ABIO10 PGTW 172300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN 
REISSUED/172300Z-181800ZJAN2025//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/171951ZJAN2025//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/172221ZJAN2025//
NARR/REF A IS A TROPICAL CYCLONE FINAL 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 17JAN25 1800Z, TROPICAL CYCLONE 07S (DIKELEDI) WAS LOCATED 
NEAR 35.0S 61.9E, APPROXIMATELY 927 NM SOUTH-SOUTHEAST OF PORT LOUIS, 
MAURITIUS, AND HAD TRACKED EAST-SOUTHEASTWARD AT 33 KNOTS OVER THE PAST 
SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 45 KNOTS 
GUSTING TO 55 KNOTS. SEE REF A (WTXS31 PGTW 172100) FOR THE FINAL WARNING 
ON THIS SYSTEM.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 90S) PREVIOUSLY LOCATED NEAR 
19.2S 119.5E IS NOW LOCATED NEAR 19.2S 119.9E, APPROXIMATELY 371 NM EAST-
NORTHEAST OF LEARMONTH. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY AND 
AN 171916Z SSMIS F18 91GHZ MICROWAVE SATELLITE IMAGE DEPICT CURVED CLOUD 
BANDS FROM THE NORTH-NORTHWEST WRAPPING INTO A QUICKLY CONSOLIDATING LLCC 
JUST OFF THE COAST OF AUSTRALIA, WITH CONVECTION BUILDING OVER THE CENTER 
AND JUST NORTH OF THE SYSTEM. ENVIRONMENTAL ANALYSIS INDICATES INVEST 90S 
IS IN A CONDUCIVE ENVIRONMENT FOR FURTHER DEVELOPMENT DUE TO VERY WARM 
(30-32C) SEA SURFACE TEMPERATURES, LOW (5-10 KNOTS) VERTICAL WIND SHEAR, 
AND MODERATE POLEWARD OUTFLOW ALOFT. GLOBAL DETERMINISTIC AND ENSEMBLE 
MODELS ARE IN GOOD AGREEMENT THAT 90S WILL CONTINUE TO CONSOLIDATE OVER 
THE NEXT 24 HOURS AND TRACK TO THE SOUTHWEST. MAXIMUM SUSTAINED SURFACE 
WINDS ARE ESTIMATED AT 25 TO 30 KNOTS. MINIMUM SEA LEVEL PRESSURE IS 
ESTIMATED TO BE NEAR 997 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A 
SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO 
HIGH. SEE REF B (WTXS21 PGTW 172230) 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 HIGH.//
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