WTJP22 RJTD 311800 WARNING 311800. WARNING VALID 011800. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 2421 KONG-REY (2421) 990 HPA AT 25.0N 120.2E TAIWAN STRAIT MOVING NORTH 10 KNOTS. POSITION FAIR. MAX WINDS 55 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 30 MILES. RADIUS OF OVER 30 KNOT WINDS 240 MILES SOUTHEAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 010600UTC AT 28.0N 121.5E WITH 25 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 994 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 011800UTC AT 30.3N 124.3E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA, MAX WINDS 40 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=