ABPW10 PGTW 110600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS/110600Z-120600ZFEB2023//
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: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY:
      (1) AN AREA OF CONVECTION (SUBTROPICAL STORM 12P) PREVIOUSLY 
LOCATED NEAR 26.6S 164.4E IS NOW LOCATED NEAR 28.3S 166.3E, APPROXIMATELY 
663 NM NORTHWEST OF AUCKLAND, NEW ZEALAND. THE SYSTEM IS CURRENTLY 
CLASSIFIED AS A SUBTROPICAL STORM (SS), GENERALLY CHARACTERIZED AS HAVING 
BOTH TROPICAL AND MIDLATITUDE CYCLONE FEATURES. ANIMATED MULTISPECTRAL 
SATELLITE IMAGERY DEPICTS A FULLY EXPOSED LOW LEVEL CIRCULATION CENTER 
(LLCC) WITH BROAD CONVECTION OFFSET IN THE SOUTHERN SEMICIRCLE. AN 
110236Z AMSR2 89GHZ MICROWAVE IMAGE REVEALS SHALLOW CONVECTIVE BANDING 
TIGHTLY WRAPPING INTO THE LLCC. THE SYSTEM IS CURRENTLY EMBEDDED UNDER A 
STRONG UPPER-LEVEL TROUGH NEAR A STJ RESULTING IN HIGH (30-40KT) VWS. SST 
IS UNFAVORABLE AT A COOL 25C. MODEL ANALYSES INDICATE MODERATE 
BAROCLINICITY WITH SIGNIFICANT DRY AIR ENTRAINMENT. GLOBAL MODELS ARE IN 
GOOD AGREEMENT THAT SS 12P WILL TRACK SOUTHEASTWARD OVER THE NEXT 24-48 
HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 60 TO 65 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 972 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 TRANSITION INTO A SIGNIFICANT TROPICAL CYCLONE WITHIN THE 
NEXT 24 HOURS IS LOW.
      (2) NO OTHER SUBTROPICAL SYSTEMS.//
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