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

    STN    YYMMDD/HHMM      TMPF     T6NF     T6XF     P01I     TCLD     WTHR
    STL    200310/0000     59.00    57.92    60.98     0.01      OVC       R-
    STL    200310/0100     59.00 -9999.00 -9999.00     0.05      OVC         
    STL    200310/0200     60.08 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/0300     60.08 -9999.00 -9999.00     0.00      BKN       R-
    STL    200310/0400     60.08 -9999.00 -9999.00     0.12      OVC       R-
    STL    200310/0500     59.00 -9999.00 -9999.00     0.06      OVC       R-
    STL    200310/0600     59.00    57.92    60.98     0.00      OVC       R-
    STL    200310/0700     50.00 -9999.00 -9999.00     0.04      OVC      L-F
    STL    200310/0800     46.04 -9999.00 -9999.00     0.00      OVC         
    STL    200310/0900     44.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/1000     42.08 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/1100     41.00 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/1200     39.92    39.92    50.00 -9999.00      OVC         
    STL    200310/1300     39.02 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/1400     39.92 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/1500     39.92 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/1600     39.92 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/1700     41.00 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/1800     41.00    39.02    41.00 -9999.00      OVC         
    STL    200310/1900     42.08 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/2000     42.08 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/2100     42.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/2200     42.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200310/2300     42.08 -9999.00 -9999.00 -9999.00      OVC