ABPW10 PGTW 290600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS/290600Z-300600ZOCT2020//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/290151ZOCT2020//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 29OCT20 0000Z, TROPICAL STORM 22W (GONI) WAS LOCATED 
NEAR 16.5N 136.6E, APPROXIMATELY 909 NM EAST OF MANILA, PHILIPPINES, 
AND HAD TRACKED WESTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 55 KNOTS GUSTING 
TO 70 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 90W) PREVIOUSLY LOCATED 
NEAR 6.7N 149.5E IS NOW LOCATED NEAR 5.8N 148.4E, APPROXIMATELY 509 
NM SOUTH-SOUTHEAST OF GUAM. ANIMATED MULTISPECTRAL SATELLITE 
IMAGERY, SUPPORTED BY A 290352Z AMSR2 GW1 89GHZ MICROWAVE IMAGE, 
DEPICTS BUILDING DEEP CONVECTION OVER A DEVELOPING LOW LEVEL 
CIRCULATION CENTER (LLCC) WITH FORMATIVE DEEP CONVECTIVE BANDING 
WRAPPING IN FROM THE EAST. A 290006Z METOP-C ASCAT PASS REVEALS 
TIGHT TROUGHING WITH AN EXTENSIVE SWATH OF HIGHER (20 TO 30 KNOTS) 
WINDS TO THE SOUTH BUT WITH WINDS OF ONLY 5-10 KNOTS ON NORTHERN 
SIDE OF THE BROAD CIRCULATION. 90W IS CURRENTLY IN A FAVORABLE 
ENVIRONMENT WITH GOOD EQUATORWARD OUTFLOW AND VERY WARM (30 TO 31 
CELSIUS) SEA SURFACE TEMPERATURES BEING SLIGHTLY OFFSET BY MODERATE 
(15 TO 25 KNOT) VERTICAL WIND SHEAR. GLOBAL MODELS ARE IN GOOD 
AGREEMENT THAT 90W WILL TRACK GENERALLY NORTH-NORTHWESTWARD 
INTENSIFYING TO WARNING THRESHOLD OVER THE NEXT 48 HOURS OR LESS. 
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 10 TO 15 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1008 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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