WTJP34 RJTD 271500 WARNING 271500. WARNING VALID 281500. TYPHOON WARNING. SEVERE TROPICAL STORM 1709 NESAT (1709) 985 HPA AT 19.3N 126.5E SEA EAST OF PHILIPPINES 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 280300UTC AT 20.6N 125.3E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 281500UTC AT 21.5N 123.9E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 65 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=