618 
FTUS42 KJAX 121730 AAA
TAFSSI
TAF AMD
KSSI 121730Z 1218/1318 24012G18KT P6SM SCT040 BKN120
     FM130000 25006KT P6SM BKN150
     FM130900 31011KT P6SM BKN030
     FM131700 32010KT P6SM SCT150=