WTJP23 RJTD 151800 WARNING 151800. WARNING VALID 161800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1816 BEBINCA (1816) 990 HPA AT 20.6N 109.9E SOUTH CHINA MOVING WEST 08 KNOTS. POSITION FAIR. MAX WINDS 40 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 120 MILES SOUTH SEMICIRCLE AND 60 MILES ELSEWHERE. FORECAST POSITION FOR 161800UTC AT 20.1N 108.0E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 40 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 171800UTC AT 20.1N 106.7E WITH 95 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 40 KNOTS NEAR CENTER. FORECAST POSITION FOR 181800UTC AT 22.5N 108.2E WITH 150 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 994 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=