WTKO20 RKSL 111800 KMA TROPICAL CYCLONE ADVISORY NO. 3 NAME 1702 MERBOK ANALYSIS POSITION 111800UTC 19.3N 115.7E MOVEMENT NNW 15KT PRES/VMAX 998HPA 37KT FORECAST 24HR POSITION 121800UTC 22.9N 114.9E WITHIN 75NM PRES/VMAX 1000HPA 35KT 48HR POSITION 131800UTC 25.4N 117.6E WITHIN 0NM PRES 1004HPA KOREA METEOROLOGICAL ADMINISTRATION.