ABPW10 PGTW 200600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS/200600Z-210600ZOCT2023//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/200152ZOCT2023//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 20OCT23 0000Z, TROPICAL STORM 16W (SANBA) WAS LOCATED NEAR 
21.3N 109.4E, APPROXIMATELY 197 NM EAST OF HANOI, VIETNAM, AND HAD 
TRACKED SOUTHEASTWARD AT 01 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 35 KNOTS GUSTING TO 45 KNOTS. 
SEE REF A (WTPN31 PGTW 200300) FOR FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   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 
4.3S 170.2E IS NOW LOCATED NEAR 4.8S 169.9E, APPROXIMATELY 655 NM EAST-
NORTHEAST OF HONIARA, SOLOMON ISLANDS. ANIMATED MULTISPECTRAL SATELLITE 
IMAGERY DEPICTS AN AREA OF DEEP CONVECTION IN THE SOUTHWESTERN QUADRANT 
OF A GRADUALLY CONSOLIDATING LOW LEVEL CIRCULATION CENTER (LLCC). A 
191825Z SMOS PASS REVEALS WINDS LIMITED TO 15-25 KNOTS AROUND THE LLCC. 
ENVIRONMENTAL ANALYSIS REVEALS FAVORABLE CONDITIONS FOR INTENSIFICATION 
WITH LOW TO MODERATE (15-20KT) VWS, WARM (30-31C) SST, AND AN UPPER-
LEVEL POINT SOURCE TO THE NORTH PROVIDING GOOD OUTFLOW. GLOBAL MODELS 
ARE IN AGREEMENT THAT 90P WILL CONTINUE TO GRADUALLY DEVELOP AS IT 
TRACKS SOUTHWESTWARD TOWARD THE SOLOMON ISLANDS. MAXIMUM SUSTAINED 
SURFACE WINDS ARE ESTIMATED AT 18 TO 23 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 
REMAINS LOW.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//
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