WTJP21 RJTD 121200 WARNING 121200. WARNING VALID 131200. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1814 YAGI (1814) 990 HPA AT 27.7N 122.4E EAST CHINA SEA MOVING NORTHWEST 14 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 130000UTC AT 30.8N 119.6E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 994 HPA, MAX WINDS 35 KNOTS NEAR CENTER. FORECAST POSITION FOR 131200UTC AT 33.1N 117.0E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=