WTJP22 RJTD 021800 WARNING 021800. WARNING VALID 031800. WARNING IS UPDATED EVERY 6 HOURS. GALE WARNING. TROPICAL STORM 1510 LINFA (1510) 998 HPA AT 15.9N 127.9E SEA EAST OF PHILIPPINES MOVING WESTNORTHWEST 10 KNOTS. POSITION FAIR. MAX WINDS 35 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 90 MILES. FORECAST POSITION FOR 031800UTC AT 16.7N 125.7E WITH 70 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 994 HPA, MAX WINDS 40 KNOTS NEAR CENTER. EXTENDED OUTLOOK. FORECAST POSITION FOR 041800UTC AT 17.7N 123.7E WITH 110 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 985 HPA, MAX WINDS 55 KNOTS NEAR CENTER. FORECAST POSITION FOR 051800UTC AT 19.1N 122.2E WITH 160 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 60 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=