WTPN21 PGTW 031400 REF/A/JOINT TYPHOON WRNCEN PEARL HARBOR HI/031400Z FEB 26// AMPN/REF IS TROPICAL CYCLONE FORMATION ALERT (WTPN21 PGTW 031400)// RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 120 NM EITHER SIDE OF A LINE FROM 9.1N 135.0E TO 7.6N 128.5E 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 031200Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 9.1N 135.0E. THE SYSTEM IS MOVING WESTWARD AT 06 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. THIS SUPERSEDES REF A. 3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 041400Z. // 9426020200 64N1405E 15 9426020206 69N1400E 15 9426020212 76N1392E 15 9426020218 82N1376E 15 9426020300 86N1361E 25 9426020306 90N1356E 25 9426020312 91N1350E 25 NNNN