ABIO10 PGTW 311500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN 
REISSUED/311500ZDEC2023-311800ZDEC2023//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/311351ZDEC2023//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. NORTH INDIAN OCEAN AREA (MALAY PENINSULA WEST TO COAST OF AFRICA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
2. SOUTH INDIAN OCEAN AREA (135E WEST TO COAST OF AFRICA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 31DEC23 1200Z, TROPICAL CYCLONE 04S (ALVARO) WAS LOCATED 
NEAR 20.4S 39.0E, APPROXIMATELY 127 NM NORTH-NORTHWEST OF EUROPA ISLAND, 
AND HAD TRACKED EAST-SOUTHEASTWARD AT 06 KNOTS OVER THE PAST SIX HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 35 KNOTS GUSTING TO 45 
KNOTS. SEE REF A (WTXS31 PGTW 311500) FOR FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 95S) PREVIOUSLY LOCATED NEAR 
20.4S 38.5E IS NOW THE SUBJECT OF A TROPICAL CYCLONE WARNING. SEE PARA. 
2.A.(1) FOR FURTHER DETAILS.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 2.B.(1) TO WARNING 
STATUS.//
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