ABIO10 PGTW 170600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN 
REISSUED/170600Z-171800ZFEB2026//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/161951ZFEB2026//
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 16FEB26 1800Z, TROPICAL CYCLONE 21S (GEZANI) WAS LOCATED 
NEAR 25.3S 43.6E, APPROXIMATELY 264 NM SOUTHEAST OF EUROPA ISLAND, AND 
HAD TRACKED EAST-SOUTHEASTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 60 KNOTS GUSTING TO 75 
KNOTS. SEE REF A (WTXS32 PGTW 162100) FOR FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) AN AREA OF CONVECTION (INVEST 97S) HAS PERSISTED NEAR 11.0S 
74.2E, APPROXIMATELY 271 NM SOUTH-SOUTHEAST OF DIEGO GARCIA. ANIMATED 
MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A CONSOLIDATING LOW LEVEL 
CIRCULATION (LLC) OBSCURED BY A BROAD REGION OF FLARING CONVECTION 
ESPECIALLY ON THE NORTH AND EASTERN PERIPHERY. A 170358Z ASCAT PASS 
REVELS THAT THE LLC REMAINS EMBEDDED WITHIN THE MONSOON TROUGH BUT IS 
BEGINNING TO CONGEAL INTO A SEPARATE CIRCULATION. THE ASCAT REVEALED 
WINDS UP TO 30 KNOTS ALONG THE NORTHERN FLANK OF THE TROUGH, AND UP TO 
20 KNOTS ALONG THE SOUTHERN FLANK. ENVIRONMENTAL ANALYSIS REVEALS 
MODERATELY FAVORABLE CONDITIONS FOR DEVELOPMENT WITH HIGH VERTICAL WIND 
SHEAR (20 TO 25KTS), WARM SEA SURFACE TEMPERATURES (28-29 C), AND GOOD 
EQUATORWARD OUTFLOW. GLOBAL MODELS ARE IN AGREEMENT OF THE STEADY 
DEVELOPMENT OF 97S WITH NAVGEM BEING THE MOST AGGRESSIVE DEPICTING RAPID 
DEVELOPMENT. ENSEMBLES MODELS ARE ALSO IN AGREEMENT OF ITS FORMATION, 
BOTH GLOBAL AND ENSEMBLE MODELS DEPICT 97S HAVING A GENERALLY SOUTH 
EASTERLY TRACK OVER THE NEXT 48 HOURS.  MAXIMUM SUSTAINED SURFACE WINDS 
ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED 
TO BE NEAR 1006 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT 
TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: ADDED LOW AREA IN PARA. 2.B.(1).//
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