WTJP31 RJTD 290300 WARNING 290300. WARNING VALID 300300. TYPHOON WARNING. TYPHOON 1610 LIONROCK (1610) 945 HPA AT 30.8N 142.1E SEA EAST OF JAPAN MOVING NORTHEAST 13 KNOTS. POSITION GOOD. MAX WINDS 85 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 80 MILES SOUTHEAST SEMICIRCLE AND 60 MILES ELSEWHERE. RADIUS OF OVER 30 KNOT WINDS 350 MILES SOUTHEAST SEMICIRCLE AND 210 MILES ELSEWHERE. FORECAST POSITION FOR 291500UTC AT 33.3N 143.4E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 950 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 300300UTC AT 36.4N 142.7E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=