WTJP21 RJTD 150600 WARNING 150600. WARNING VALID 160600. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1501 MEKKHALA (1501) 998 HPA AT 11.6N 133.1E SEA EAST OF PHILIPPINES MOVING WEST 13 KNOTS. POSITION FAIR. MAX WINDS 35 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 240 MILES NORTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 151800UTC AT 11.6N 131.3E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA, MAX WINDS 40 KNOTS NEAR CENTER. FORECAST POSITION FOR 160600UTC AT 11.5N 129.2E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 45 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 170600UTC AT 12.1N 126.2E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 50 KNOTS NEAR CENTER. FORECAST POSITION FOR 180600UTC AT 13.5N 124.0E WITH 160 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=