WTJP31 RJTD 230900 WARNING 230900. WARNING VALID 240900. TYPHOON WARNING. SEVERE TROPICAL STORM 1705 NORU (1705) 985 HPA AT 28.0N 151.3E SEA AROUND OF MINAMITORISIMA ALMOST STATIONARY. POSITION GOOD. MAX WINDS 60 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 40 MILES. RADIUS OF OVER 30 KNOT WINDS 180 MILES. FORECAST POSITION FOR 240900UTC AT 26.4N 154.3E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=