WTPN21 PHNC 231330 RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 120 NM EITHER SIDE OF A LINE FROM 11.6N 120.6W TO 13.9N 122.9W 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 25 TO 30 KNOTS. METSAT IMAGERY AT 231300Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 11.8N 120.9W. THE SYSTEM IS MOVING SOUTHWESTWARD AT 01 KNOTS. 2. REMARKS: MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 25 TO 30 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1000 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 241330Z. // 9423111718 106N1144W 25 9423111800 105N1147W 25 9423111806 104N1150W 25 9423111812 103N1154W 25 9423111818 102N1158W 25 9423111900 101N1162W 25 9423111906 100N1166W 25 9423111912 99N1170W 25 9423111918 98N1174W 25 9423112000 96N1179W 25 9423112006 93N1184W 25 9423112012 90N1188W 30 9423112018 92N1190W 25 9423112100 95N1190W 25 9423112106 98N1191W 25 9423112112 101N1197W 25 9423112118 103N1202W 25 9423112200 104N1205W 25 9423112206 108N1205W 25 9423112212 112N1205W 25 9423112218 117N1207W 25 9423112300 118N1207W 25 9423112306 119N1208W 25 9423112312 118N1209W 30 NNNN