WTJP31 RJTD 262100 WARNING 262100. WARNING VALID 272100. TYPHOON WARNING. TYPHOON 1521 DUJUAN (1521) 945 HPA AT 22.3N 128.0E SEA SOUTH OF OKINAWA MOVING WESTNORTHWEST 06 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 270900UTC AT 22.9N 126.1E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 85 KNOTS NEAR CENTER. FORECAST POSITION FOR 272100UTC AT 23.5N 124.2E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 85 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=