ABPW10 PGTW 291530
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/291530Z-300600ZJUN2021//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 95W) PREVIOUSLY LOCATED 
NEAR 20.0N 140.9E IS NOW LOCATED NEAR 19.5N 139.8E, APPROXIMATELY 
463 NM NORTHWEST OF GUAM. ANIMATED ENHANCED INFRARED SATELLITE 
IMAGERY DEPICTS A COMPACT, CONSOLIDATING LOW LEVEL CIRCULATION (LLC) 
WITH DEEP CONVECTION OBSCURING THE LLC. A 291215Z MHS 89GHZ 
MICROWAVE IMAGE INDICATES FORMATIVE, CURVED BANDING WRAPPING INTO 
THE CENTER. A 291018Z ASCAT-A IMAGE SHOWS AN ELONGATED CIRCULATION 
WITH 15-20 KNOT WINDS. INVEST 95W IS IN A MARGINALLY-FAVORABLE 
ENVIRONMENT WITH LOW (10-15 KTS) NORTHERLY VERTICAL WIND SHEAR, AND 
WARM (29-30 CELSIUS) SEA SURFACE TEMPERATURES, OFFSET BY WEAK 
EQUATORWARD OUTFLOW ALOFT AND DRY AIR ENTRAINMENT. DESPITE THE 
ENVIRONMENTAL LIMITATIONS, INVEST 95W IS COMPACT AND IS COCOONED 
FROM THE DETRIMENTAL EFFECTS OF THE SURROUNDING ENVIRONMENT. 
NUMERICAL MODELS CONTINUE TO INDICATE LITTLE TO NO DEVELOPMENT AS IT 
TRANSITS TO THE WEST. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED 
AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE 
NEAR 1009 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT 
TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO 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.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARAGRAPH 1.B.(1) TO 
MEDIUM.//
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