WTJP31 RJTD 301500 WARNING 301500. WARNING VALID 311500. TYPHOON WARNING. TYPHOON 1803 JELAWAT (1803) 935 HPA AT 17.0N 139.5E SEA EAST OF PHILIPPINES MOVING EASTNORTHEAST 11 KNOTS. POSITION GOOD. MAX WINDS 95 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 70 MILES. RADIUS OF OVER 30 KNOT WINDS 180 MILES NORTH SEMICIRCLE AND 150 MILES ELSEWHERE. FORECAST POSITION FOR 310300UTC AT 18.3N 141.1E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 955 HPA, MAX WINDS 80 KNOTS NEAR CENTER. FORECAST POSITION FOR 311500UTC AT 18.7N 142.3E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 970 HPA, MAX WINDS 70 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=