WTJP21 RJTD 130000 WARNING 130000. WARNING VALID 140000. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 2604 SINLAKU (2604) 905 HPA AT 12.2N 148.8E MARIANAS MOVING NORTHWEST 09 KNOTS. POSITION GOOD. MAX WINDS 115 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 90 MILES. RADIUS OF OVER 30 KNOT WINDS 325 MILES NORTHEAST SEMICIRCLE AND 270 MILES ELSEWHERE. FORECAST POSITION FOR 140000UTC AT 14.3N 146.0E WITH 35 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 905 HPA, MAX WINDS 115 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 150000UTC AT 15.8N 144.6E WITH 55 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 100 KNOTS NEAR CENTER. FORECAST POSITION FOR 160000UTC AT 18.1N 143.4E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 935 HPA, MAX WINDS 90 KNOTS NEAR CENTER. FORECAST POSITION FOR 170000UTC AT 20.6N 143.5E WITH 100 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 950 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 180000UTC AT 23.3N 144.5E WITH 150 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=