WTJP31 RJTD 170900 WARNING 170900. WARNING VALID 180900. TYPHOON WARNING. SEVERE TROPICAL STORM 1819 SOULIK (1819) 985 HPA AT 23.4N 140.2E OGASAWARA SHOTO MOVING NORTHNORTHWEST 15 KNOTS. POSITION FAIR. MAX WINDS 55 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 40 MILES. RADIUS OF OVER 30 KNOT WINDS 270 MILES EAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 172100UTC AT 24.4N 139.9E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 65 KNOTS NEAR CENTER. FORECAST POSITION FOR 180900UTC AT 24.7N 139.9E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=