FTUS46 KPDT 181720
TAFALW
TAF
KALW 181720Z 1818/1918 21009KT P6SM BKN025 OVC050
     FM182000 23009KT P6SM SCT020 BKN060
      PROB30 1821/1902 6SM -SHRASN
     FM190200 17008KT P6SM BKN050 BKN100=