ABPW10 PGTW 170600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS/170600Z-180600ZOCT2022//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/170151ZOCT2022//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 17OCT22 0000Z, TYPHOON 23W (NESAT) WAS LOCATED NEAR 19.8N 
116.8E, APPROXIMATELY 394 NM NORTHWEST OF MANILA, PHILIPPINES, AND HAD 
TRACKED WESTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED 
SURFACE WINDS WERE ESTIMATED AT 80 KNOTS GUSTING TO 100 KNOTS. SEE REF A 
(WTPN33 PGTW 170300) 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 
27.6N 156.7E IS NOW LOCATED NEAR 27.1N 156.7E, APPROXIMATELY 713 NM 
NORTHWEST OF WAKE ISLAND. 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 170235Z AMSR2 89 GHZ MICROWAVE IMAGE DEPICT A PARTIALLY 
EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) THAT HAS TUCKED ITSELF 
BENEATH AN AREA OF CONVECTION THAT EXTENDS ALONG THE EASTERN EDGE. 
ENVIRONMENTAL ANALYSIS REVEALS A MARGINALLY FAVORABLE ENVIRONMENT, WITH 
FAIR POLEWARD OUTFLOW, LOW (10-15KT) VWS, AND LUKEWARM (26-28C) SEA 
SURFACE TEMPERATURES. GLOBAL MODELS ARE IN AGREEMENT THAT THE SYSTEM IS 
CONTINUOUSLY LOSING STRENGTH AND WILL OPEN UP INTO A WAVE FEATURE AND NO 
LONGER BE CLOSED OFF AND GET PICKED UP BY AN APPROACHING LONGWAVE TROUGH 
OVER THE NEXT 12-24 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED 
AT 22 TO 28 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 
1007 MB. FOR HAZARDS AND WARNINGS, REFERENCE THE FLEET WEATHER CENTER SAN 
DIEGO HIGH WINDS AND SEAS PRODUCT OR REFER TO LOCAL WMO DESIGNATED 
FORECAST AUTHORITY. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT 
TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.
      (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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