WTJP21 RJTD 150000 WARNING 150000. WARNING VALID 160000. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 2604 SINLAKU (2604) 925 HPA AT 15.7N 145.2E MARIANAS MOVING NORTHNORTHWEST SLOWLY. POSITION GOOD. MAX WINDS 100 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 110 MILES. RADIUS OF OVER 30 KNOT WINDS 325 MILES. FORECAST POSITION FOR 160000UTC AT 17.3N 144.5E WITH 35 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 90 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 170000UTC AT 19.8N 145.6E WITH 55 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 180000UTC AT 22.6N 147.2E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. FORECAST POSITION FOR 190000UTC AT 26.3N 150.5E WITH 125 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 200000UTC AT 28.8N 159.4E WITH 180 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 60 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=