WTJP22 RJTD 250000 WARNING 250000. WARNING VALID 260000. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 1516 ATSANI (1516) 970 HPA AT 35.6N 155.7E FAR OFF EAST OF JAPAN MOVING NORTHEAST 24 KNOTS. POSITION FAIR. MAX WINDS 55 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 100 MILES SOUTHEAST SEMICIRCLE AND 70 MILES ELSEWHERE. RADIUS OF OVER 30 KNOT WINDS 325 MILES. FORECAST POSITION FOR 251200UTC AT 37.8N 159.2E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 50 KNOTS NEAR CENTER. FORECAST POSITION FOR 260000UTC AT 39.0N 162.0E WITH 85 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=