WTJP31 RJTD 282100 WARNING 282100. WARNING VALID 292100. TYPHOON WARNING. TYPHOON 1610 LIONROCK (1610) 940 HPA AT 30.0N 141.1E SEA EAST OF JAPAN MOVING NORTHEAST 15 KNOTS. POSITION GOOD. MAX WINDS 90 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 290900UTC AT 32.1N 143.1E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 945 HPA, MAX WINDS 85 KNOTS NEAR CENTER. FORECAST POSITION FOR 292100UTC AT 34.8N 143.3E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 75 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=