ABPW10 PGTW 121330
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS REISSUED/121300Z-130600ZSEP2026//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/121321ZSEP2026//
AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 98W) PREVIOUSLY LOCATED NEAR 
15.6N 110.7E IS NOW LOCATED NEAR 17.0N 109.7E, APPROXIMATELY 104 NM 
NORTHEAST OF DA NANG, VIETNAM. ANIMATED ENHANCED INFRARED (EIR) DEPICTS 
A BROAD AREA OF DISORGANIZED DEEP CONVECTION ASSOCIATED WITH A SLOWLY 
CONSOLIDATING LOW-LEVEL CIRCULATION CENTER (LLCC). THE LLCC REMAINS 
BROAD AND ELONGATED, WITH THE WESTERN EXTENT OF THE CIRCULATION LIKELY 
EXTENDING OVER LAND. CURRENT ANALYSIS OF THE SURROUNDING ENVIRONMENT 
INDICATES FAVORABLE CONDITIONS FOR FURTHER CONSOLIDATION WITH LOW (5-10 
KTS) VERTICAL WIND SHEAR, STRONG EQUATORWARD OUTFLOW ALOFT, WARM (28-29 
C) SEA SURFACE TEMPERATURES, AND SUFFICIENT MOISTURE THROUGHOUT THE AIR 
COLUMN. GLOBAL DETERMINISTIC MODELS ARE IN GOOD AGREEMENT THAT 98W WILL 
TRACK GENERALLY NORTHWESTWARD, SKIRTING THE COAST OF VIETNAM, 
POTENTIALLY REACHING TROPICAL DEPRESSION CRITERIA DURING THE NEXT 12-24 
HOURS. THERE REMAINS SIGNIFICANT UNCERTAINTY AS TO WHETHER THE BROAD 
SYSTEM CAN ORGANIZE BEFORE IT MAKES LANDFALL IN VIETNAM AND TRANSITS 
INLAND. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 28 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1006 MB. THE 
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN 
THE NEXT 24 HOURS IS HIGH. SEE REF A (WTPN21 PGTW 121330) FOR FURTHER 
DETAILS.
      (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 HIGH.//
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