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

    STN    YYMMDD/HHMM      TMPF     T6NF     T6XF     P01I     TCLD     WTHR
    STL    200315/0000     39.92    39.02    42.08     0.00      OVC         
    STL    200315/0100     39.02 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/0200     39.02 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/0300     37.94 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/0400     37.04 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/0500     37.04 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/0600     35.96    35.96    39.92 -9999.00      OVC         
    STL    200315/0700     35.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/0800     35.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/0900     35.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/1000     35.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/1100     35.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/1200     35.06    35.06    35.96 -9999.00      OVC         
    STL    200315/1300     35.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/1400     35.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/1500     35.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/1600     35.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/1700     37.04 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/1800     37.94    35.06    37.94 -9999.00      OVC         
    STL    200315/1900     39.02 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/2000     39.92 -9999.00 -9999.00 -9999.00      OVC         
    STL    200315/2100     39.92 -9999.00 -9999.00 -9999.00      BKN         
    STL    200315/2200     42.08 -9999.00 -9999.00 -9999.00      BKN         
    STL    200315/2300     42.08 -9999.00 -9999.00 -9999.00      OVC