WTJP21 RJTD 291800 WARNING 291800. WARNING VALID 301800. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1610 LIONROCK (1610) 965 HPA AT 33.4N 143.9E SEA EAST OF JAPAN MOVING NORTHNORTHEAST 11 KNOTS. POSITION FAIR. MAX WINDS 70 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 90 MILES EAST SEMICIRCLE AND 40 MILES ELSEWHERE. RADIUS OF OVER 30 KNOT WINDS 300 MILES SOUTHEAST SEMICIRCLE AND 210 MILES ELSEWHERE. FORECAST POSITION FOR 300600UTC AT 37.7N 142.0E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 65 KNOTS NEAR CENTER. FORECAST POSITION FOR 301800UTC AT 43.5N 135.8E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 55 KNOTS. EXTENDED OUTLOOK. FORECAST POSITION FOR 311800UTC AT 44.0N 124.0E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 986 HPA, MAX WINDS 30 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=