ABPW10 PGTW 090600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
SOUTH PACIFIC OCEANS/090600Z-100600ZDEC2020//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   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:
      (1) AN AREA OF CONVECTION (INVEST 90P) HAS PERSISTED NEAR
12.7S 177.2W, APPROXIMATELY 432 NM NORTHEAST OF NADI, FIJI. ANIMATED
ENHANCED MULTISPECTRAL SATELLITE IMAGERY AND A 090427Z SSMIS 91GHZ PASS
DEPICT LOW LEVEL CYCLONIC TURNING WITH DISORGANIZED FLARING CONVECTION
IN THE NORTHERN PERIPHERY. A 082048Z ASCAT-B IMAGE REVEALS A BROAD
CIRCULATION WITH 15-20 KT WINDS IN THE WESTERN SEMICIRCLE. INVEST 90P
IS IN A MARGINAL ENVIRONMENT FOR DEVELOPMENT WITH MODERATE (15-20KTS)
VERTICAL WIND SHEAR, POLEWARD AND EQUATORWARD OUTFLOW ALOFT, AND WARM
(28-29C) SEA SURFACE TEMPERATURES. GLOBAL MODELS ARE IN FAIR AGREEMENT
THAT INVEST 90P WILL TRACK WEST WITH LITTLE INTENSIFICATION. MAXIMUM
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 25 TO 30 KNOTS. MINIMUM SEA
LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS
REMAINS LOW.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
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