WTJP22 RJTD 020600 WARNING 020600. WARNING VALID 030600. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 2417 JEBI (2417) 992 HPA AT 45.1N 153.4E SEA AROUND KURILS MOVING NORTHEAST 40 KNOTS. POSITION FAIR. MAX WINDS 50 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 180 MILES SOUTHEAST SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 021800UTC AT 52.0N 162.0E WITH 45 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA, MAX WINDS 45 KNOTS. BECOMING EXTRATROPICAL LOW. FORECAST POSITION FOR 030600UTC AT 53.0N 176.0E WITH 65 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA, MAX WINDS 40 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=