ABIO10 PGTW 170330
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN
/REISSUED/170330Z-171800ZFEB2022//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/161951ZFEB2022//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/170251ZFEB2022//
NARR/REF A IS A TROPICAL CYCLONE WARNING. REF B IS A 
TROPICAL CYCLONE FORMATION ALERT.//
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 16FEB22 1800Z, TROPICAL CYCLONE 13S (THIRTEEN) WAS 
LOCATED NEAR 14.1S 68.4E, APPROXIMATELY 485 NM SOUTH-SOUTHWEST OF 
DIEGO GARCIA, AND HAD TRACKED WESTWARD AT 08 KNOTS OVER THE PAST SIX 
HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 35 KNOTS 
GUSTING TO 45 KNOTS. SEE REF A (WTXS31 PGTW 162100) FOR FURTHER 
DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:   
      (1) THE AREA OF CONVECTION (INVEST 96S) PREVIOUSLY LOCATED 
NEAR 14.0S 69.2E IS NOW THE SUBJECT OF A TROPICAL CYCLONE WARNING. 
SEE PARA. 2.A.(1) FOR FURTHER DETAILS.
      (2) THE AREA OF CONVECTION (INVEST 97S) PREVIOUSLY LOCATED 
NEAR 15.5S 91.7E IS NOW LOCATED NEAR 17.4S 89.7E, APPROXIMATELY  
597NM SOUTHWEST OF THE COCOS ISLANDS. ANIMATED ENHANCED INFRARED 
SATELLITE IMAGERY DEPICTS A BROAD, WEAKLY-ORGANIZED LOW-LEVEL 
CIRCULATION (LLC) WITH FLARING DEEP CONVECTION. A 162240Z SSMIS 
91GHZ COLOR COMPOSITE MICROWAVE IMAGE SHOWS WEAK CONVECTIVE BANDING 
WRAPPING AROUND THE PERIPHERY OF AN ELONGATED MONSOONAL STRUCTURED 
LOW-LEVEL CIRCULATION CENTER. ENVIRONMENTAL CONDITIONS ARE 
MARGINALLY FAVORABLE WITH DIFFLUENT OUTFLOW AND (10KTS) VERTICAL 
WIND SHEAR OFFSET BY DRY AIR ENTRAINMENT. SEA SURFACE TEMPERATURES 
ARE CONDUCIVE AT 27-28C. GLOBAL MODELS ARE IN AGREEMENT ABOUT THE 
INTENSIFICATION AND GENERAL SOUTHWARD TRACK OF THIS LARGE SYSTEM 
OVER THE NEXT 24-48 HOURS. THIS SYSTEM IS CURRENTLY BEING ASSESSED 
AS A MONSOON DEPRESSION WITH THE POSSIBILITY OF CONSOLIDATING INTO A 
TROPICAL CYCLONE. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 
25 TO 30 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 REMAINS HIGH. SEE REF B (WTXS22 
PGTW 170300) FOR FURTHER DETAILS.     
      (3) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: REISSUED TROPICAL CYCLONE FORMATION 
ALERT FOR INVEST 97S.//
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