WTJP23 RJTD 211800 WARNING 211800. WARNING VALID 221800. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1609 MINDULLE (1609) UPGRADED FROM SEVERE TROPICAL STORM 975 HPA AT 33.1N 139.4E SEA SOUTH OF JAPAN MOVING NORTH 16 KNOTS. POSITION GOOD. MAX WINDS 65 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 50 MILES EAST SEMICIRCLE AND 20 MILES ELSEWHERE. RADIUS OF OVER 30 KNOT WINDS 150 MILES EAST SEMICIRCLE AND 75 MILES ELSEWHERE. FORECAST POSITION FOR 220600UTC AT 35.8N 139.7E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 55 KNOTS. FORECAST POSITION FOR 221800UTC AT 40.4N 141.6E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 50 KNOTS. EXTENDED OUTLOOK. FORECAST POSITION FOR 231800UTC AT 54.0N 148.0E WITH 150 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=