WTKO20 RKSL 051800 KMA TROPICAL CYCLONE ADVISORY NO. 12 NAME 1601 NEPARTAK ANALYSIS POSITION 051800UTC 18.0N 131.9E MOVEMENT WNW 18KT PRES/VMAX 935HPA 95KT FORECAST 24HR POSITION 061800UTC 21.3N 125.7E WITHIN 75NM PRES/VMAX 925HPA 99KT 48HR POSITION 071800UTC 23.8N 121.8E WITHIN 125NM PRES/VMAX 920HPA 103KT 72HR POSITION 081800UTC 26.4N 120.4E WITHIN 175NM PRES/VMAX 965HPA 72KT 96HR POSITION 091800UTC 29.3N 120.6E WITHIN 250NM PRES/VMAX 985HPA 52KT 120HR POSITION 101800UTC 32.3N 121.7E WITHIN 295NM PRES/VMAX 992HPA 45KT KOREA METEOROLOGICAL ADMINISTRATION.