TAF KRSW 081720Z 0818/0918 25008KT P6SM FEW040 FEW250 
  FM090100 VRB03KT P6SM SCT250 
  FM090600 VRB02KT 6SM BR FEW008 SCT020 
  FM091300 20005KT P6SM VCSH SCT020 SCT250