WTJP32 RJTD 030900 WARNING 030900. WARNING VALID 040900. STORM WARNING. SEVERE TROPICAL STORM 1510 LINFA (1510) 990 HPA AT 15.3N 125.9E SEA EAST OF PHILIPPINES MOVING WEST SLOWLY. POSITION FAIR. MAX WINDS 50 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 180 MILES SOUTH SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 040900UTC AT 17.0N 123.8E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 55 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=