ABPW10 PGTW 080600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
SOUTH PACIFIC OCEANS/080600Z-090600ZJUN2021//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) AN AREA OF CONVECTION (INVEST 91W) HAS PERSISTED NEAR 6.0N 
168.0E, APPROXIMATELY 130 NM SOUTH-SOUTHWEST OF KWAJALEIN ISLAND. 
ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) SHOWS A CONSOLIDATING 
AREA OF CONVECTION AROUND A LOW LEVEL CIRCULATION (LLC). A 080502Z SSMIS 
91GHZ MICROWAVE PASS DEPICTS DISORGANIZED CONVECTIVE BANDS WRAPPING INTO 
THE LLC. INVEST 91W IS IN AN ENVIRONMENT FAVORABLE FOR TROPICAL 
DEVELOPMENT WITH GOOD EQUATORWARD OUTFLOW ALOFT, LOW (5-10KTS) VERTICAL 
WIND SHEAR (VWS) AND WARM (30-31C) SEA SURFACE TEMPERATURES (SST). GLOBAL 
MODELS ARE NOT IN AGREEMENT WITH A TROPICAL CYCLONE DEVELOPING FROM 
INVEST 91W, HOWEVER, JTWC WILL CLOSELY MONITOR FOR POTENTIAL DEVELOPMENT 
DUE TO A FAVORABLE APPEARANCE IN SATELLITE ANALYSIS. MAXIMUM SUSTAINED 
SURFACE WINDS ARE ESTIMATED AT 13 TO 18 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 LOW.
      (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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