WTJP32 RJTD 032100 WARNING 032100. WARNING VALID 042100. STORM WARNING. SEVERE TROPICAL STORM 1510 LINFA (1510) 985 HPA AT 15.3N 124.3E SEA EAST OF PHILIPPINES MOVING WEST 08 KNOTS. POSITION FAIR. MAX WINDS 50 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 120 MILES SOUTH SEMICIRCLE AND 60 MILES ELSEWHERE. FORECAST POSITION FOR 042100UTC AT 17.3N 122.9E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 55 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=