WTJP22 RJTD 050600 WARNING 050600. WARNING VALID 060600. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1813 SHANSHAN (1813) 970 HPA AT 23.8N 147.5E OGASAWARA SHOTO MOVING NORTH 07 KNOTS. POSITION FAIR. MAX WINDS 70 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 55 MILES. RADIUS OF OVER 30 KNOT WINDS 300 MILES SOUTHEAST SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 051800UTC AT 25.6N 146.7E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 060600UTC AT 27.6N 145.5E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 950 HPA, MAX WINDS 85 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 070600UTC AT 30.9N 143.0E WITH 95 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 080600UTC AT 32.9N 140.1E WITH 130 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=