WTKO20 RKSL 170000 KMA TROPICAL CYCLONE ADVISORY NO. 14 NAME 1607 CHANTHU ANALYSIS POSITION 170000UTC 37.7N 141.7E MOVEMENT NNE 22KT PRES/VMAX 990HPA 47KT FORECAST 12HR POSITION 171200UTC 44.2N 143.6E WITHIN 0NM PRES 992HPA KOREA METEOROLOGICAL ADMINISTRATION.