WTJP22 RJTD 151200 WARNING 151200. WARNING VALID 161200. WARNING IS UPDATED EVERY 6 HOURS. STORM WARNING. SEVERE TROPICAL STORM 1719 DOKSURI (1719) DOWNGRADED FROM TYPHOON 980 HPA AT 18.1N 104.7E LAOS MOVING WEST 12 KNOTS. POSITION FAIR. MAX WINDS 60 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 50 MILES. RADIUS OF OVER 30 KNOT WINDS 210 MILES NORTH SEMICIRCLE AND 180 MILES ELSEWHERE. FORECAST POSITION FOR 160000UTC AT 18.8N 101.3E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 998 HPA, MAX WINDS 35 KNOTS NEAR CENTER. FORECAST POSITION FOR 161200UTC AT 20.4N 098.5E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1002 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=