WTJP21 RJTD 301200 WARNING 301200. WARNING VALID 311200. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 2508 CO-MAY (2508) 980 HPA AT 31.0N 121.1E CENTRAL CHINA MOVING NORTHWEST 08 KNOTS. POSITION FAIR. MAX WINDS 40 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 270 MILES NORTHEAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 310000UTC AT 31.9N 119.5E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA. BECOMING TROPICAL DEPRESSION. FORECAST POSITION FOR 311200UTC AT 32.0N 118.2E WITH 42 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=