WTJP33 RJTD 142100 WARNING 142100. WARNING VALID 152100. TYPHOON WARNING. SEVERE TROPICAL STORM 2407 AMPIL (2407) 975 HPA AT 29.2N 141.1E OGASAWARA SHOTO MOVING NORTH 12 KNOTS. POSITION GOOD. MAX WINDS 60 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 60 MILES. RADIUS OF OVER 30 KNOT WINDS 210 MILES SOUTHEAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 150900UTC AT 31.2N 141.3E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 75 KNOTS NEAR CENTER. FORECAST POSITION FOR 152100UTC AT 33.2N 141.1E WITH 42 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 950 HPA, MAX WINDS 80 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=