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

    STN    YYMMDD/HHMM      TMPF     T6NF     T6XF     P01I     TCLD     WTHR
    STL    200317/0000     44.96    42.98    46.04     0.00      OVC       L-
    STL    200317/0100     42.98 -9999.00 -9999.00     0.00      OVC      L-F
    STL    200317/0200     42.98 -9999.00 -9999.00     0.00      OVC      L-F
    STL    200317/0300     42.98 -9999.00 -9999.00     0.00      OVC      L-F
    STL    200317/0400     42.98 -9999.00 -9999.00     0.00      OVC        F
    STL    200317/0500     42.98 -9999.00 -9999.00 -9999.00      OVC        F
    STL    200317/0600     42.98    42.08    44.96 -9999.00      OVC        F
    STL    200317/0700     42.98 -9999.00 -9999.00 -9999.00      OVC        F
    STL    200317/0800     42.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/0900     42.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/1000     42.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/1100     42.08 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/1200     42.08    42.08    42.98 -9999.00      OVC         
    STL    200317/1300     42.08 -9999.00 -9999.00 -9999.00      BKN         
    STL    200317/1400     44.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/1500     46.94 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/1600     46.94 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/1700     46.94 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/1800     48.02    42.08    48.02 -9999.00      OVC         
    STL    200317/1900     48.02 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/2000     48.92 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/2100     51.08 -9999.00 -9999.00 -9999.00      OVC         
    STL    200317/2200     51.98 -9999.00 -9999.00 -9999.00      BKN         
    STL    200317/2300     51.98 -9999.00 -9999.00 -9999.00      BKN