271 FTUS46 KPDT 071720 TAFBDN TAF KBDN 071720Z 0718/0818 13004KT P6SM SKC FM072100 VRB04KT P6SM SCT200 FM080300 VRB05KT P6SM BKN100 FM081000 20003KT P6SM BKN050 OVC100 FM081500 21005KT P6SM VCSH BKN025 OVC050 FM081730 26005KT 4SM -SHSN BKN025 OVC050=