WTJP21 RJTD 071800 WARNING 071800. WARNING VALID 081800. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1601 NEPARTAK (1601) 930 HPA AT 22.4N 121.7E SEA SOUTH OF OKINAWA MOVING WESTNORTHWEST 09 KNOTS. POSITION GOOD. MAX WINDS 90 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 60 MILES. RADIUS OF OVER 30 KNOT WINDS 210 MILES NORTHEAST SEMICIRCLE AND 180 MILES ELSEWHERE. FORECAST POSITION FOR 080600UTC AT 23.3N 120.3E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 75 KNOTS NEAR CENTER. FORECAST POSITION FOR 081800UTC AT 24.0N 119.3E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 65 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 091800UTC AT 26.0N 117.6E WITH 95 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 101800UTC AT 27.8N 116.6E WITH 130 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=