KCHA 170753Z AUTO 00000KT 10SM CLR 23/21 A2998 RMK AO2 SLP143 T02280211
KCHA 170530Z 1706/1806 VRB03KT 6SM BR FEW030 SCT150 
  FM171500 24010KT P6SM SCT040 
  PROB30 1718/1724 4SM TSRA BR BKN030CB