WTKO20 RKSL 260000 KMA TROPICAL CYCLONE ADVISORY NO. 1 NAME 1701 MUIFA ANALYSIS POSITION 260000UTC 13.4N 135.6E MOVEMENT WNW 4KT PRES/VMAX 1000HPA 35KT FORECAST 24HR POSITION 270000UTC 15.5N 133.5E WITHIN 75NM PRES/VMAX 998HPA 37KT 48HR POSITION 280000UTC 17.1N 134.8E WITHIN 0NM PRES 1002HPA KOREA METEOROLOGICAL ADMINISTRATION.