ALERT ATCF MIL 90X XXX 210530060000 2021053006 7.2 149.3 9.6 145.6 120 7.4 149.0 300530 2105300521 2 SUBJ/TROPICAL CYCLONE FORMATION ALERT REISSUED // WTPN21 PGTW 300530 REF/A/JOINT TYPHOON WRNCEN PEARL HARBOR HI/290521Z MAY 21// AMPN/REF IS TROPICAL CYCLONE FORMATION ALERT (WTPN22 PGTW 290530)// RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 120 NM EITHER SIDE OF A LINE FROM 7.2N 149.3E TO 9.6N 145.6E 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 18 TO 23 KNOTS. METSAT IMAGERY AT 300000Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 7.4N 149.0E. THE SYSTEM IS MOVING WEST-NORTHWESTWARD AT 12 KNOTS. 2. REMARKS: MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1005 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 310530Z. // 9021052718 54N1550E 20 9021052800 58N1545E 20 9021052806 61N1541E 20 9021052812 63N1537E 20 9021052818 63N1532E 20 9021052900 63N1526E 20 9021052906 63N1519E 20 9021052912 63N1511E 20 9021052918 69N1501E 20 9021053000 74N1490E 20 9021053006 75N1476E 20 NNNN