WTJP31 RJTD 090300 WARNING 090300. WARNING VALID 100300. TYPHOON WARNING. TYPHOON 1822 MANGKHUT (1822) 975 HPA AT 15.2N 153.8E TRUKS MOVING WEST 22 KNOTS. POSITION FAIR. MAX WINDS 65 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 60 MILES. RADIUS OF OVER 30 KNOT WINDS 180 MILES. FORECAST POSITION FOR 091500UTC AT 14.8N 150.1E WITH 40 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 70 KNOTS NEAR CENTER. FORECAST POSITION FOR 100300UTC AT 14.4N 146.8E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 950 HPA, MAX WINDS 85 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=