ABPW10 PGTW 162000
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS/162000Z-170600ZOCT2022//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/160151ZOCT2022//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/151921ZOCT2022//
AMPN/REF A IS A TROPICAL CYCLONE WARNING. REF B IS A TROPICAL CYCLONE 
FORMATION ALERT.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 16OCT22 0000Z, TROPICAL STORM 23W (NESAT) WAS LOCATED 
NEAR 19.3N 121.2E, APPROXIMATELY 282 NM NORTH OF MANILA, PHILIPPINES, 
AND HAD TRACKED WESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 50 KNOTS GUSTING TO 65 
KNOTS. SEE REF A (WTPN33 PGTW 160300) FOR FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:NONE.
   C. SUBTROPICAL SYSTEM SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 91W) PREVIOUSLY LOCATED NEAR 
26.7N 153.4E IS NOW LOCATED NEAR 26.5N 153.4E, APPROXIMATELY 874 NM 
EAST-SOUTHEAST OF YOKOSUKA, JAPAN. THE SYSTEM IS CURRENTLY CLASSIFIED 
AS A SUBTROPICAL DEPRESSION, GENERALLY CHARACTERIZED AS HAVING BOTH 
TROPICAL AND MIDLATITUDE CYCLONE FEATURES. ANIMATED MULTISPECTRAL 
SATELLITE IMAGERY AND A 150245Z AMSR2 89 GHZ MICROWAVE DATA DEPICT A 
FULLY EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) WITH EXPANSIVE 
CONVECTIVE BANDING DISPLACED ON THE WESTERN PERIPHERY. UPPER-LEVER 
ANALYSIS REVEALS A FAVORABLE ENVIRONMENT, WITH WARM (27-28C) SEA 
SURFACE TEMPERATURES, AND DECENT EQUATORWARD OUTFLOW; MAKING 91W A 
GREAT CANDIDATE FOR TRANSITIONING INTO A TROPICAL CYCLONE. GLOBAL 
MODELS ARE IN AGREEMENT THAT THE SYSTEM WILL LOSE JET SUPPORT, TAKE ON 
MORE TROPICAL CHARACTERISTICS AND INTENSIFY WHILE TRACKING EAST-
NORTHEAST. FOR HAZARDS AND WARNINGS, REFERENCE THE FLEET WEATHER 
CENTER SAN DIEGO HIGH WINDS AND SEAS PRODUCT OR REFER TO LOCAL WMO 
DESIGNATED FORECAST AUTHORITY. MAXIMUM SUSTAINED SURFACE WINDS ARE 
ESTIMATED AT 30 TO 35 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 B 
(WTPN21 PGTW 151930) FOR FURTHER DETAILS.
      (2) NO OTHER SUBTROPICAL SYSTEMS.
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.//
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