TAF KGRF 090500Z 0905/1011 26005KT 9999 BKN210 QNH3020INS 
  BECMG 0910/0911 06004KT 9999 OVC270 QNH3018INS 
  BECMG 0915/0916 03005KT 9999 OVC180 QNH3004INS 
  BECMG 1001/1002 30008KT 9999 FEW050 QNH3004INS TX20/0916Z TN06/0913Z