WTJP21 RJTD 180000 WARNING 180000. WARNING VALID 190000. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 1718 TALIM (1718) 975 HPA AT 41.2N 139.7E SEA OF JAPAN MOVING NORTHNORTHEAST 37 KNOTS. POSITION FAIR. MAX WINDS 60 KNOTS. RADIUS OF OVER 50 KNOT WINDS 150 MILES EAST SEMICIRCLE AND 90 MILES ELSEWHERE. RADIUS OF OVER 30 KNOT WINDS 400 MILES SOUTHEAST SEMICIRCLE AND 270 MILES ELSEWHERE. FORECAST POSITION FOR 181200UTC AT 46.0N 142.6E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 968 HPA, MAX WINDS 60 KNOTS. BECOMING EXTRATROPICAL LOW. FORECAST POSITION FOR 190000UTC AT 49.7N 145.5E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 60 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=