WTJP32 RJTD 160300 WARNING 160300. WARNING VALID 170300. STORM WARNING. TROPICAL STORM 1721 LAN (1721) 996 HPA AT 10.7N 135.7E SEA EAST OF PHILIPPINES MOVING WESTNORTHWEST 07 KNOTS. POSITION FAIR. MAX WINDS 40 KNOTS NEAR CENTER. RADIUS OF OVER 30 KNOT WINDS 120 MILES. FORECAST POSITION FOR 170300UTC AT 10.9N 133.3E WITH 50 MILES RADIUS OF 70 PERCENT PROBABILITY CIRCLE. 980 HPA, MAX WINDS 60 KNOTS NEAR CENTER. JAPAN METEOROLOGICAL AGENCY.=