WTJP23 RJTD 150600 WARNING 150600. WARNING VALID 160600. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1816 BEBINCA (1816) 990 HPA AT 21.0N 111.4E SOUTH CHINA SEA MOVING WESTNORTHWEST 06 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 160600UTC AT 20.2N 109.3E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 40 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 170600UTC AT 19.9N 106.3E WITH 95 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 40 KNOTS NEAR CENTER. FORECAST POSITION FOR 180600UTC AT 20.3N 102.5E WITH 130 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 994 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=