WTKO20 RKSL 031800 KMA TROPICAL CYCLONE ADVISORY NO. 8 NAME 1703 NANMADOL ANALYSIS POSITION 031800UTC 31.4N 127.8E MOVEMENT NE 24KT PRES/VMAX 985HPA 52KT FORECAST 12HR POSITION 040600UTC 34.0N 132.9E WITHIN 30NM PRES/VMAX 992HPA 45KT 24HR POSITION 041800UTC 35.6N 141.4E WITHIN 0NM PRES 996HPA KOREA METEOROLOGICAL ADMINISTRATION.