WTJP23 RJTD 231800 WARNING 231800. WARNING VALID 241800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1708 SONCA (1708) 998 HPA AT 17.2N 111.3E SOUTH CHINA SEA ALMOST STATIONARY. POSITION FAIR. MAX WINDS 35 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 30 MILES. FORECAST POSITION FOR 241800UTC AT 18.0N 109.6E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA, MAX WINDS 35 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 251800UTC AT 18.8N 106.2E WITH 95 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA, MAX WINDS 35 KNOTS NEAR CENTER. FORECAST POSITION FOR 261800UTC AT 18.4N 101.9E WITH 130 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=