WTJP31 RJTD 231500 WARNING 231500. WARNING VALID 241500. STORM WARNING. SEVERE TROPICAL STORM 1819 SOULIK (1819) 975 HPA AT 34.7N 126.5E YELLOW SEA MOVING NORTHNORTHEAST 08 KNOTS. POSITION FAIR. MAX WINDS 60 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 60 MILES. RADIUS OF OVER 30 KNOT WINDS 150 MILES NORTHEAST SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 240300UTC AT 37.8N 129.3E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 50 KNOTS. FORECAST POSITION FOR 241500UTC AT 40.7N 132.7E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 45 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=