WTJP31 RJTD 311500 WARNING 311500. WARNING VALID 011500. TYPHOON WARNING. TYPHOON 1504 MAYSAK (1504) 905 HPA AT 10.3N 139.2E SEA EAST OF PHILIPPINES MOVING WEST 14 KNOTS. POSITION GOOD. MAX WINDS 115 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 90 MILES. RADIUS OF OVER 30 KNOT WINDS 210 MILES NORTH SEMICIRCLE AND 180 MILES ELSEWHERE. FORECAST POSITION FOR 010300UTC AT 10.8N 137.1E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 900 HPA, MAX WINDS 115 KNOTS NEAR CENTER. FORECAST POSITION FOR 011500UTC AT 11.3N 135.5E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 895 HPA, MAX WINDS 120 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=