WTJP21 RJTD 231800 WARNING 231800. WARNING VALID 241800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 2502 SEPAT (2502) 1004 HPA AT 28.6N 142.1E OGASAWARA SHOTO MOVING NORTHNORTHWEST 16 KNOTS. POSITION GOOD. MAX WINDS 35 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 150 MILES NORTHEAST SEMICIRCLE AND 60 MILES ELSEWHERE. FORECAST POSITION FOR 240600UTC AT 30.1N 140.8E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1004 HPA, MAX WINDS 35 KNOTS NEAR CENTER. FORECAST POSITION FOR 241800UTC AT 31.6N 140.0E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1008 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=