WTJP22 RJTD 121200 WARNING 121200. WARNING VALID 131200. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 2406 SON-TINH (2406) 1000 HPA AT 32.9N 150.5E SEA EAST OF JAPAN MOVING NORTHWEST 10 KNOTS. POSITION FAIR. MAX WINDS 35 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 180 MILES EAST SEMICIRCLE AND 60 MILES ELSEWHERE. FORECAST POSITION FOR 130000UTC AT 35.2N 148.0E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA, MAX WINDS 35 KNOTS NEAR CENTER. FORECAST POSITION FOR 131200UTC AT 37.4N 146.1E WITH 42 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1008 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=