KCHA 172253Z COR 18010KT 10SM FEW018 SCT060 OVC120 23/21 A2999 RMK AO2 RAE33 SLP149 P0003 T02280206
KCHA 172320Z 1800/1824 19006KT P6SM VCSH SCT025 BKN100 
  TEMPO 1809/1813 5SM -SHRA BR BKN015 
  FM181600 21011KT P6SM VCSH SCT030 BKN050 
  PROB30 1816/1821 4SM TSRA BR BKN030CB