ABPW10 PGTW 110600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS/110600Z-120600ZJUN2023//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/110151ZJUN2023//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 11JUN23 0000Z, TYPHOON 03W (GUCHOL) WAS LOCATED NEAR 
23.2N 131.6E, APPROXIMATELY 286 NM SOUTHEAST OF KADENA AB, AND HAD 
TRACKED NORTH-NORTHEASTWARD AT 14 KNOTS OVER THE PAST SIX HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 85 KNOTS GUSTING TO 
105 KNOTS. SEE REF A (WTPN31 PGTW 110300) FOR FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 99W) PREVIOUSLY LOCATED NEAR 
21.9N 108.5E IS NOW LOCATED NEAR 20.1N 109.6E, APPROXIMATELY 41.6 NM 
WEST OF HAIKOU, HAINAN ISLAND. ANIMATED MULTISPECTRAL SATELLITE 
IMAGERY (MSI) AND ANIMATED RADAR IMAGERY DEPICT A DISORGANIZED LOW 
LEVEL CIRCULATION CENTER (LLCC). THE ENVIRONMENT IS MARGINALLY 
FAVORABLE FOR DEVELOPMENT WITH ROBUST EQUATORWARD OUTFLOW, LOW (5-
10KT) VERTICAL WIND SHEAR, AND VERY WARM (30-31C) SEA SURFACE 
TEMPERATURES. INTERACTION WITH LAND WILL HINDER DEVELOPMENT AND GLOBAL 
MODELS ARE IN GENERAL AGREEMENT THAT INVEST 99W WILL TRACK SOUTHWARD  
AND EVENTUALLY EASTWARD NOT DEVELOPING OVER THE NEXT 24-48 HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 13 TO 17 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1000 MB. THE 
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN 
THE NEXT 24 HOURS REMAINS LOW.
      (2) NO OTHER SUSPECT AREAS.
   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: NONE.//
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