WTJP33 RJTD 140900 WARNING 140900. WARNING VALID 150900. TYPHOON WARNING. SEVERE TROPICAL STORM 2407 AMPIL (2407) 975 HPA AT 27.0N 141.2E OGASAWARA SHOTO MOVING NORTHEAST 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 SOUTHEAST SEMICIRCLE AND 90 MILES ELSEWHERE. FORECAST POSITION FOR 142100UTC AT 28.7N 141.5E WITH 35 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. FORECAST POSITION FOR 150900UTC AT 30.9N 141.4E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 75 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=