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

    STN    YYMMDD/HHMM      TMPF     T6NF     T6XF     P01I     TCLD     WTHR
    STL    200405/0000     42.98    41.00    42.98 -9999.00      OVC         
    STL    200405/0100     42.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/0200     42.08 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/0300     42.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/0400     42.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/0500     42.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/0600     44.06    42.08    44.06 -9999.00      OVC         
    STL    200405/0700     44.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/0800     44.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/0900     44.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/1000     44.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/1100     44.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/1200     42.98    42.98    44.06 -9999.00      OVC         
    STL    200405/1300     44.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/1400     44.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/1500     44.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/1600     46.94 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/1700     48.92 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/1800     50.00    42.98    50.00 -9999.00      OVC         
    STL    200405/1900     51.98 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/2000     53.06 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/2100     53.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/2200     53.96 -9999.00 -9999.00 -9999.00      OVC         
    STL    200405/2300     53.96 -9999.00 -9999.00 -9999.00      BKN