WTKO20 RKSL 280000 KMA TROPICAL CYCLONE ADVISORY NO. 8 NAME 1603 MIRINAE ANALYSIS POSITION 280000UTC 20.4N 105.8E MOVEMENT NW 3KT PRES/VMAX 990HPA 45KT FORECAST 24HR POSITION 290000UTC 21.9N 102.2E WITHIN 0NM PRES 1004HPA KOREA METEOROLOGICAL ADMINISTRATION.