WTJP31 RJTD 010900 WARNING 010900. WARNING VALID 020900. TYPHOON WARNING. TYPHOON 1504 MAYSAK (1504) 925 HPA AT 11.4N 136.2E SEA EAST OF PHILIPPINES MOVING WESTNORTHWEST 12 KNOTS. POSITION GOOD. MAX WINDS 100 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 70 MILES. RADIUS OF OVER 30 KNOT WINDS 210 MILES NORTH SEMICIRCLE AND 180 MILES ELSEWHERE. FORECAST POSITION FOR 012100UTC AT 12.1N 134.5E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 95 KNOTS NEAR CENTER. FORECAST POSITION FOR 020900UTC AT 12.8N 133.1E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 85 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=