TAF KHRT 231800Z 2318/2424 18009KT 9999 FEW040 QNH3007INS 
  BECMG 2400/2401 24006KT 9999 SKC QNH3005INS WND 36006KT AFT 2405 
  BECMG 2416/2417 18009KT 9999 FEW040 QNH3003INS TX27/2318Z TN16/2410Z