WTJP23 RJTD 071200 WARNING 071200. WARNING VALID 081200. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. SEVERE TROPICAL STORM 1619 AERE (1619) 975 HPA AT 21.0N 115.7E SOUTH CHINA SEA MOVING WESTNORTHWEST SLOWLY. POSITION FAIR. MAX WINDS 60 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 30 MILES. RADIUS OF OVER 30 KNOT WINDS 90 MILES NORTHWEST SEMICIRCLE AND 60 MILES ELSEWHERE. FORECAST POSITION FOR 081200UTC AT 20.9N 115.6E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 75 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 091200UTC AT 20.8N 115.4E WITH 95 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 101200UTC AT 20.7N 115.2E WITH 130 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 960 HPA, MAX WINDS 80 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=