WTKO20 RKSL 010000 KMA TROPICAL CYCLONE ADVISORY NO. 28 NAME 1803 JELAWAT ANALYSIS POSITION 010000UTC 19.1N 144.9E MOVEMENT E 17KT PRES/VMAX 985HPA 52KT FORECAST 24HR POSITION 020000UTC 19.8N 148.2E WITHIN 75NM PRES/VMAX 995HPA 41KT 48HR POSITION 030000UTC 21.0N 153.1E WITHIN 0NM PRES 1000HPA KOREA METEOROLOGICAL ADMINISTRATION.