ABPW10 PGTW 210600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS/210600Z-220600ZOCT2023//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/210251ZOCT2023//
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 90P) PREVIOUSLY LOCATED NEAR 
7.1S 169.3E IS NOW LOCATED NEAR 7.4S 168.8E, 525 NM EAST-NORTHEAST OF 
HONIARA, SOLOMON ISLANDS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY 
DEPICTS A CONSOLIDATING, PARTIALLY EXPOSED LOW-LEVEL CIRCULATION CENTER 
(LLCC) WITH PERSISTENT DEEP CONVECTION AND FORMATIVE BANDING IN THE 
NORTHERN AND EASTERN PERIPHERIES. A 202237Z ASCAT-C IMAGE REVEALS SPARSE 
30 KT WINDS SOUTH OF THE CIRCULATION CENTER. ENVIRONMENTAL ANALYSIS 
INDICATES THAT 90P IS IN A FAVORABLE ENVIRONMENT FOR DEVELOPMENT WITH 
GOOD OUTFLOW ALOFT, LOW (10-15 KTS) VERTICAL WIND SHEAR, AND WARM (29-30 
C) SST. GLOBAL MODELS ARE IN GOOD AGREEMENT THAT 90P WILL TRACK SOUTH-
SOUTHWESTWARD AND CONTINUE TO DEVELOP OVER THE NEXT 24-48 HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 25 TO 30 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 
REMAINS HIGH. SEE REF A (WTPS21 PGTW 210300) FOR FURTHER DETAILS.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//
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