000 FTUS42 KFFC 161731 TAFCSG TAF KCSG 161731Z 1618/1718 20006KT P6SM SCT150 FM170000 19005KT P6SM BKN200 FM170500 VRB03KT P6SM OVC200 FM171600 22006KT P6SM FEW040 SCT250=