ABIO10 PGTW 300100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN
/REISSUED/300100Z-301800ZMAR2022//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/291351ZMAR2022//
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 29MAR22 1200Z, TROPICAL CYCLONE 22S (HALIMA) WAS 
LOCATED NEAR 21.4S 82.5E, APPROXIMATELY 1035 NM SOUTH-SOUTHEAST OF 
DIEGO GARCIA, AND HAD TRACKED NORTH- NORTHWESTWARD AT 04 KNOTS OVER 
THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED 
AT 45 KNOTS GUSTING TO 55 KNOTS. SEE REF A (WTXS32 PGTW 291500) FOR 
FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 96S) HAS PERSISTED NEAR 
15.6S 109.3E, APPROXIMATELY 514NM NORTHWEST OF LEARMONTH, AUSTRALIA. 
VERTICAL TILT IS EVIDENT IN ANIMATED MULTISPECTRAL IMAGERY (MSI) 
WITH LOW LEVEL BANDS WRAPPING INTO A LOW LEVEL CIRCULATION (LLC) 
OFFSET JUST TO THE NORTHWEST OF THE UPPER-MID LEVEL TURNING. THE 
TROPICAL ENVIRONMENT IS MARGINAL WITH MODERATE POLEWARD OUTFLOW AND 
WARM (29-30C) SEA SURFACE TEMPERATURES, OFFSET BY MODERATE (20-
25KTS) VERTICAL WIND SHEAR. GLOBAL MODELS AGREE ON A SIMILAR TRACK 
WITH 96S MOVING SOUTHEAST OVER THE 48 HOURS, WITH GFS AND ECMWF 
GLOBAL FIELDS DEPICTING A SMALL FIST OF NEAR-GALE FORCE WINDS ALONG 
THE EASTERN PERIPHERY AS IT SKIRTS THE COAST NEAR LEARMONTH, 
AUSTRALIA. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 12 TO 18 
KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. 
THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE 
WITHIN THE NEXT 24 HOURS IS UPGRADED TO LOW.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA. 2.B.(1) TO 
LOW.//
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