WTJP32 RJTD 311500 WARNING 311500. WARNING VALID 011500. STORM WARNING. SEVERE TROPICAL STORM 0921 MIRINAE (0921) 985 HPA AT 14.2N 117.3E SOUTH CHINA SEA MOVING WEST 13 KNOTS. POSITION FAIR. MAX WINDS 50 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 160 MILES NORTH SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 011500UTC AT 13.4N 112.2E WITH 75 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 50 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=