WTJP21 RJTD 220600 WARNING 220600. WARNING VALID 230600. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. TROPICAL STORM 2410 SHANSHAN (2410) 1000 HPA AT 16.6N 141.4E MARIANAS ALMOST STATIONARY. POSITION FAIR. MAX WINDS 40 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 120 MILES EAST SEMICIRCLE AND 90 MILES ELSEWHERE. FORECAST POSITION FOR 230600UTC AT 18.2N 140.7E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 55 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 240600UTC AT 21.4N 140.0E WITH 85 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 250600UTC AT 25.5N 138.4E WITH 120 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 65 KNOTS NEAR CENTER. FORECAST POSITION FOR 260600UTC AT 29.2N 136.1E WITH 150 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 75 KNOTS NEAR CENTER. FORECAST POSITION FOR 270600UTC AT 33.8N 136.2E WITH 180 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 75 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=