WTKO20 RKSL 040600 KMA TROPICAL CYCLONE ADVISORY NO. 10 NAME 1703 NANMADOL ANALYSIS POSITION 040600UTC 33.5N 134.4E MOVEMENT E 35KT PRES/VMAX 994HPA 41KT FORECAST 12HR POSITION 041800UTC 35.4N 141.4E WITHIN 0NM PRES 998HPA KOREA METEOROLOGICAL ADMINISTRATION.