WTJP31 RJTD 030300 WARNING 030300. WARNING VALID 040300. TYPHOON WARNING. TYPHOON 1504 MAYSAK (1504) 950 HPA AT 14.1N 130.5E SEA EAST OF PHILIPPINES MOVING WEST 10 KNOTS. POSITION GOOD. MAX WINDS 80 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 80 MILES NORTH SEMICIRCLE AND 50 MILES ELSEWHERE. RADIUS OF OVER 30 KNOT WINDS 180 MILES NORTH SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 031500UTC AT 14.2N 128.3E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 75 KNOTS NEAR CENTER. FORECAST POSITION FOR 040300UTC AT 14.8N 125.6E WITH 75 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 965 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=