WTJP23 RJTD 141200 WARNING 141200. WARNING VALID 151200. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1511 NANGKA (1511) 950 HPA AT 24.3N 136.6E SEA SOUTH OF JAPAN MOVING NORTH 08 KNOTS. POSITION GOOD. MAX WINDS 80 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 90 MILES. RADIUS OF OVER 30 KNOT WINDS 270 MILES NORTHEAST SEMICIRCLE AND 210 MILES ELSEWHERE. FORECAST POSITION FOR 150000UTC AT 26.2N 136.0E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 945 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 151200UTC AT 28.3N 135.0E WITH 75 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 85 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 161200UTC AT 31.5N 133.5E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 945 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 171200UTC AT 35.1N 132.0E WITH 160 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 60 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=