WTJP31 RJTD 150300 WARNING 150300. WARNING VALID 160300. TYPHOON WARNING. TYPHOON 2604 SINLAKU (2604) 930 HPA AT 15.7N 145.0E MARIANAS MOVING NORTHWEST SLOWLY. POSITION GOOD. MAX WINDS 95 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 90 MILES. RADIUS OF OVER 30 KNOT WINDS 325 MILES. FORECAST POSITION FOR 160300UTC AT 17.6N 144.5E WITH 35 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 90 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=