ABPW10 PGTW 300600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS/300600Z-310600ZAUG2026//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/300153ZAUG2026//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/300152ZAUG2026//
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 30AUG26 0000Z, TROPICAL STORM 20W (BANG-LANG) WAS LOCATED 
NEAR 31.3N 167.9E, APPROXIMATELY 723 NM NORTH OF WAKE ISLAND, AND HAD 
TRACKED NORTH-NORTHWESTWARD AT 38 KNOTS OVER THE PAST SIX HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 60 KNOTS GUSTING TO 
75 KNOTS. SEE REF A (WTPN33 PGTW 300300) FOR FURTHER DETAILS.
      (2) AT 30AUG26 0000Z, TROPICAL DEPRESSION 21W (ETAU) WAS LOCATED 
NEAR 30.9N 164.7E, APPROXIMATELY 696 NM NORTHEAST OF MINAMI TORI 
SHIMA, AND HAD TRACKED NORTHWESTWARD AT 03 KNOTS OVER THE PAST SIX 
HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 25 KNOTS 
GUSTING TO 35 KNOTS. SEE REF B (WTPN32 PGTW 300300) FOR FURTHER 
DETAILS.
      (3) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 94W) PREVIOUSLY LOCATED NEAR 
20.3N 134.3E IS NOW LOCATED NEAR 20.3N 134.0E, APPROXIMATELY 323 NM 
NORTH-NORTHWEST OF MINAMI DAITO JIMA. ANIMATED ENHANCED INFRARED 
SATELLITE IMAGERY DEPICTS A POORLY DEFINED LOW-LEVEL CIRCULATION 
CENTER OBSCURED BY PERSISTENT CONVECTION. RECENT  SCATTEROMETER DATA 
REVEALS AN ELONGATED CIRCULATION IN THE LOWER LEVELS ASSOCIATED WITH 
WEAK SURROUNDING WINDS. THE ENVIRONMENTAL ANALYSIS OF THE AREA 
INDICATES CONDUCIVE CONDITIONS FOR DEVELOPMENT WITH LOW (10-15 KTS) 
VERTICAL WIND SHEAR (VWS), WARM (29-30 C) SEA SURFACE TEMPERATURES, 
PLENTIFUL MOISTURE, AND A STRONG EQUATORWARD OUTFLOW IN THE UPPER 
LEVELS. GLOBAL DETERMINISTIC AND ENSEMBLE MODELS AGREE ON A GRADUAL 
DEVELOPMENT OF 94W AS THE SYSTEM TRANSITS WEST-NORTHWESTWARD. MAXIMUM 
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 13 TO 18 KNOTS. MINIMUM SEA 
LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1004 MB. THE POTENTIAL FOR THE 
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS 
REMAINS MEDIUM.
      (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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