TAF KGRF 292100Z 2921/3103 28005KT 9999 SCT020 BKN150 QNH3006INS 
  BECMG 2922/2923 27003KT 9999 SCT150 BKN200 QNH3008INS 
  BECMG 3010/3011 VRB03KT 9999 SCT010 BKN015 QNH3010INS 
  BECMG 3021/3022 29005KT 9999 BKN200 QNH3003INS TX26/3000Z TN13/3012Z