TAF KCOF 141800Z 1418/1524 12010G15KT 9999 SCT040 QNH2994INS 
  BECMG 1502/1503 VRB06KT 9999 FEW040 QNH2998INS 
  BECMG 1516/1517 14010G15KT 9999 SCT040 QNH2995INS TX30/1518Z TN22/1509Z