WTJP24 RJTD 280600 WARNING 280600. WARNING VALID 290600. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1709 NESAT (1709) UPGRADED FROM SEVERE TROPICAL STORM 975 HPA AT 20.2N 124.9E SEA SOUTH OF OKINAWA MOVING WEST 07 KNOTS. POSITION FAIR. MAX WINDS 65 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 45 MILES. RADIUS OF OVER 30 KNOT WINDS 210 MILES SOUTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 281800UTC AT 21.1N 123.5E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 70 KNOTS NEAR CENTER. FORECAST POSITION FOR 290600UTC AT 22.6N 121.6E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 75 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 300600UTC AT 25.1N 118.4E WITH 95 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 310600UTC AT 27.1N 117.8E WITH 130 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=