ABPW10 PGTW 172000
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH 
PACIFIC OCEANS REISSUED/172000Z-180600ZMAY2026//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY:
      (1) AN AREA OF CONVECTION (INVEST 98W) HAS PERSISTED NEAR 20.7N 
130.6E, APPROXIMATELY 372 NM SOUTH-SOUTHEAST OF KADENA. THE SYSTEM IS 
CURRENTLY CLASSIFIED AS A SUBTROPICAL DISTURBANCE, GENERALLY 
CHARACTERIZED AS HAVING BOTH TROPICAL AND MIDLATITUDE CYCLONE FEATURES. 
ENHANCED INFRARED IMAGERY DEPICTS AN ILL-DEFINED LOW-LEVEL CIRCULATION 
PARTIALLY OBSCURED BY FLARING CONVECTION IN THE NORTHEAST QUADRANT AND 
SITUATED UNDER AN UPPER LEVEL LONG WAVE TROUGH. THE 170030Z ASCAT-B AND 
171330Z OSCAT-3 PASSES REVEALED AN ASYMMETRIC WIND FIELD WITH 20-25 KNOT 
WINDS ON THE NORTHERN PERIPHERY OF THE DISTURBANCE. ENVIRONMENTAL 
ANALYSIS DEPICTS HIGH VERTICAL WIND SHEAR (25 TO 35KTS), WARM SEA 
SURFACE TEMPERATURES (28 TO 29 C) AND MODERATE POLEWARD UPPER LEVEL 
OUTFLOW AND DIVERGENCE. MODELS KEEP 98W UNDER THE TROUGH OVER THE NEXT 
24-36 HOURS, AFTER WHICH TIME A STRONG RIDGE WILL BUILD IN FROM THE WEST 
AND INTRODUCE HIGH VERTICAL WIND SHEAR, AND VERY DRY AIR WILL ENVELOPE 
THE CIRCULATION. WHILE THE DISTURBANCE WILL REGAIN TROPICAL 
CHARACTERISTICS, THE DISTURBANCE IS UNLIKELY TO DEVELOP INTO A TROPICAL 
CYCLONE AS A RESULT OF THESE FACTORS OVER THE NEXT 36-48 HOURS.   
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 28 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 IS LOW.
      (2) NO OTHER SUBTROPICAL SYSTEMS.
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: ADDED AREA IN 2.C.(1) AS A LOW.//
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