw flag 1=0A= > THTALN THTA color/dash/width/mn/mx/inc 8=0A= > THTELN THTE color/dash/width/mn/mx/inc 23=0A= > MIXRLN MIXR color/dash/width/mn/mx/inc 23/3=0A= >