WTJP21 RJTD 030000 WARNING 030000. WARNING VALID 040000. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1801 BOLAVEN (1801) UPGRADED FROM TROPICAL DEPRESSION 1002 HPA AT 10.7N 116.1E SOUTH CHINA SEA MOVING WESTNORTHWEST 18 KNOTS. POSITION FAIR. MAX WINDS 35 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 60 MILES. FORECAST POSITION FOR 031200UTC AT 10.5N 113.1E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1002 HPA, MAX WINDS 35 KNOTS NEAR CENTER. FORECAST POSITION FOR 040000UTC AT 10.6N 111.1E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA, MAX WINDS 35 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 050000UTC AT 11.0N 107.0E WITH 95 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1008 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=