WTJP21 RJTD 110000 WARNING 110000. WARNING VALID 120000. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 1502 HIGOS (1502) 985 HPA AT 15.9N 154.5E SEA AROUND OF MINAMITORISIMA MOVING NORTHNORTHEAST 06 KNOTS. POSITION POOR. MAX WINDS 55 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 50 MILES. RADIUS OF OVER 30 KNOT WINDS 150 MILES NORTH SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 120000UTC AT 18.1N 154.4E WITH 85 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA, MAX WINDS 35 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 130000UTC AT 20.8N 156.0E WITH 160 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1006 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=