NZUS44 KMAF 121053 TAF KIAH 121120Z 1212/1318 23004KT P6SM BKN015 FM121500 23010KT P6SM SCT025 BKN250 FM122000 VRB05KT P6SM VCTS SCT060CB BKN250 FM130100 19007KT P6SM SCT100 BKN250 FM131000 24005KT P6SM BKN015 FM131500 25010KT P6SM VCSH SCT025= not too many changes from previous tafs. at this time not too certain regarding possible start of pcpn tomorrow so started things around 15z. ww