WTJP31 RJTD 270300 WARNING 270300. WARNING VALID 280300. TYPHOON WARNING. TYPHOON 1521 DUJUAN (1521) 925 HPA AT 22.3N 127.1E SEA SOUTH OF OKINAWA MOVING WEST 07 KNOTS. POSITION GOOD. MAX WINDS 100 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 100 MILES. RADIUS OF OVER 30 KNOT WINDS 270 MILES. FORECAST POSITION FOR 271500UTC AT 22.9N 125.5E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 100 KNOTS NEAR CENTER. FORECAST POSITION FOR 280300UTC AT 23.8N 123.5E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 100 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=