WTXS21 PGTW 280130MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC//SUBJ/TROPICAL CYCLONE FORMATION ALERT REISSUED//REF/A/JOINT TYPHOON WRNCEN PEARL HARBOR HI/270121Z FEB 12//AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT (WTXS21 PGTW 270130)//RMKS/1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN090 NM EITHER SIDE OF A LINE FROM 16.0S 45.1E TO 17.3S 41.2EWITHIN 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 22 TO 28 KNOTS. METSAT IM-AGERY AND SYNOPTIC DATA AT 272330Z INDICATE THAT A CIRCULATIONCENTER IS LOCATED NEAR 16.1S 45.2E. THE SYSTEM IS MOVING WEST-SOUTHWESTWARD AT 07 KNOTS.