WTKO20 RKSL 111800 KMA TROPICAL CYCLONE ADVISORY NO. 15 NAME 1814 YAGI ANALYSIS POSITION 111800UTC 25.3N 125.6E MOVEMENT W 12KT PRES/VMAX 990HPA 41KT FORECAST 24HR POSITION 121800UTC 29.4N 122.1E WITHIN 60NM PRES/VMAX 992HPA 41KT 48HR POSITION 131800UTC 33.9N 119.1E WITHIN 90NM PRES/VMAX 998HPA 35KT 72HR POSITION 141800UTC 37.0N 117.5E WITHIN 0NM PRES/VMAX 1002HPA 27KT KOREA METEOROLOGICAL ADMINISTRATION.