ABPW10 PGTW 271530
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS REISSUED/271530Z-280600ZAUG2023//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/271351ZAUG2023//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/271352ZAUG2023//
REF/C/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/271451ZAUG2023//
NARR/REFS A AND B ARE TROPICAL CYCLONE WARNINGS. REF C IS A TROPICAL 
CYCLONE FORMATION ALERT.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 27AUG23 1200Z, TYPHOON 08W (DAMREY) WAS LOCATED NEAR 
35.7N 144.4E, APPROXIMATELY 231 NM EAST OF YOKOSUKA, JAPAN, AND HAD 
TRACKED NORTH-NORTHWESTWARD AT 24 KNOTS OVER THE PAST SIX HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 65 KNOTS GUSTING TO 
80 KNOTS. SEE REF A (WTPN31 PGTW 271500) FOR FURTHER DETAILS.
      (2) AT 27AUG23 1200Z, TYPHOON 09W (SAOLA) WAS LOCATED NEAR 16.2N 
123.2E, APPROXIMATELY 159 NM NORTHEAST OF MANILA, PHILIPPINES, AND HAD 
TRACKED SOUTHEASTWARD AT 04 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 125 KNOTS GUSTING TO 150 
KNOTS. SEE REF B (WTPN32 PGTW 271500) FOR FURTHER DETAILS.
      (3) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 93W) PREVIOUSLY LOCATED NEAR 
16.4N 143.5E IS NOW LOCATED NEAR 18.0N 143.9E, APPROXIMATELY 316 NM 
NORTH OF GUAM. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY AND A 
270805Z SSMIS 91 GHZ IMAGE DEPICT A BROAD AREA OF SHARP TROUGHING WITH 
PERSISTENT, DEEP CONVECTIVE BANDING HIDING THE PROSPECTIVE LOW LEVEL 
CIRCULATON CENTER (LLCC). A 271130Z ASCAT-C PARTIAL PASS SHOWS 15-20KT 
WINDS TO THE EAST OF THE ASSESSED CENTER. ENVIRONMENTAL ANALYSIS 
REVEALS FAVORABLE CONDITIONS FOR DEVELOPMENT WITH WARM (29-30 C) SST 
AND ROBUST POLEWARD OUTFLOW ALOFT OFFSET BY MODERATE (15-20KTS) 
VERTICAL WIND SHEAR. GLOBAL MODELS INDICATE 93W WILL TRACK SLOWLY 
WESTWARD WITH STEADY DEVELOPMENT OVER THE NEXT 48 HOURS. THE SYSTEM 
WILL LIKELY STALL NEAR THE WEST OF THE NORTHERN MARIANAS WITH STRONG 
MONSOONAL FLOW PERSISTING OVER THE REGION, AIDING IN ITS DEEPENING AND 
DEVELOPMENT. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 
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 IS UPGRADED TO HIGH. SEE REF C (WTPN21 PGTW 
271500) FOR FURTHER DETAILS.
      (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.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 1.B.(1) TO HIGH.//
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