ABPW10 PGTW 180600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS/180600Z-190600ZAPR2025//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/172121ZAPR2025//
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: NONE.
   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:
      (1) THE AREA OF CONVECTION (INVEST 97P) PREVIOUSLY LOCATED NEAR 
10.0N 138.6E IS NOW LOCATED NEAR 11.2S 139.2E, APPROXIMATELY 153 NM 
EAST-NORTHEAST OF GOVE AIRPORT, AUSTRAILIA. ANIMATED MULTISPECTRAL 
SATELLITE IMAGERY DEPICTS AN AREA OF PERSISTENT DEEP CONVECTION 
PARTIALLY OBSCURING A DEFINED LOW-LEVEL CIRCULATION CENTER (LLCC). A 
PARTIAL 180045Z ASCAT METOP-C IMAGE REVEALED AN AREA OF 30 KTS WITHIN 
THE WESTERN SEMICIRCLE OF RELATIVELY SYMMETRICAL CIRCULATION. 
ENVIRONMENTAL ANALYSIS REVEALS A FAVORABLE ENVIRONMENT WITH WARM SEA 
SURFACE TEMPERATURES (30 C), LOW VERTICAL WIND SHEAR (10-15 KTS), DEEP 
TROPICAL MOISTURE, AND GOOD POLEWARD OUTFLOW. GLOBAL MODELS ARE IN GOOD 
AGREEMENT THAT 97P WILL TRACK SOUTHEASTWARD WITH DEVELOPMENT AND GRADUAL 
INTENSIFICATION OVER THE NEXT 24 HOURS. MAXIMUM SUSTAINED SURFACE WINDS 
ARE ESTIMATED AT 28 TO 33 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 REMAINS HIGH. SEE REF A 
(WTPS21 PGTW 172130) FOR FURTHER DETAILS.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//
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