WTJP22 RJTD 201800 WARNING 201800. WARNING VALID 211800. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1721 LAN (1721) 925 HPA AT 20.7N 130.7E SEA SOUTH OF JAPAN MOVING NORTHNORTHEAST 08 KNOTS. POSITION GOOD. MAX WINDS 95 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 150 MILES. RADIUS OF OVER 30 KNOT WINDS 500 MILES SOUTH SEMICIRCLE AND 400 MILES ELSEWHERE. FORECAST POSITION FOR 210600UTC AT 23.1N 131.3E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 95 KNOTS NEAR CENTER. FORECAST POSITION FOR 211800UTC AT 25.9N 132.1E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 95 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 221800UTC AT 33.6N 136.9E WITH 150 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 950 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 231800UTC AT 43.7N 151.0E WITH 220 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 55 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=