ABPW10 PGTW 290830
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/290830Z-300600ZOCT2020//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/290151ZOCT2020//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/290721ZOCT2020//
NARR/REF A IS A TROPICAL CYCLONE WARNING. REF B IS A TROPICAL 
CYCLONE FORMATION ALERT.//
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 5.8N 148.4E IS NOW LOCATED NEAR 6.2N 148.4E, APPROXIMATELY 478 
NM SOUTH-SOUTHEAST OF GUAM. ANIMATED MULTISPECTRAL SATELLITE 
IMAGERY, SUPPORTED BY A 290637Z SSMIS F-16 91GHZ MICROWAVE IMAGE, 
DEPICTS DEEP CONVECTION CONSOLIDATING OVER A RAPIDLY TIGHTENING LOW 
LEVEL CIRCULATION CENTER (LLCC) WITH FORMATIVE DEEP CONVECTIVE 
BANDING WRAPPING IN FROM THE EAST AND SOUTH. 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 EXCELLENT 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, QUICKLY INTENSIFYING TO WARNING THRESHOLD OVER THE 
NEXT 48 HOURS OR LESS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED 
AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE 
NEAR 1005 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT 
TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH. SEE 
REF B (WTPN21 PGTW 290730) FOR FURTHER DETAILS.
      (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 PARA 1.B.(1) TO 
HIGH.//
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