WTJP31 RJTD 300900 WARNING 300900. WARNING VALID 310900. TYPHOON WARNING. TYPHOON 1504 MAYSAK (1504) 955 HPA AT 08.8N 145.3E CAROLINES MOVING WEST 12 KNOTS. POSITION GOOD. MAX WINDS 80 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 60 MILES. RADIUS OF OVER 30 KNOT WINDS 150 MILES. FORECAST POSITION FOR 302100UTC AT 09.0N 142.7E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 945 HPA, MAX WINDS 85 KNOTS NEAR CENTER. FORECAST POSITION FOR 310900UTC AT 09.3N 140.2E WITH 75 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 940 HPA, MAX WINDS 90 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=