WTJP23 RJTD 140000 WARNING 140000. WARNING VALID 150000. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1511 NANGKA (1511) 950 HPA AT 22.7N 136.5E SEA SOUTH OF JAPAN MOVING NORTH SLOWLY. POSITION GOOD. MAX WINDS 80 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 90 MILES. RADIUS OF OVER 30 KNOT WINDS 240 MILES EAST SEMICIRCLE AND 210 MILES ELSEWHERE. FORECAST POSITION FOR 141200UTC AT 24.2N 136.5E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 85 KNOTS NEAR CENTER. FORECAST POSITION FOR 150000UTC AT 25.9N 136.2E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 935 HPA, MAX WINDS 90 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 160000UTC AT 29.7N 134.1E WITH 140 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 935 HPA, MAX WINDS 90 KNOTS NEAR CENTER. FORECAST POSITION FOR 170000UTC AT 33.6N 132.2E WITH 210 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=