WTJP23 RJTD 250000 WARNING 250000. WARNING VALID 260000. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1708 SONCA (1708) 994 HPA AT 16.7N 109.3E SOUTH CHINA SEA MOVING WEST SLOWLY. POSITION FAIR. MAX WINDS 35 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 60 MILES. FORECAST POSITION FOR 260000UTC AT 16.8N 105.3E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1002 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=