WTJP31 RJTD 170900 WARNING 170900. WARNING VALID 180900. STORM WARNING. SEVERE TROPICAL STORM 1718 TALIM (1718) 975 HPA AT 33.3N 133.2E SHIKOKU MOVING NORTHEAST 20 KNOTS. POSITION GOOD. MAX WINDS 60 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 100 MILES SOUTHEAST SEMICIRCLE AND 70 MILES ELSEWHERE. RADIUS OF OVER 30 KNOT WINDS 270 MILES. FORECAST POSITION FOR 172100UTC AT 38.9N 138.6E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 60 KNOTS. FORECAST POSITION FOR 180900UTC AT 44.7N 141.8E WITH 80 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 60 KNOTS. JAPAN METEOROLOGICAL AGENCY.=