ABPW10 PGTW 190900

MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//

SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH

PACIFIC OCEANS REISSUED/190900Z-200600ZAUG2025//

REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/181951ZAUG2025//

REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/190751ZAUG2025//

NARR/REF A IS A TROPICAL CYCLONE FINAL WARNING. REF B IS A TROPICAL

CYCLONE WARNING.//

RMKS/

1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):

   A. TROPICAL CYCLONE SUMMARY:

      (1) AT 18AUG25 1800Z, TROPICAL DEPRESSION 17W (SEVENTEEN) WAS

LOCATED NEAR 21.2N 107.3E, APPROXIMATELY 79 NM EAST OF HANOI,

VIETNAM, AND HAD TRACKED NORTHWARD AT 11 KNOTS OVER THE PAST SIX

HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 25 KNOTS

GUSTING TO 35 KNOTS. SEE REF A (WTPN31 PGTW 182100) FOR THE FINAL

WARNING ON THIS SYSTEM.

      (2) AT 19AUG25 0600Z, TROPICAL DEPRESSION 18W (EIGHTEEN) WAS

LOCATED NEAR 27.1N 127.6E, APPROXIMATELY 376 NM SOUTH-SOUTHWEST OF

SASEBO, JAPAN, AND HAD TRACKED NORTH-NORTHWESTWARD AT 12 KNOTS OVER

THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT

30 KNOTS GUSTING TO 40 KNOTS. SEE REF B (WTPN32 PGTW 190900) FOR

FURTHER DETAILS.

      (3) NO OTHER TROPICAL CYCLONES.

   B. TROPICAL DISTURBANCE SUMMARY:

      (1) THE AREA OF CONVECTION (INVEST 92W) PREVIOUSLY LOCATED NEAR

11.1N 138.5E IS NOW THE SUBJECT OF A TROPICAL CYCLONE WARNING. SEE

PARA. 1.A.(2) FOR FURTHER DETAILS.

      (2) THE AREA OF CONVECTION (INVEST 90W) PREVIOUSLY LOCATED NEAR

11.1N 138.5E IS NOW LOCATED NEAR 11.2N 137.3E, APPROXIMATELY 113 NM

NORTH-NORTHWEST OF YAP. ANIMATED MULTISPECTRAL SATELLITE IMAGERY

(MSI) DEPICTS A WAVE LIKE FEATURE WITH FLARING CONVECTION AND MID-

LEVEL CYCLONIC TURNING. ENVIRONMENTAL ANALYSIS REVEALS A MARGINAL

ENVIRONMENT FOR DEVELOPMENT WITH LOW VERTICAL WIND SHEAR (VWS) OF 5-

15 KNOTS, WEAK UPPER-LEVEL OUTFLOW, AND WARM SEA SURFACE TEMPERATURES

OF (SST) OF 30-31 C. DETERMINISTIC AND ENSEMBLES ARE IN POOR

AGREEMENT ON DEVELOPMENT BUT SHOW CONFIDENCE ON A NORTHWESTWARD TRACK

TOWARD LUZON, PHILIPPINES. MAXIMUM SUSTAINED SURFACE WINDS ARE

ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED

TO BE NEAR 1008 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A

SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW.

      (3) NO OTHER SUSPECT AREAS.

   C. SUBTROPICAL SYSTEM SUMMARY: NONE.

2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST):

   A. TROPICAL CYCLONE SUMMARY: NONE.

   B. TROPICAL DISTURBANCE SUMMARY: NONE.

   C. SUBTROPICAL SYSTEM SUMMARY: NONE.

3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 1.B.(1) TO

WARNING STATUS.//

NNNN