000 FTUS43 KSGF 201720 TAFSGF TAF KSGF 201720Z 2018/2118 03012G19KT P6SM BKN250 FM202200 01009KT P6SM BKN150 FM210200 VRB04KT P6SM OVC100 FM211200 36006KT P6SM FEW250=