WTJP21 RJTD 021800 WARNING 021800. WARNING VALID 031800. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1504 MAYSAK (1504) 945 HPA AT 13.7N 132.0E SEA EAST OF PHILIPPINES MOVING WESTNORTHWEST 08 KNOTS. POSITION GOOD. MAX WINDS 85 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 70 MILES. RADIUS OF OVER 30 KNOT WINDS 180 MILES NORTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 030600UTC AT 14.1N 129.9E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 75 KNOTS NEAR CENTER. FORECAST POSITION FOR 031800UTC AT 14.4N 127.6E WITH 75 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 041800UTC AT 15.7N 123.3E WITH 140 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 051800UTC AT 18.3N 119.4E WITH 210 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 992 HPA, MAX WINDS 45 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=