000 FTUS42 KTBW 172321 TAFPIE TAF KPIE 172321Z 1800/1824 31007KT P6SM FEW250 FM180200 VRB04KT P6SM SKC FM181400 04006KT P6SM FEW250 FM181900 29008KT P6SM FEW100 SCT250=