WTXS21 PGTW 171330 RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 120 NM EITHER SIDE OF A LINE FROM 10.9S 129.5E TO 8.6S 133.1E 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 28 TO 33 KNOTS. METSAT IMAGERY AT 171200Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 10.7S 129.7E. THE SYSTEM IS MOVING EAST-NORTHEASTWARD AT 07 KNOTS. 2. REMARKS: MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 28 TO 33 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 998 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 181330Z. // 9725111300 105S1154E 15 9725111306 105S1156E 15 9725111312 106S1161E 15 9725111318 108S1166E 15 9725111400 109S1170E 20 9725111406 114S1179E 20 9725111412 121S1187E 20 9725111418 121S1196E 20 9725111500 119S1211E 20 9725111506 116S1224E 20 9725111512 115S1239E 20 9725111518 115S1252E 25 9725111600 115S1262E 25 9725111606 114S1268E 25 9725111612 111S1274E 25 9725111618 110S1279E 25 9725111700 110S1284E 25 9725111706 109S1290E 30 9725111712 107S1297E 30 ????