WTJP21 RJTD 141800 WARNING 141800. WARNING VALID 151800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1817 HECTOR (1817) 1004 HPA AT 27.7N 172.6E MIDWAYS MOVING WESTNORTHWEST 15 KNOTS. POSITION FAIR. MAX WINDS 35 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 90 MILES NORTH SEMICIRCLE AND 60 MILES ELSEWHERE. FORECAST POSITION FOR 150600UTC AT 29.3N 169.5E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1004 HPA, MAX WINDS 35 KNOTS NEAR CENTER. FORECAST POSITION FOR 151800UTC AT 30.9N 166.7E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1004 HPA, MAX WINDS 35 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 161800UTC AT 34.2N 164.7E WITH 95 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1008 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=