WTKO20 RKSL 310600 KMA TROPICAL CYCLONE ADVISORY NO. 42 NAME 1705 NORU ANALYSIS POSITION 310600UTC 23.0N 139.9E MOVEMENT WNW 5KT PRES/VMAX 940HPA 91KT FORECAST 24HR POSITION 010600UTC 24.0N 138.4E WITHIN 75NM PRES/VMAX 940HPA 91KT 48HR POSITION 020600UTC 25.5N 137.7E WITHIN 125NM PRES/VMAX 945HPA 87KT 72HR POSITION 030600UTC 27.2N 138.0E WITHIN 175NM PRES/VMAX 950HPA 84KT 96HR POSITION 040600UTC 28.2N 137.5E WITHIN 250NM PRES/VMAX 960HPA 76KT 120HR POSITION 050600UTC 28.8N 136.6E WITHIN 295NM PRES/VMAX 960HPA 76KT KOREA METEOROLOGICAL ADMINISTRATION.