WTJP21 RJTD 271200 WARNING 271200. WARNING VALID 281200. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1521 DUJUAN (1521) 925 HPA AT 22.7N 125.9E SEA SOUTH OF OKINAWA MOVING WEST 09 KNOTS. POSITION GOOD. MAX WINDS 100 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 80 MILES. RADIUS OF OVER 30 KNOT WINDS 270 MILES. FORECAST POSITION FOR 280000UTC AT 23.5N 124.1E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 100 KNOTS NEAR CENTER. FORECAST POSITION FOR 281200UTC AT 24.5N 121.6E WITH 75 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 85 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 291200UTC AT 26.2N 117.3E WITH 140 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 301200UTC AT 29.8N 117.1E WITH 160 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1004 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=