000 FTUS41 KLWX 181728 TAFIAD TAF KIAD 181728Z 1818/1924 31014G21KT P6SM BKN070 BKN250 FM182200 35008KT P6SM SCT250 FM190500 08006KT P6SM BKN025 FM190700 11005KT P6SM OVC008 FM191500 15007KT P6SM OVC010 FM191800 15007KT P6SM VCSH OVC015=