WTJP21 RJTD 021800 WARNING 021800. WARNING VALID 031800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 2618 SAUDEL (2618) 992 HPA AT 23.2N 118.2E SOUTH CHINA SEA MOVING NORTHNORTHEAST SLOWLY. POSITION FAIR. MAX WINDS 35 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 210 MILES. FORECAST POSITION FOR 031800UTC AT 23.2N 116.2E WITH 57 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=