ABPW10 PGTW 201330
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/201330Z-210600ZDEC2020//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/200752ZDEC2020//
NARR/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 20DEC20 0600Z, TROPICAL DEPRESSION 26W (KROVANH) WAS 
LOCATED NEAR 10.3N 114.9E, APPROXIMATELY 485 NM EAST OF HO CHI MINH 
CITY, VI, AND HAD TRACKED WEST- NORTHWESTWARD AT 10 KNOTS OVER THE 
PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 30 
KNOTS GUSTING TO 40 KNOTS. SEE REF A (WTPN31 PGTW 200900) FOR 
FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST):
   A. TROPICAL CYCLONE SUMMARY: NONE.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: 
      (1) AN AREA OF CONVECTION (REMNANTS OF TC 05P) HAS PERSISTED 
NEAR 23.9S 178.7E, APPROXIMATELY 382 NM SOUTH-SOUTHEAST OF SUVA, 
FIJI. THE SYSTEM IS CURRENTLY CLASSIFIED AS A SUBTROPICAL STORM, 
GENERALLY CHARACTERIZED AS HAVING BOTH TROPICAL AND MID-LATITUDE 
CYCLONE FEATURES. ANIMATED ENHANCED INFRARED IMAGERY (EIR) DEPICTS A 
FULLY EXPOSED LOW LEVEL CIRCULATION WITH AN AREA OF CONVECTION BEING 
SHEARED TO THE SOUTH-SOUTHEAST. A 200704Z SSMIS 91GHZ SATELLITE 
IMAGE REVEALS A WELL-DEFINED LOW LEVEL CIRCULATION CENTER (LLCC) 
WITH AN AREA OF DEEP CONVECTION DISPLACED TO THE SOUTH-SOUTHEAST. 
THE SYSTEM IS IN AN UNFAVORABLE ENVIRONMENT CHARACTERIZED BY HIGH 
(20-30 KT) VERTICAL WIND SHEAR (VWS) AND COOL (25C) SEA SURFACE 
TEMPERATURES (SST). THE SYSTEM IS ALSO EMBEDDED WITHIN AN UPPER 
LEVEL MID-LATITUTE TROUGH. GLOBAL MODELS GENERALLY AGREE THAT THE 
SYSTEM WILL SLOWLY TRACK SOUTH-SOUTHWEST AND SLOWLY DISSIPATE. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 40 TO 45 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 989 MB. FOR 
HAZARDS AND WARNINGS, REFERENCE THE FLEET WEATHER CENTER SAN DIEGO 
HIGH WINDS AND SEAS PRODUCT OR REFER TO LOCAL WMO DESIGNATED 
FORECAST AUTHORITY. THE POTENTIAL FOR THE SYSTEM TO TRANSITION INTO 
A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.
      (2) NO OTHER SUBTROPICAL SYSTEMS.
3. JUSTIFICATION FOR REISSUE: ADDED AREA IN PARA 2.C.(1) AS LOW.//
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