WTJP22 RJTD 151800 WARNING 151800. WARNING VALID 161800. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1507 DOLPHIN (1507) 945 HPA AT 14.8N 143.5E MARIANAS MOVING NORTHWEST 13 KNOTS. POSITION GOOD. MAX WINDS 85 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 50 MILES. RADIUS OF OVER 30 KNOT WINDS 240 MILES NORTHEAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 160600UTC AT 15.9N 141.5E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 90 KNOTS NEAR CENTER. FORECAST POSITION FOR 161800UTC AT 17.0N 139.8E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 935 HPA, MAX WINDS 90 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 171800UTC AT 19.8N 138.5E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 930 HPA, MAX WINDS 95 KNOTS NEAR CENTER. FORECAST POSITION FOR 181800UTC AT 22.8N 139.3E WITH 220 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 930 HPA, MAX WINDS 95 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=