ABPW10 PGTW 111230
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS REISSUED/111230Z-120600ZAUG2026//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/110151ZAUG2026//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/110751ZAUG2026//
REF/C/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/110752ZAUG2026//
NARR/REFS A, B AND C ARE TROPICAL CYCLONE WARNINGS.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 11AUG26 0000Z, TROPICAL DEPRESSION 15W (FIFTEEN) WAS 
LOCATED NEAR 28.4N 160.8E, APPROXIMATELY 632 NM NORTH-NORTHWEST OF 
WAKE ISLAND, AND HAD TRACKED NORTH- NORTHEASTWARD AT 10 KNOTS OVER THE 
PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 25 
KNOTS GUSTING TO 35 KNOTS. SEE REF A (WTPN34 PGTW 110300) FOR THE 
FINAL WARNING ON THIS SYSTEM.
      (2) AT 11AUG26 0600Z, TROPICAL STORM 14W (CHAN-HOM) WAS LOCATED 
NEAR 36.5N 142.0E, APPROXIMATELY 133 NM EAST-NORTHEAST OF YOKOSUKA, 
JAPAN, AND HAD TRACKED WEST- SOUTHWESTWARD AT 13 KNOTS OVER THE PAST 
SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 40 KNOTS 
GUSTING TO 50 KNOTS. SEE REF B (WTPN33 PGTW 110900) FOR FURTHER 
DETAILS.
      (3) AT 11AUG26 0600Z, TROPICAL DEPRESSION 13W (PEILOU) WAS 
LOCATED NEAR 26.0N 158.0E, APPROXIMATELY 623 NM NORTHWEST OF WAKE 
ISLAND, AND HAD TRACKED NORTHEASTWARD AT 26 KNOTS OVER THE PAST SIX 
HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 30 KNOTS 
GUSTING TO 40 KNOTS. SEE REF C (WTPN32 PGTW 110900) FOR FURTHER 
DETAILS.
      (4) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 91W) PREVIOUSLY LOCATED NEAR 
22.0N 136.0E IS NOW LOCATED NEAR 22.2N 137.3E, APPROXIMATELY 271 NM 
SOUTHWEST OF IWO TO. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY 
(EIR) DEPICTS AN ELONGATED TROUGH AXIS WITH PERSISTENT CONVECTION TO 
THE SOUTH. A COMPACT AND SHALLOW SYSTEM POSSESSING TROPICAL 
CHARACTERISTICS HAS THE POSSIBILITY OF FORMING ALONG THE BOUNDARY OF 
THE STRONG MONSOONAL WESTERLY FLOW TO THE SOUTH AND PROPAGATING ALONG 
THE MONSOONAL GYRE AS A SEPARATE ENTITY. ENVIRONMENTAL ANALYSIS 
INDICATES A FAVORABLE AREA FOR DEVELOPMENT WITH LOW VERTICAL WIND 
SHEAR, GOOD EQUATORWARD OUTFLOW, AND A WARM SEA SURFACE TEMPERATURE 
(29-30 C). GLOBAL AND DETERMINISTIC MODELS AGREE ON DEVELOPMENT OF A 
CLOSED CIRCULATION WITHIN 36 HOURS. MAXIMUM SUSTAINED SURFACE WINDS 
ARE ESTIMATED AT 12 TO 18 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 UPGRADED TO 
MEDIUM.
      (2) 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 
MEDIUM.//
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