WTJP32 RJTD 221500 WARNING 221500. WARNING VALID 231500. TYPHOON WARNING. TYPHOON 1721 LAN (1721) 950 HPA AT 33.4N 137.4E SEA SOUTH OF JAPAN MOVING NORTHNORTHEAST 29 KNOTS. POSITION GOOD. MAX WINDS 75 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 150 MILES. RADIUS OF OVER 30 KNOT WINDS 700 MILES WEST SEMICIRCLE AND 400 MILES ELSEWHERE. FORECAST POSITION FOR 230300UTC AT 38.7N 142.5E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 231500UTC AT 43.1N 151.0E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 55 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=