WTJP21 RJTD 151200 WARNING 151200. WARNING VALID 161200. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1704 TALAS (1704) 996 HPA AT 17.0N 111.1E SOUTH CHINA SEA MOVING WESTNORTHWEST SLOWLY. POSITION FAIR. MAX WINDS 40 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 240 MILES SOUTHEAST SEMICIRCLE AND 180 MILES ELSEWHERE. FORECAST POSITION FOR 160000UTC AT 17.9N 109.8E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 161200UTC AT 18.5N 107.6E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 171200UTC AT 19.5N 102.3E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=