WTJP34 RJTD 272100 WARNING 272100. WARNING VALID 282100. TYPHOON WARNING. SEVERE TROPICAL STORM 1709 NESAT (1709) 985 HPA AT 20.0N 126.1E SEA SOUTH OF OKINAWA MOVING NORTHNORTHWEST 09 KNOTS. POSITION FAIR. MAX WINDS 55 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 30 MILES. RADIUS OF OVER 30 KNOT WINDS 180 MILES SOUTHWEST SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 280900UTC AT 20.8N 124.8E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 282100UTC AT 21.7N 123.2E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 65 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=