WTJP31 RJTD 281500 WARNING 281500. WARNING VALID 291500. STORM WARNING. TROPICAL STORM 1803 JELAWAT (1803) 992 HPA AT 14.9N 135.3E SEA EAST OF PHILIPPINES MOVING NORTH 07 KNOTS. POSITION FAIR. MAX WINDS 45 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 180 MILES NORTH SEMICIRCLE AND 120 MILES ELSEWHERE. FORECAST POSITION FOR 291500UTC AT 16.1N 136.0E WITH 60 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 60 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=