WTJP21 RJTD 170000 WARNING 170000. WARNING VALID 180000. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1501 MEKKHALA (1501) UPGRADED FROM SEVERE TROPICAL STORM 965 HPA AT 11.3N 126.8E SEA EAST OF PHILIPPINES MOVING WEST 06 KNOTS. POSITION FAIR. MAX WINDS 70 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 60 MILES. RADIUS OF OVER 30 KNOT WINDS 210 MILES NORTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 171200UTC AT 12.0N 125.2E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. FORECAST POSITION FOR 180000UTC AT 12.9N 123.3E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 55 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 190000UTC AT 14.5N 121.1E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1000 HPA, MAX WINDS 35 KNOTS NEAR CENTER. FORECAST POSITION FOR 200000UTC AT 15.5N 120.0E WITH 160 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 1004 HPA. BECOMING TROPICAL DEPRESSION. JAPAN METEOROLOGICAL AGENCY.=