WTJP21 RJTD 220600 WARNING 220600. WARNING VALID 230600. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 2524 FENGSHEN (2524) 990 HPA AT 17.1N 110.1E SOUTH CHINA SEA MOVING WESTSOUTHWEST 06 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 150 MILES ELSEWHERE. FORECAST POSITION FOR 221800UTC AT 16.6N 108.9E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 230600UTC AT 16.0N 107.9E WITH 65 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1008 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=