583 FTUS46 KLOX 031721 TAFLGB TAF KLGB 031721Z 0318/0418 20008KT P6SM SCT150 FM040000 29008KT P6SM SCT150 FM040500 VRB03KT P6SM SCT150 FM041100 VRB03KT 3SM BR OVC008 FM041700 VRB03KT P6SM SCT150=