WTJP21 RJTD 310600 WARNING 310600. WARNING VALID 010600. WARNING IS UPDATED EVERY 6 HOURS. TYPHOON WARNING. TYPHOON 1803 JELAWAT (1803) 950 HPA AT 18.9N 141.3E MARIANAS MOVING EASTNORTHEAST 11 KNOTS. POSITION GOOD. MAX WINDS 85 KNOTS NEAR CENTER. RADIUS OF OVER 50 KNOT WINDS 60 MILES. RADIUS OF OVER 30 KNOT WINDS 150 MILES. FORECAST POSITION FOR 311800UTC AT 19.2N 142.3E WITH 30 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 60 KNOTS NEAR CENTER. FORECAST POSITION FOR 010600UTC AT 19.4N 143.8E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 990 HPA, MAX WINDS 45 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 020600UTC AT 19.3N 146.4E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA, MAX WINDS 35 KNOTS NEAR CENTER. FORECAST POSITION FOR 030600UTC AT 19.6N 149.1E WITH 170 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 996 HPA, MAX WINDS 35 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=