WTJP32 RJTD 050300 WARNING 050300. WARNING VALID 060300. STORM WARNING. TROPICAL STORM 1523 CHOI-WAN (1523) 975 HPA AT 21.7N 154.4E SEA AROUND OF MINAMITORISIMA MOVING WEST 11 KNOTS. POSITION FAIR. MAX WINDS 40 KNOTS. RADIUS OF OVER 30 KNOT WINDS 425 MILES NORTH SEMICIRCLE AND 325 MILES ELSEWHERE. FORECAST POSITION FOR 051500UTC AT 22.9N 152.3E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 50 KNOTS NEAR CENTER. FORECAST POSITION FOR 060300UTC AT 24.1N 150.9E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 60 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=