WTJP24 RJTD 170000 WARNING 170000. WARNING VALID 180000. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1818 RUMBIA (1818) 985 HPA AT 31.1N 121.3E CENTRAL CHINA MOVING NORTHWEST 08 KNOTS. POSITION FAIR. MAX WINDS 45 KNOTS. RADIUS OF OVER 30 KNOT WINDS 210 MILES EAST SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 171200UTC AT 31.8N 117.9E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA, MAX WINDS 35 KNOTS. FORECAST POSITION FOR 180000UTC AT 32.5N 115.8E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=