ABPW10 PGTW 290600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS/290600Z-300600ZSEP2020//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/280151ZSEP2020//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      1) AT 29SEP20 0000Z, TROPICAL STORM 15W (KUJIRA) WAS LOCATED 
NEAR 32.6N 154.1E, APPROXIMATELY 734 NM EAST OF YOKOSUKA, JAPAN, AND 
HAD TRACKED NORTH-NORTHEASTWARD AT 23 KNOTS OVER THE PAST SIX HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 60 KNOTS GUSTING 
TO 75 KNOTS. SEE REF A (WTPN31 PGTW 290300) FOR FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 98W) PREVIOUSLY LOCATED 
NEAR 21.3N 146.9E, IS NOW LOCATED NEAR 22.4N 147.6E, APPROXIMATELY 
360 NM EAST-SOUTHEAST OF IWO TO. ANIMATED MULTISPECTRAL SATELLITE 
IMAGERY REVEALS A SMALL LOW LEVEL CIRCULATION WITH SOME BANDING IN 
THE SOUTHERN SEMICIRCLE. A 290345Z AMSR2 PASS INDICATES A POSSIBLE 
CIRCULATION WITH SPOTTED CONVECTION. ENVIRONMENTAL ANALYSIS 
INDICATES INVEST 98W IS EXPERIENCING LOW (<15 KTS) VERTICAL WIND 
SHEAR, MODERATE EQUATORWARD OUTFLOW, AND WARM (30C) SEA SURFACE 
TEMPERATURES. GLOBAL MODELS DO NOT INDICATE THE DEVELOPMENT OF 98W 
AT THIS TIME. HOWEVER, THE DISTURBANCE IS EXPECTED TO TRACK 
POLEWARD. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 
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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