227 
FTUS44 KFWD 171720
TAFDFW
TAF
KDFW 171720Z 1718/1824 01008KT P6SM OVC007
      TEMPO 1718/1721 5SM -SN
     FM180000 02010KT P6SM OVC015
     FM181100 35012KT P6SM OVC025
     FM181600 35015G25KT P6SM BKN050=