314 
abio10 pgtw 232330
msgid/genadmin/navmarfcstcen Pearl Harbor hi/jtwc//
subj/significant tropical weather advisory for the Indian Ocean
/reissued/232330z-241800znov2009//
ref/a/msg/navmarfcstcen Pearl Harbor hi/231954znov2009//
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) the area of convection previously located near 5.1n 91.1e,
is now located near 5.0n 91.3e, approximately 240 nm west of the
northern tip of Sumatra. Animated infrared satellite imagery
indicates improved consolidation of the low-level circulation center
(LLCC). A 231940z AMSR-E image depicts a defined LLCC with curved
convective banding wrapping into the southwest quadrant. A 230336z
ascat pass showed a 20-25 knot system. Upper-level analysis
indicates that the LLCC is located well south of the subtropical
ridge axis and is under moderate, easterly vertical wind shear. Deep
convection is being fueled by diffluent flow aloft. Maximum
sustained surface winds are estimated at 20 to 25 knots. Minimum sea
level pressure is estimated to be near 1004 mb. The potential for
the development of a significant tropical cyclone within the next 24
hours is upgraded to fair.
      (2) no other suspect areas.
2. South Indian Ocean area (135e west to coast of Africa):
   a. Tropical cyclone summary:
      (1) at 231800z, tropical cyclone 02s (bongani) was located
near 9.1s 52.7e, approximately 685 nm north-northeast of
Antananarivo Madagascar, and had tracked west-southwestward at 06
knots over the past six hours. Maximum sustained surface winds were
estimated at 45 knots gusting to 55 knots. See ref a (wtxs31 pgtw
232100) for further details.
      (2) no other tropical cyclones.
   B. Tropical disturbance summary: none.
3. Justification for reissue: upgraded area in para 1.B.(1) to fair.

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