WTJP31 RJTD 180300 WARNING 180300. WARNING VALID 190300. STORM WARNING. SEVERE TROPICAL STORM 1718 TALIM (1718) 975 HPA AT 42.5N 140.8E HOKKAIDO MOVING NORTHNORTHEAST 28 KNOTS. POSITION FAIR. MAX WINDS 60 KNOTS. RADIUS OF OVER 50 KNOT WINDS 180 MILES EAST SEMICIRCLE AND 90 MILES ELSEWHERE. RADIUS OF OVER 30 KNOT WINDS 475 MILES SOUTHEAST SEMICIRCLE AND 210 MILES ELSEWHERE. FORECAST POSITION FOR 181500UTC AT 47.0N 143.6E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 968 HPA, MAX WINDS 60 KNOTS. BECOMING EXTRATROPICAL LOW. FORECAST POSITION FOR 190300UTC AT 50.5N 145.5E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 55 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=