WTJP21 RJTD 261800 WARNING 261800. WARNING VALID 271800. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1521 DUJUAN (1521) 945 HPA AT 22.3N 128.1E SEA SOUTH OF OKINAWA MOVING WESTNORTHWEST 08 KNOTS. POSITION GOOD. MAX WINDS 85 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 80 MILES. RADIUS OF OVER 30 KNOT WINDS 250 MILES. FORECAST POSITION FOR 270600UTC AT 22.8N 126.5E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 85 KNOTS NEAR CENTER. FORECAST POSITION FOR 271800UTC AT 23.3N 124.7E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 85 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 281800UTC AT 24.5N 120.7E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 75 KNOTS NEAR CENTER. FORECAST POSITION FOR 291800UTC AT 26.4N 116.4E WITH 210 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 45 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=