ABPW10 PGTW 290600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS/290600Z-300600ZAUG2023//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/290153ZAUG2023//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/290152ZAUG2023//
NARR/REFS A AND B ARE TROPICAL CYCLONE WARNINGS.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 29AUG23 0000Z, TROPICAL STORM 10W (HAIKUI) WAS LOCATED NEAR 
19.0N 138.1E, APPROXIMATELY 391 NM SOUTH-SOUTHWEST OF IWO TO, AND HAD 
TRACKED WEST-NORTHWESTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 45 KNOTS GUSTING TO 55 KNOTS. 
SEE REF A (WTPN33 PGTW 290300) FOR FURTHER DETAILS.
      (2) AT 29AUG23 0000Z, TYPHOON 09W (SAOLA) WAS LOCATED NEAR 18.6N 
123.5E, APPROXIMATELY 280 NM NORTH-NORTHEAST OF MANILA, PHILIPPINES, AND 
HAD TRACKED NORTHWESTWARD AT 05 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 100 KNOTS GUSTING TO 125 
KNOTS. SEE REF B (WTPN32 PGTW 290300) FOR FURTHER DETAILS.
      (3) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) AT 29AUG23 0230Z, AN AREA OF CONVECTION (INVEST 94W) HAS 
PERSISTED NEAR 9.6N 158.3E, APPROXIMATELY 147 NM WEST OF THE UJELANG 
ATOLL. ANIMATED MULTISPECTRAL SATELLITE IMAGERY AND A PARTIAL 282317Z 
ASCAT METOP-B DEPICTS A BROAD CENTER OF BUILDING CONVECTION OVER A FULLY 
OBSCURED CIRCULATION WITH 15 KNOT WINDS TO THE NORTHEAST. UPPER LEVEL 
ANALYSIS INDICATES THAT 94W IS IN A FAVORABLE ENVIRONMENT FOR 
DEVELOPMENT WITH MODERATE (15-20 KTS) VERTICAL WIND SHEAR, DIVERGENCE 
ALOFT, DUAL CHANNEL UPPER AIR OUTFLOW TO THE NORTHEAST AND SOUTH, WITH 
WARM (30C) SEA SURFACE TEMPERATURES. GLOBAL MODELS ARE IN GOOD AGREEMENT 
THAT 94W WILL CONTINUE TO TRACK NORTHEAST AND DEVELOP OVER THE NEXT 48 
HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 13 TO 17 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1006 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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