WTJP33 RJTD 141500 WARNING 141500. WARNING VALID 151500. TYPHOON WARNING. SEVERE TROPICAL STORM 2407 AMPIL (2407) 975 HPA AT 28.0N 141.4E OGASAWARA SHOTO MOVING NORTH 10 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 150300UTC AT 29.9N 141.6E WITH 35 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. FORECAST POSITION FOR 151500UTC AT 32.1N 141.2E WITH 42 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 950 HPA, MAX WINDS 80 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=