WTJP22 RJTD 041200 WARNING 041200. WARNING VALID 051200. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 2631 IN-FA (2631) 970 HPA AT 25.8N 138.6E SEA SOUTH OF JAPAN MOVING NORTH 09 KNOTS. POSITION GOOD. MAX WINDS 65 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 70 MILES EAST SEMICIRCLE AND 60 MILES ELSEWHERE. RADIUS OF OVER 30 KNOT WINDS 180 MILES EAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 050000UTC AT 28.0N 139.6E WITH 25 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 051200UTC AT 31.6N 143.3E WITH 42 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 55 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 061200UTC AT 45.6N 161.8E WITH 85 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 976 HPA, MAX WINDS 55 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=