WTKO20 RKSL 061800 KMA TROPICAL CYCLONE ADVISORY NO. 16 NAME 1813 SHANSHAN ANALYSIS POSITION 061800UTC 29.6N 145.0E MOVEMENT NNW 12KT PRES/VMAX 970HPA 68KT FORECAST 24HR POSITION 071800UTC 32.5N 142.0E WITHIN 60NM PRES/VMAX 975HPA 62KT 48HR POSITION 081800UTC 34.9N 140.2E WITHIN 90NM PRES/VMAX 980HPA 56KT 72HR POSITION 091800UTC 38.7N 144.2E WITHIN 135NM PRES/VMAX 985HPA 52KT 96HR POSITION 101800UTC 43.7N 157.7E WITHIN 180NM PRES/VMAX 990HPA 47KT KOREA METEOROLOGICAL ADMINISTRATION.