WTXS21 PGTW 280100 RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 120 NM EITHER SIDE OF A LINE FROM 12.2S 120.0E TO 15.4S 120.0E 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 23 TO 28 KNOTS. METSAT IMAGERY AT 280030Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 12.4S 120.0E. THE SYSTEM IS MOVING SOUTHWARD AT 03 KNOTS. 2. REMARKS: MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 28 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1001 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 290100Z. // 9625122512 128S1171E 15 9625122518 128S1175E 15 9625122600 127S1178E 20 9625122606 125S1181E 20 9625122612 122S1183E 20 9625122618 119S1186E 20 9625122700 118S1189E 20 9625122706 118S1193E 20 9625122712 119S1198E 20 9625122718 121S1200E 25 9625122800 124S1200E 25 ????