000 FTUS43 KFSD 171720 TAFHON TAF KHON 171720Z 1718/1818 35018G26KT P6SM OVC035 FM180000 35014G21KT P6SM FEW045 FM180400 36009KT P6SM FEW100 FM181000 33006KT P6SM SKC FM181500 25007KT P6SM SKC=