WTKO20 RKSL 151200 KMA TROPICAL CYCLONE ADVISORY NO. 2 NAME 1818 RUMBIA ANALYSIS POSITION 151200UTC 29.3N 126.0E MOVEMENT NW 16KT PRES/VMAX 996HPA 35KT FORECAST 24HR POSITION 161200UTC 30.4N 122.0E WITHIN 60NM PRES/VMAX 990HPA 43KT 48HR POSITION 171200UTC 30.6N 117.1E WITHIN 0NM PRES/VMAX 996HPA 29KT KOREA METEOROLOGICAL ADMINISTRATION.