WTJP23 RJTD 121200 WARNING 121200. WARNING VALID 131200. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1511 NANGKA (1511) 950 HPA AT 18.7N 137.5E SEA EAST OF PHILIPPINES ALMOST STATIONARY. POSITION GOOD. MAX WINDS 80 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 90 MILES. RADIUS OF OVER 30 KNOT WINDS 300 MILES. FORECAST POSITION FOR 131200UTC AT 21.2N 137.3E WITH 85 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 935 HPA, MAX WINDS 95 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 141200UTC AT 24.3N 137.1E WITH 160 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 100 KNOTS NEAR CENTER. FORECAST POSITION FOR 151200UTC AT 28.8N 135.4E WITH 210 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 930 HPA, MAX WINDS 95 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=