000 FTUS46 KMTR 212321 TAFSFO TAF KSFO 212321Z 2200/2306 30015KT P6SM SKC FM220600 28007KT P6SM SKC FM221600 04004KT P6SM SKC FM222000 25012KT P6SM FEW250 FM222300 29016KT P6SM FEW250 FM230400 29010KT P6SM FEW250=