WTJP21 RJTD 281800 WARNING 281800. WARNING VALID 291800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 2508 CO-MAY (2508) 990 HPA AT 26.8N 125.3E EAST CHINA SEA MOVING WEST 12 KNOTS. POSITION FAIR. MAX WINDS 35 KNOTS. RADIUS OF OVER 30 KNOT WINDS 210 MILES NORTHEAST SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 290600UTC AT 28.0N 123.8E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 35 KNOTS. FORECAST POSITION FOR 291800UTC AT 29.1N 123.0E WITH 57 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 35 KNOTS. EXTENDED OUTLOOK. FORECAST POSITION FOR 301800UTC AT 31.7N 120.5E WITH 100 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 35 KNOTS. FORECAST POSITION FOR 311800UTC AT 32.9N 118.3E WITH 140 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 35 KNOTS. FORECAST POSITION FOR 011800UTC AT 33.8N 118.8E WITH 175 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=