WTJP21 RJTD 210000 WARNING 210000. WARNING VALID 220000. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. TROPICAL STORM 2506 WIPHA (2506) DOWNGRADED FROM SEVERE TROPICAL STORM 985 HPA AT 21.6N 109.8E SOUTH CHINA MOVING WEST 11 KNOTS. POSITION FAIR. MAX WINDS 45 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 240 MILES SOUTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 211200UTC AT 20.9N 108.7E WITH 35 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 50 KNOTS NEAR CENTER. FORECAST POSITION FOR 220000UTC AT 20.5N 107.3E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 60 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 230000UTC AT 20.1N 104.2E WITH 85 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=