ABPW10 PGTW 170830
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/170830Z-180600ZAUG2021//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/170751ZAUG2021//
AMPN/REF A IS A TROPICAL CYCLONE FINAL WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 17AUG21 0600Z, TROPICAL DEPRESSION 16W (SIXTEEN) WAS 
LOCATED NEAR 13.4N 143.9E, APPROXIMATELY 61 NM WEST-SOUTHWEST OF 
ANDERSEN AFB, AND HAD TRACKED WESTWARD AT 12 KNOTS OVER THE PAST 
SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 20 
KNOTS GUSTING TO 30 KNOTS. SEE REF A (WTPN31 PGTW 170900) FOR THE 
FINAL WARNING ON THIS SYSTEM.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY: 
      (1) AN AREA OF CONVECTION (REMNANTS OF TD 16W) HAS PERSISTED 
NEAR 13.5N 143.3E, APPROXIMATELY 61 NM WEST-SOUTHWEST OF ANDERSON 
AFB, GUAM. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY, A 170344Z 
ATMS 165 GHZ IMAGE DEPICT SHALLOW CONVECTION SURROUNDING THE LOW 
LEVEL CENTER WITH POCKETS OF DEEPER AND DISORGANIZED CONVECTION TO 
THE EAST AND NORTHEAST. THE OVERALL ENVIRONMENT IS MARGINAL WITH 
VERY  WARM SST VALUES (31-32 CELSIUS) OFFSET BY MODERATE TO HIGH 
VERTICAL WIND SHEAR (20-30 KTS). GLOBAL NUMERICAL MODEL GUIDANCE IS 
IN TIGHT AGREEMENT THAT THE REMNANTS OF TD 16W WILL NOT 
REINTENSIFY, HOWEVER, THE HWRF AND COAMPS MESOSCALE MODELS DEPICT 
INTENSIFICATION BEYOND 25 KTS BETWEEN TAUS 24 AND 48. MAXIMUM 
SUSTAINED SURFACE WINDS ARE ESTIMATED BETWEEN 15-20 KTS. MINIUM SEA 
LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1009 MB. THE POTENTIAL FOR 
THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 
24 HOURS IS MEDIUM. SEE REF A (WTPN31 PGTW 170900) FOR FURTHER 
DETAILS.
   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: ISSUED FINAL WARNING FOR TD 16W. 
ADDED REMINANTS OF TD 16W IN PARA 1.B.(1) AS MEDIUM.//
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