WTKO20 RKSL 260600 KMA TROPICAL CYCLONE ADVISORY NO. 15 NAME 1521 DUJUAN ANALYSIS POSITION 260600UTC 21.6N 129.6E MOVEMENT NW 10KT PRES/VMAX 960HPA 76KT FORECAST 24HR POSITION 270600UTC 23.0N 126.9E WITHIN 75NM PRES/VMAX 945HPA 87KT 48HR POSITION 280600UTC 24.3N 122.9E WITHIN 125NM PRES/VMAX 940HPA 91KT 72HR POSITION 290600UTC 25.6N 119.1E WITHIN 175NM PRES/VMAX 970HPA 68KT 96HR POSITION 300600UTC 27.5N 116.1E WITHIN 0NM PRES 1000HPA KOREA METEOROLOGICAL ADMINISTRATION.