KSTL 030521Z 0306/0412 19007KT P6SM BKN080 
  FM031000 22008KT P6SM VCSH BKN050 
  FM031500 26008KT P6SM BKN070 
  FM032100 32007KT P6SM SCT040 SCT100 
  FM040600 00000KT P6SM VCTS BKN060CB