WTJP22 RJTD 071200 WARNING 071200. WARNING VALID 081200. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1813 SHANSHAN (1813) 970 HPA AT 32.0N 143.1E SEA EAST OF JAPAN MOVING NORTHWEST 10 KNOTS. POSITION GOOD. MAX WINDS 70 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 55 MILES. RADIUS OF OVER 30 KNOT WINDS 300 MILES EAST SEMICIRCLE AND 210 MILES ELSEWHERE. FORECAST POSITION FOR 080000UTC AT 33.3N 141.7E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 70 KNOTS NEAR CENTER. FORECAST POSITION FOR 081200UTC AT 34.5N 140.9E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 70 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 091200UTC AT 37.8N 141.8E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 55 KNOTS NEAR CENTER. FORECAST POSITION FOR 101200UTC AT 42.2N 153.9E WITH 220 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 50 KNOTS. BECOMING EXTRATROPICAL LOW. JAPAN METEOROLOGICAL AGENCY.=