123 
FTUS46 KSTO 041720 CCB
TAFSAC
TAF COR
KSAC 041720Z 0417/0512 VRB03KT 3SM BR SCT002 BKN100
      TEMPO 0417/0419 1/4SM FG VV002
     FM041900 30004KT 5SM BR BKN250
     FM042000 35004KT P6SM BKN250
     FM050300 27005KT P6SM BKN250
     FM050600 VRB03KT 1SM BR BKN250=