ABPW10 PGTW 190600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS/190600Z-200600ZAUG2023//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 05E) PREVIOUSLY LOCATED NEAR 
32.3N 165.6E IS NOW LOCATED NEAR 32.9N 167.7E, APPROXIMATELY 1386 NM 
EAST 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 DEPICT AN ELONGATED CIRCULATION WITH DEEPEST CONVECTION 
DISPLACED 40 NM TO THE SOUTHEAST OF THE CIRCULATION. A 182318Z ASCAT 
METOP-B PASS SHOWS THAT THE STRONGEST WINDS 20-25 KNOTS ARE TO THE 
SOUTHEAST OF THE LLCC ASSOCIATED WITH THE CONVECTION. ENVIRONMENTAL 
ANALYSIS REVEALS UNFAVORABLE CONDITIONS FOR TROPICAL TRANSITION WITH 
WARM (27-28C) SEA SURFACE TEMPERATURES AND STRONG EQUATORWARD OUTFLOW 
ALOFT GREATLY OFFSET BY HIGH (30KT) VERTICAL WIND SHEAR AND DRY AIR 
BEING ADVECTED INTO THE CIRCULATION. GLOBAL MODELS ARE IN GENERAL 
AGREEMENT THAT INVEST 05E WILL TRACK NORTHEASTWARD WITH A BROAD AND 
ASYMMETRIC WIND FIELD. 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 20 TO 25 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO 
BE NEAR 1008 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT 
TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS 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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