WTJP21 RJTD 291200 WARNING 291200. WARNING VALID 301200. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1610 LIONROCK (1610) 960 HPA AT 32.4N 143.4E SEA EAST OF JAPAN MOVING NORTHEAST 14 KNOTS. POSITION FAIR. MAX WINDS 75 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 60 MILES. RADIUS OF OVER 30 KNOT WINDS 240 MILES SOUTH SEMICIRCLE AND 200 MILES ELSEWHERE. FORECAST POSITION FOR 300000UTC AT 35.8N 142.7E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. FORECAST POSITION FOR 301200UTC AT 40.8N 140.2E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 65 KNOTS. EXTENDED OUTLOOK. FORECAST POSITION FOR 311200UTC AT 44.5N 125.0E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 984 HPA, MAX WINDS 30 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=