WTJP21 RJTD 121800 WARNING 121800. WARNING VALID 131800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1814 YAGI (1814) 990 HPA AT 29.1N 120.7E CENTRAL CHINA MOVING NORTHWEST 19 KNOTS. POSITION GOOD. MAX WINDS 40 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 270 MILES EAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 130600UTC AT 31.8N 117.6E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA. BECOMING TROPICAL DEPRESSION. FORECAST POSITION FOR 131800UTC AT 33.9N 115.2E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=