000 FTUS41 KLWX 172341 TAFIAD TAF KIAD 172341Z 1800/1906 15007KT P6SM BKN250 FM180700 21004KT P6SM SCT045 FM181000 29004KT P6SM SCT025 BKN035 FM181300 32006KT P6SM SCT045 FM182200 35008KT P6SM SCT250 FM190500 09006KT P6SM BKN045=