WTJP31 RJTD 232100 WARNING 232100. WARNING VALID 242100. STORM WARNING. SEVERE TROPICAL STORM 1819 SOULIK (1819) 985 HPA AT 36.5N 127.8E KOREA MOVING NORTHNORTHEAST 15 KNOTS. POSITION FAIR. MAX WINDS 50 KNOTS. RADIUS OF OVER 30 KNOT WINDS 180 MILES SOUTH SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 240900UTC AT 39.6N 131.1E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 50 KNOTS NEAR CENTER. FORECAST POSITION FOR 242100UTC AT 42.0N 134.9E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=