WTJP21 RJTD 241800 WARNING 241800. WARNING VALID 251800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 2630 CHAMPI (2630) DOWNGRADED FROM SEVERE TROPICAL STORM 992 HPA AT 27.9N 123.9E EAST CHINA SEA MOVING NORTHNORTHEAST 07 KNOTS. POSITION GOOD. MAX WINDS 45 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 350 MILES EAST SEMICIRCLE AND 300 MILES ELSEWHERE. FORECAST POSITION FOR 250600UTC AT 30.0N 125.4E WITH 35 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA, MAX WINDS 40 KNOTS NEAR CENTER. FORECAST POSITION FOR 251800UTC AT 31.3N 127.3E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA, MAX WINDS 35 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 261800UTC AT 32.1N 134.1E WITH 115 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1002 HPA, MAX WINDS 35 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=