ABPW10 PGTW 030130
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS REISSUED/030130Z-030600ZAUG2023//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/021951ZAUG2023//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 02AUG23 1800Z, TYPHOON 06W (KHANUN) WAS LOCATED NEAR 
26.5N 125.0E, APPROXIMATELY 150 NM WEST OF KADENA AB, AND HAD TRACKED 
WEST-NORTHWESTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 100 KNOTS GUSTING TO 125 
KNOTS. SEE REF A (WTPN32 PGTW 022100) FOR FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY:
      (1) AN AREA OF CONVECTION (INVEST 93W) HAS PERSISTED NEAR 30.6N 
149.0E, APPROXIMATELY 555 NM SOUTHEAST OF TOKYO, 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 022111Z SSMIS 
91GHZ IMAGE SHOW DEEP CONVECTION AND SHALLOW RAIN BANDS WRAPPING INTO 
AN ELONGATED LOW-LEVEL CIRCULATION. THE PRIMARY WIND BAND AND 
ASSOCIATED DEEP CONVECTION ARE CONFINED NORTH OF THE LLC DUE TO A 
STRONG UPPER-LEVEL TROUGH JUST TO THE SOUTHWEST. ENVIRONMENTAL 
ANALYSIS INDICATES INVEST 93W IS IN A MARGINALLY FAVORABLE AREA FOR 
DEVELOPMENT DEFINED BY STRONG POLEWARD OUTFLOW ALOFT, UNFAVORABLE (30-
40KT) VERTICAL WIND SHEAR, AND WARM (29C) SEA SURFACE TEMPERATURES. 
GLOBAL MODELS ARE IN GENERAL AGREEMENT THAT 93W WILL TRACK NORTHWARD 
OVER THE NEXT 72 HOURS WELL EAST OF HONSHU, ACCOMPANIED CLOSELY BY THE 
AFOREMENTIONED UPPER-LEVEL TROUGH, WHICH IS EXPECTED TO MAINTAIN 
STRONG SOUTHERLY SHEAR AND DRY AIR OVER THE CYCLONE. 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 23 TO 28 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1009 MB. 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.
3. JUSTIFICATION FOR REISSUE: ADDED INVEST 93W AS A SUBTROPICAL LOW TO 
PARA 1.C.(1).//
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