WTJP31 RJTD 180300 WARNING 180300. WARNING VALID 190300. TYPHOON WARNING. TYPHOON 1515 GONI (1515) 935 HPA AT 18.3N 135.3E SEA EAST OF PHILIPPINES MOVING WEST 16 KNOTS. POSITION GOOD. MAX WINDS 95 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 80 MILES. RADIUS OF OVER 30 KNOT WINDS 180 MILES. FORECAST POSITION FOR 181500UTC AT 18.8N 132.2E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 930 HPA, MAX WINDS 95 KNOTS NEAR CENTER. FORECAST POSITION FOR 190300UTC AT 19.1N 129.3E WITH 75 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 925 HPA, MAX WINDS 100 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=