WTJP33 RJTD 160300 WARNING 160300. WARNING VALID 170300. TYPHOON WARNING. TYPHOON 1511 NANGKA (1511) 960 HPA AT 31.4N 134.6E SEA SOUTH OF JAPAN MOVING NORTHNORTHWEST 10 KNOTS. POSITION GOOD. MAX WINDS 75 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 90 MILES. RADIUS OF OVER 30 KNOT WINDS 375 MILES EAST SEMICIRCLE AND 240 MILES ELSEWHERE. FORECAST POSITION FOR 161500UTC AT 33.6N 133.8E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 70 KNOTS NEAR CENTER. FORECAST POSITION FOR 170300UTC AT 35.4N 133.0E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 55 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=