WTKO20 RKSL 270000 KMA TROPICAL CYCLONE ADVISORY NO. 18 NAME 1521 DUJUAN ANALYSIS POSITION 270000UTC 22.3N 127.5E MOVEMENT W 5KT PRES/VMAX 935HPA 95KT FORECAST 24HR POSITION 280000UTC 23.5N 123.8E WITHIN 75NM PRES/VMAX 930HPA 97KT 48HR POSITION 290000UTC 25.0N 119.5E WITHIN 125NM PRES/VMAX 965HPA 72KT 72HR POSITION 300000UTC 27.1N 116.0E WITHIN 0NM PRES 998HPA KOREA METEOROLOGICAL ADMINISTRATION.