ABPW10 PGTW 181530
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS REISSUED/181530Z-190600ZAUG2024//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/180751ZAUG2024//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/181451ZAUG2024//
NARR/REF A IS A TROPICAL CYCLONE FINAL WARNING. REF B IS A TROPICAL 
CYCLONE FORMATION ALERT.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 18AUG24 0600Z, TROPICAL STORM 08W (AMPIL) WAS LOCATED 
NEAR 40.5N 155.3E, APPROXIMATELY 643 NM EAST OF MISAWA, JAPAN, AND 
HAD TRACKED EAST-NORTHEASTWARD AT 22 KNOTS OVER THE PAST SIX HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 55 KNOTS GUSTING TO 
70 KNOTS. SEE REF A (WTPN33 PGTW 180900) FOR THE FINAL WARNING ON 
THIS SYSTEM.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 98W) PREVIOUSLY LOCATED NEAR 
24.9N 126.2E IS NOW LOCATED NEAR 24.7N 125.5E, APPROXIMATELY 158 NM 
SOUTHWEST OF KADENA AB. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY 
AND A 181303Z ASCAT METOP-B 25KM IMAGE REVEAL A CONSOLIDATING 
CIRCULATION WITH FLARING CONVECTION ALONG THE SOUTHERN PERIPHERY AND 
STRONGER, NON-WRAPPING GRADIENT WINDS OF UP TO 35 KNOTS PRESENT TO 
THE SOUTHEAST. ENVIRONMENTAL ANALYSIS IS MARGINALLY FAVORABLE, WITH 
LOW (05-10KTS) VERTICAL WIND SHEAR, MODERATE EQUATORWARD UPPER LEVEL 
OUTFLOW, AND HIGH (30-32C) SEA SURFACE TEMPERATURES. DETERMINISTIC 
AND ENSEMBLE  MODELS ARE IN GOOD AGREEMENT THAT INVEST 98W WILL 
CONTINUE TO TRANSIT NORTHWARD INTO THE EAST CHINA SEA AS IT DEVELOPS 
OVER THE NEXT 24 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED 
AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 
1005 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL 
CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH. SEE REF B 
(WTPN21 PGTW 181500) 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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