WTJP21 RJTD 160600 WARNING 160600. WARNING VALID 170600. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1501 MEKKHALA (1501) 992 HPA AT 11.3N 129.3E SEA EAST OF PHILIPPINES MOVING WESTSOUTHWEST 11 KNOTS. POSITION FAIR. MAX WINDS 45 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 210 MILES NORTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 161800UTC AT 11.4N 127.6E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. FORECAST POSITION FOR 170600UTC AT 11.8N 126.3E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 180600UTC AT 13.3N 123.2E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 994 HPA, MAX WINDS 40 KNOTS NEAR CENTER. FORECAST POSITION FOR 190600UTC AT 15.4N 120.7E WITH 160 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1002 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=