FTUS80 KWBC 181918 AAA
TAF AMD
KTTN 181915Z 1819/1918 22012KT P6SM FEW050
     FM190000 20005KT P6SM SCT250
     FM191400 23008KT P6SM SCT250
     FM191700 24010G18KT P6SM FEW050 SCT250=