527 
FTUS42 KCHS 170520
TAFCHS
TAF
KCHS 170520Z 1706/1806 00000KT P6SM SKC
     FM171000 00000KT 6SM MIFG FEW250
      TEMPO 1710/1713 1/2SM FG FEW150
     FM171400 00000KT P6SM FEW250
     FM171700 19008KT P6SM BKN060
     FM180100 22003KT P6SM BKN050=