ABPW10 PGTW 111000
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/111000Z-120600ZOCT2020//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/110751ZOCT2020//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/110752ZOCT2020//
REF/C/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/110921ZOCT2020//
NARR/REF A IS A TROPICAL CYCLONE WARNING. REF B IS A TROPICAL 
CYCLONE FINAL WARNING. REF C IS A TROPICAL CYCLONE FORMATION/ 
ALERT.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 11OCT20 0600Z, TROPICAL STORM 16W (CHAN-HOM) WAS 
LOCATED NEAR 31.8N 141.4E, APPROXIMATELY 227 NM SOUTH-SOUTHEAST OF 
YOKOSUKA, JAPAN, AND HAD TRACKED EAST- SOUTHEASTWARD AT 09 KNOTS 
OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE 
ESTIMATED AT 35 KNOTS GUSTING TO 45 KNOTS. SEE REF A (WTPN31 PGTW 
110900) FOR FURTHER DETAILS.
      (2) AT 11OCT20 0600Z, TROPICAL STORM 17W (LINFA) WAS LOCATED 
NEAR 15.2N 108.3E, APPROXIMATELY 48 NM SOUTH OF DA NANG, VIETNAM, 
AND HAD TRACKED WESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 40 KNOTS GUSTING 
TO 50 KNOTS. SEE REF B (WTPN32 PGTW 110900) FOR THE FINAL WARNING ON 
THIS SYSTEM.
      (3) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 93W) PREVIOUSLY LOCATED 
NEAR 16.9N 119.2E IS NOW LOCATED NEAR 17.0N 118.9E, APPROXIMATELY 
183 NM NORTHWEST OF MANILA, PHILIPPINES. ANIMATED MULTISPECTRAL 
SATELLITE IMAGERY AND AN 110547Z AMSR2 89GHZ MICROWAVE IMAGE REVEAL 
SHALLOW FRAGMENTED FORMATIVE BANDING WRAPPING INTO A LOW LEVEL 
CIRCULATION WITH LIMITED DEEP CONVECTION. AN 110204Z ASCAT-B PASS 
REVEALS MAINLY 10-15KT WINDS WITH SOME 20KT WINDS DISPLACED TO THE 
NORTH. INVEST 93W IS IN A FAVORABLE ENVIRONMENT FOR DEVELOPMENT WITH 
LOW (<15KTS) VERTICAL WIND SHEAR, MODERATE UPPER LEVEL DIFFLUENCE, 
AND WARM (29-30C) SEA SURFACE TEMPERATURES. GLOBAL MODELS ARE IN 
STRONG AGREEMENT THAT INVEST 93W WILL QUICKLY CONSOLIDATE AND TRACK 
WEST-NORTHWESTWARD ACROSS THE SOUTH CHINA SEA. MAXIMUM SUSTAINED 
SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL 
PRESSURE IS ESTIMATED TO BE NEAR 1001 MB. THE POTENTIAL FOR THE 
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 
HOURS IS UPGRADED TO HIGH. SEE REF C (WTPN21 PGTW 110930) 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. UPDATED PARA 1.A.(2) TO REFLECT TS 17W FINAL WARNING.//
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