WTJP31 RJTD 131500 WARNING 131500. WARNING VALID 141500. STORM WARNING. TROPICAL STORM 1503 BAVI (1503) 992 HPA AT 10.3N 158.2E TRUKS MOVING NORTHWEST 14 KNOTS. POSITION FAIR. MAX WINDS 40 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 270 MILES NORTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 140300UTC AT 11.4N 154.2E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 141500UTC AT 12.1N 150.9E WITH 75 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 50 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=