WTKO20 RKSL 120600 KMA TROPICAL CYCLONE ADVISORY NO. 5 NAME 1702 MERBOK ANALYSIS POSITION 120600UTC 21.0N 114.7E MOVEMENT NNW 9KT PRES/VMAX 996HPA 39KT FORECAST 24HR POSITION 130600UTC 24.4N 115.0E WITHIN 0NM PRES 1002HPA KOREA METEOROLOGICAL ADMINISTRATION.