WTJP32 RJTD 292100 WARNING 292100. WARNING VALID 302100. STORM WARNING. TROPICAL STORM 1618 CHABA (1618) 992 HPA AT 13.4N 138.8E SEA EAST OF PHILIPPINES MOVING WEST 12 KNOTS. POSITION FAIR. MAX WINDS 45 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 100 MILES. FORECAST POSITION FOR 300900UTC AT 14.8N 137.2E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 55 KNOTS NEAR CENTER. FORECAST POSITION FOR 302100UTC AT 16.3N 135.7E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 60 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=