WTJP32 RJTD 250900 WARNING 250900. WARNING VALID 260900. STORM WARNING. SEVERE TROPICAL STORM 1727 TEMBIN (1727) 990 HPA AT 08.6N 108.3E SOUTH CHINA SEA MOVING WESTNORTHWEST 12 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 NORTHWEST SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 252100UTC AT 08.3N 106.1E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 994 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 260900UTC AT 08.2N 103.9E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA, MAX WINDS 35 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=