KIAH 210530Z 2106/2212 02007KT P6SM BKN035 BKN060 BKN110 
  FM211400 08010KT P6SM SCT040 SCT060 BKN120 
  FM211800 11009KT P6SM FEW050 SCT250 
  FM220200 14004KT P6SM SCT040 BKN250