WTJP34 RJTD 280300 WARNING 280300. WARNING VALID 290300. TYPHOON WARNING. SEVERE TROPICAL STORM 1709 NESAT (1709) 980 HPA AT 20.0N 125.0E SEA SOUTH OF OKINAWA MOVING WESTNORTHWEST 08 KNOTS. POSITION FAIR. MAX WINDS 60 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 40 MILES. RADIUS OF OVER 30 KNOT WINDS 210 MILES SOUTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 281500UTC AT 21.2N 123.8E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 65 KNOTS NEAR CENTER. FORECAST POSITION FOR 290300UTC AT 22.4N 122.3E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=