UP -- Plots upper air data
  UP parm level map time <keywords>
  UP p1-p2 l1-l2 map t1-t2 <keywords>
Parameters:
  parm  | PLOT, T(C), TD(C), Z(m), WIN(ddff,ff(m/s)), ZS(m), P(mb), IDN,
          THAE(K), THA(K), MIX(g/kg), SPD(m/s)
  level | SFC, 1000, 925, 850, 700, 500, 400, 300, 250, 200, 150, 100,
          TRO1, TRO2, MAXW
  map   | state P.O. abbreviation, DEF, MID, NA, SAT, USA (def=DEF)
  time  | observation time, HH or HH:MM:SS (def=0 if current time is
          between 0 UTC and 13:15 UTC; otherwise def=12)
  p1-p2 | parameter difference used in plotting
  l1-l2 | level difference used in plotting
  t1-t2 | time difference used in plotting
Keywords:
  COLOR= | graphics color level for display (def=3)
  DAY= | year and day, YYDDD; use YYDDD-YYDDD for day differences
         (def=current)
  DECLUT=YES | declutters the display by not plotting values that
               overwrite another (def)
         =NO | plots values that overwrite each other
  GRA= | graphics frame number for display (def=current)
  LAT=min max | latitude bounds; use when DEF is specified for the
                map parameter
  LON=min max | longitude bounds; use when DEF is specified for the
                map parameter
  MDF= | IRAB or RAOB schema MD file number; use two values (f1-f2) when
         plotting differences (def=last digit of current day plus 10)
Remarks:
  If you do not specify keywords COLOR, DAY, GRA, LAT, LON or MDF, the
  string table is searched for strings of the same names.  If those
  strings exist, UP uses their values.  If keyword or string MDF is
  used, its value is stored and accessed in the string named RAOB.
  If the command gives unexpected results, use TL to list the string
  table or TD ALL to delete it.
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