PARM = TMPF;T6NF;T6XF;P01I;TCLD;WTHR                                            

    STN    YYMMDD/HHMM      TMPF     T6NF     T6XF     P01I     TCLD     WTHR
    STL    200323/1400     37.94 -9999.00 -9999.00 -9999.00      OVC        F
    STL    200323/1500     39.92 -9999.00 -9999.00 -9999.00      OVC        H
    STL    200323/1600     41.00 -9999.00 -9999.00 -9999.00      OVC         
    STL    200323/1700     42.08 -9999.00 -9999.00 -9999.00      OVC         
    STL    200323/1800     42.08    37.94    42.98 -9999.00      OVC         
    STL    200323/1900     42.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200323/2000     44.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200323/2100     44.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200323/2200     44.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200323/2300     44.96 -9999.00 -9999.00 -9999.00      OVC