WTJP31 RJTD 082100 WARNING 082100. WARNING VALID 092100. STORM WARNING. SEVERE TROPICAL STORM 1601 NEPARTAK (1601) 980 HPA AT 23.9N 119.2E TAIWAN STRAIT MOVING NORTHWEST 06 KNOTS. POSITION FAIR. MAX WINDS 60 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 50 MILES. RADIUS OF OVER 30 KNOT WINDS 180 MILES NORTHEAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 092100UTC AT 26.0N 117.2E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 40 KNOTS. JAPAN METEOROLOGICAL AGENCY.=