518 
FTUS41 KBOX 181120
TAFBOS
TAF
KBOS 181120Z 1812/1918 24010KT P6SM FEW100
     FM181600 25012G20KT P6SM FEW250
     FM182200 28012G21KT P6SM BKN070
     FM190300 29011KT P6SM FEW250=