WTJP32 RJTD 030900 WARNING 030900. WARNING VALID 040900. TYPHOON WARNING. TYPHOON 1618 CHABA (1618) 905 HPA AT 25.4N 126.9E SEA SOUTH OF OKINAWA MOVING NORTHNORTHWEST 10 KNOTS. POSITION GOOD. MAX WINDS 115 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 50 MILES. RADIUS OF OVER 30 KNOT WINDS 150 MILES NORTHEAST SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 032100UTC AT 27.7N 126.4E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 105 KNOTS NEAR CENTER. FORECAST POSITION FOR 040900UTC AT 30.5N 126.3E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 90 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=