WTJP21 RJTD 240000 WARNING 240000. WARNING VALID 250000. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 2410 SHANSHAN (2410) UPGRADED FROM SEVERE TROPICAL STORM 980 HPA AT 20.0N 141.3E OGASAWARA SHOTO MOVING NORTH 13 KNOTS. POSITION FAIR. MAX WINDS 65 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 30 MILES. RADIUS OF OVER 30 KNOT WINDS 180 MILES EAST SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 241200UTC AT 22.4N 140.9E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 65 KNOTS NEAR CENTER. FORECAST POSITION FOR 250000UTC AT 24.7N 139.7E WITH 57 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 70 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 260000UTC AT 28.0N 135.5E WITH 85 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 75 KNOTS NEAR CENTER. FORECAST POSITION FOR 270000UTC AT 30.2N 133.3E WITH 120 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 950 HPA, MAX WINDS 85 KNOTS NEAR CENTER. FORECAST POSITION FOR 280000UTC AT 33.8N 136.2E WITH 150 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 290000UTC AT 41.9N 140.0E WITH 250 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=