WTJP21 RJTD 111200 WARNING 111200. WARNING VALID 121200. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 2405 MARIA (2405) 980 HPA AT 37.7N 143.4E SEA EAST OF JAPAN MOVING WEST SLOWLY. POSITION GOOD. MAX WINDS 50 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 240 MILES NORTHEAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 120000UTC AT 39.2N 141.5E WITH 25 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 50 KNOTS NEAR CENTER. FORECAST POSITION FOR 121200UTC AT 40.4N 139.2E WITH 35 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 994 HPA, MAX WINDS 35 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 131200UTC AT 41.1N 138.4E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1002 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=