WTJP31 RJTD 060900 WARNING 060900. WARNING VALID 070900. STORM WARNING. SEVERE TROPICAL STORM 1705 NORU (1705) 975 HPA AT 31.4N 131.8E SEA SOUTH OF JAPAN MOVING NORTHEAST 07 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 062100UTC AT 32.7N 133.0E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 070900UTC AT 34.6N 134.9E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 55 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=