WTJP21 RJTD 041800 WARNING 041800. WARNING VALID 051800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 2515 PEIPAH (2515) 1000 HPA AT 33.1N 133.0E SHIKOKU MOVING EASTNORTHEAST 09 KNOTS. POSITION FAIR. MAX WINDS 35 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 150 MILES SOUTHEAST SEMICIRCLE AND 90 MILES ELSEWHERE. FORECAST POSITION FOR 050600UTC AT 34.7N 137.5E WITH 45 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA, MAX WINDS 35 KNOTS NEAR CENTER. FORECAST POSITION FOR 051800UTC AT 34.7N 144.7E WITH 65 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA, MAX WINDS 35 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 061800UTC AT 33.9N 155.2E WITH 115 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 45 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=