WTJP32 RJTD 241500 WARNING 241500. WARNING VALID 251500. STORM WARNING. SEVERE TROPICAL STORM 1516 ATSANI (1516) 965 HPA AT 33.4N 151.8E SEA EAST OF JAPAN MOVING EASTNORTHEAST 15 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 325 MILES SOUTHEAST SEMICIRCLE AND 300 MILES ELSEWHERE. FORECAST POSITION FOR 250300UTC AT 35.6N 156.1E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 251500UTC AT 38.3N 159.8E WITH 85 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 975 HPA, MAX WINDS 55 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=