WTPN21 PGTW 010300 RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 140 NM EITHER SIDE OF A LINE FROM 11.8N 126.6E TO 16.4N 123.7E WITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME. WINDS IN THE AREA ARE ESTIMATED TO BE 18 TO 23 KNOTS. METSAT IMAGERY AT 010000Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 12.0N 126.4E. THE SYSTEM IS MOVING WEST-NORTHWESTWARD AT 14 KNOTS. 2. REMARKS: MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1005 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS HIGH. 3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 020300Z. // 9224083018 92N1328E 15 9224083100 98N1319E 15 9224083106 107N1311E 20 9224083112 113N1294E 20 9224083118 115N1277E 20 9224090100 120N1264E 20 NNNN