WTKO20 RKSL 091200 KMA TROPICAL CYCLONE ADVISORY NO. 27 NAME 1813 SHANSHAN ANALYSIS POSITION 091200UTC 37.7N 142.5E MOVEMENT NE 9KT PRES/VMAX 985HPA 52KT FORECAST 24HR POSITION 101200UTC 41.6N 153.1E WITHIN 0NM PRES/VMAX 990HPA 47KT KOREA METEOROLOGICAL ADMINISTRATION.