ABIO10 PGTW 120600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN 
REISSUED/120600Z-121800ZMAR2025//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/111951ZMAR2025//
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 11MAR25 1800Z, TROPICAL CYCLONE 24S (IVONE) WAS LOCATED 
NEAR 19.8S 77.0E, APPROXIMATELY 806 NM SOUTH-SOUTHEAST OF DIEGO GARCIA, 
AND HAD TRACKED WESTWARD AT 11 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 45 KNOTS GUSTING TO 55 KNOTS. 
SEE REF A (WTXS31 PGTW 112100) FOR FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (REMNANTS 25S) PREVIOUSLY LOCATED NEAR 
16.1S 35.9E IS NOW LOCATED NEAR 17.4S 35.1E, APPROXIMATELY 139 NM NORTH 
OF BEIRA. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS THE 
REMNANTS OF 25S AS DISORGANIZED CONVECTION FEEDING INTO A LOW-LEVEL 
CIRCULATION. THE SYSTEM IS CURRENTLY OVER LAND AND ATMOSPHERIC 
CONDITIONS ARE EXPECTED TO BE GENERALLY FAVORABLE AS THE SYSTEM TRANSITS 
SOUTHEAST TOWARDS THE MOZAMBIQUE CHANNEL OVER THE NEXT 36 HOURS. LOW TO 
MODERATE VERTICAL WIND SHEAR (10-15KTS), STRONG DUAL CHANNEL OUTFLOW 
ALOFT, AND A VERY HUMID LAYER ARE ALL GREATLY SUPPORTING THE 
REGENERATION POTENTIAL. GLOBAL DETERMINISTIC MODELS AND ENSEMBLE MODELS 
ARE IN GOOD AGREEMENT THAT 25S WILL CONTINUE TO CONSOLIDATE AS IT TRACKS 
BACK OVER WARM (28-29C) SEA SURFACE TEMPERATURES WITHIN THE MOZAMBIQUE 
CHANNEL BETWEEN TAU 12 AND 36. MAXIMUM SUSTAINED SURFACE WINDS ARE 
ESTIMATED AT 23 TO 28 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO 
BE NEAR 1000 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT 
TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO MEDIUM.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 2.B.(1) TO MEDIUM.//
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