WTJP21 RJTD 101800 WARNING 101800. WARNING VALID 111800. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 2422 YINXING (2422) DOWNGRADED FROM TYPHOON 985 HPA AT 18.8N 112.8E SOUTH CHINA SEA ALMOST STATIONARY. POSITION GOOD. MAX WINDS 60 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 30 MILES. RADIUS OF OVER 30 KNOT WINDS 180 MILES NORTH SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 110600UTC AT 16.7N 110.9E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 50 KNOTS NEAR CENTER. FORECAST POSITION FOR 111800UTC AT 15.1N 110.1E WITH 42 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA, MAX WINDS 40 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 121800UTC AT 13.3N 108.8E WITH 85 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1006 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=