ABIO10 PGTW 060800
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN 
REISSUED/060800Z-061800ZJAN2026//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/051951ZJAN2026//
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:
      (1) AN AREA OF CONVECTION (INVEST 90B) HAS PERSISTED NEAR 5.1N 
89.4E, APPROXIMATELY 440 NM SOUTH-SOUTHWEST OF PORT BLAIR. ANIMATED 
MULTISPECTRAL SATELLITE IMAGERY DEPICTS A BROAD LOW LEVEL CIRCULATION 
(LLCC) WITH FLARING CONVECTION OVER THE WESTERN SEMICIRCLE. A 060243Z 
METOP-B ASCAT PASS REVEALED AN ELONGATED CIRCULATION WITH 20-25 KTS 
CONFINED TO THE NORTHERN PERIPHERY. ENVIRONMENTAL ANALYSIS REVEALS A 
MARGINAL ENVIRONMENT FOR DEVELOPMENT WITH GOOD POLEWARD UPPER-LEVEL 
OUTFLOW AND WARM SEA SURFACE TEMPERATURES (28 TO 29 C) OFFSET BY 
MODERATE TO HIGH EASTERLY VERTICAL WIND SHEAR (20 TO 25 KTS). GLOBAL 
MODELS AGREE ON THE 90B TRACKING WEST-NORTHWESTWARD AS IT CONTINUES TO 
CONSOLIDATE OVER THE NEXT 24-48 HOURS. THE ENSEMBLE MODELS SHOW THE 
MOST AGGRESSION IN THE FORMATION OF 90B WITH ECENS BEING THE MOST 
AGGRESSIVE. ON THE OTHER HAND, DETERMINISTIC MODELS SHOW 90B 
STRUGGLING TO DEVELOP. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED 
AT 20 TO 25 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 LOW.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
2. SOUTH INDIAN OCEAN AREA (135E WEST TO COAST OF AFRICA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 05JAN26 1800Z, TROPICAL CYCLONE 12S (JENNA) WAS LOCATED 
NEAR 14.4S 96.1E, APPROXIMATELY 140 NM SOUTH-SOUTHWEST OF THE COCOS 
ISLANDS, AND HAD TRACKED SOUTH- SOUTHWESTWARD AT 12 KNOTS OVER THE 
PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 65 
KNOTS GUSTING TO 80 KNOTS. SEE REF A (WTXS31 PGTW 052100) FOR FURTHER 
DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 09S) PREVIOUSLY LOCATED NEAR 
17.2S 52.1E HAS DISSIPATED AND IS NO LONGER SUSPECT FOR THE 
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE IN THE NEXT 24 HOURS.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: ADDED LOW AREA IN PARA. 1.B.(1) AND 
DISSIPATED AREA IN PARA. 2.B.(1).//
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