542 FTAK31 PAFG 201740 TAFAQT TAF PAQT 201740Z 2018/2118 19010KT P6SM SCT060 OVC070 FM201900 18012KT 6SM -SHSN OVC050 FM202200 16007KT P6SM SCT040 SCT250 FM210300 14006KT P6SM SKC=