000 FTUS46 KSGX 180520 TAFSAN TAF KSAN 180520Z 1806/1912 VRB04KT P6SM SCT005 BKN250 FM180900 VRB04KT 4SM BR OVC006 FM181400 VRB04KT P6SM OVC010 FM181600 VRB04KT P6SM SCT010 BKN200 FM181900 25008KT P6SM SCT200 FM190200 VRB04KT P6SM OVC012=