FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN085 NM EITHER SIDE OF A LINE FROM 20.0N 115.0E TO 22.1N 118.0EWITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFYISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME.WINDS IN THE AREA ARE ESTIMATED TO BE 15 TO 20 KNOTS. METSAT IM-AGERY AT 262330Z INDICATES THAT A CIRCULATION CENTER IS LOCATEDNEAR 20.4N 115.3E. THE SYSTEM IS MOVING NORTH-NORTHEASTWARD AT04 KNOTS.