WTJP31 RJTD 270900 WARNING 270900. WARNING VALID 280900. TYPHOON WARNING. TYPHOON 1610 LIONROCK (1610) 945 HPA AT 24.2N 134.2E SEA SOUTH OF JAPAN MOVING EASTNORTHEAST 08 KNOTS. POSITION GOOD. MAX WINDS 85 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 70 MILES. RADIUS OF OVER 30 KNOT WINDS 270 MILES SOUTHEAST SEMICIRCLE AND 210 MILES ELSEWHERE. FORECAST POSITION FOR 280900UTC AT 27.5N 138.0E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 935 HPA, MAX WINDS 90 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=