WTJP32 RJTD 131500 WARNING 131500. WARNING VALID 141500. STORM WARNING. SEVERE TROPICAL STORM 1815 LEEPI (1815) 996 HPA AT 27.7N 137.7E SEA SOUTH OF JAPAN MOVING NORTHWEST 11 KNOTS. POSITION FAIR. MAX WINDS 50 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 150 MILES EAST SEMICIRCLE AND 90 MILES ELSEWHERE. FORECAST POSITION FOR 140300UTC AT 29.8N 134.6E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA, MAX WINDS 50 KNOTS NEAR CENTER. FORECAST POSITION FOR 141500UTC AT 31.7N 130.0E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA, MAX WINDS 45 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=