WTJP31 RJTD 282100 WARNING 282100. WARNING VALID 292100. TYPHOON WARNING. TYPHOON 1504 MAYSAK (1504) 970 HPA AT 07.4N 152.8E TRUKS MOVING WEST 07 KNOTS. POSITION FAIR. MAX WINDS 70 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 50 MILES. RADIUS OF OVER 30 KNOT WINDS 180 MILES. FORECAST POSITION FOR 292100UTC AT 08.2N 148.0E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 950 HPA, MAX WINDS 85 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=