WTJP21 RJTD 061800 WARNING 061800. WARNING VALID 071800. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 1705 NORU (1705) 975 HPA AT 32.5N 132.9E SEA SOUTH OF JAPAN MOVING NORTHEAST 09 KNOTS. POSITION GOOD. MAX WINDS 60 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 50 MILES. RADIUS OF OVER 30 KNOT WINDS 150 MILES. FORECAST POSITION FOR 070600UTC AT 34.1N 135.0E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 55 KNOTS NEAR CENTER. FORECAST POSITION FOR 071800UTC AT 35.9N 136.9E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 45 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 081800UTC AT 38.4N 138.8E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 40 KNOTS NEAR CENTER. FORECAST POSITION FOR 091800UTC AT 40.4N 139.5E WITH 170 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=