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From:	SIU Weather Processor <[email-masked]>
Subject:      Indian-S: Subj/significant Tropical Weather Advisory For The
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TROPICAL WEATHER INFORMATION FOR THE INDIAN OCEAN

668
ABIO10 PGTW 181800
MSGID/GENADMIN/NAVPACMETOCCEN WEST GU//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE
INDIAN OCEAN/181800Z/181900Z DEC 97//
RMKS/
1. NORTH INDIAN OCEAN AREA (MALAY PENINSULA WEST TO
COAST OF AFRICA):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY: NONE.
2. SOUTH INDIAN OCEAN AREA (135E9 WEST TO COAST OF
AFRICA):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY:
(1) AN AREA OF CONVECTION IS LOCATED NEAR 11S3
118E1.  ANIMATED SATELLITE IMAGERY INDICATES THAT THIS
AREA HAS CONTINUED TO PERSIST DURING THE PAST 18 HOURS
ALONG A TROUGH EXTENDING TOWARDS THE NORTHWEST COAST OF
AUSTRALIA.  ALTHOUGH EARLIER SATELLITE IMAGERY INDICATED
SOME CYCLONIC TURNING IN THE MIDDLE LEVELS OF THE
ATMOSPHERE, MORE RECENT IMAGERY INDICATES THAT CONVECTION
HAS TAKEN A MORE LINEAR SHAPE.  ADDITIONALLY, A MICROWAVE
IMAGER PASS AT 181129Z2 INDICATED THAT A WELL DEFINED
LOWER LEVEL CIRCULATION CENTER HAS YET TO DEVELOP.
MAXIMUM SUSTAINED WINDS ARE ESTIMATED AT 10 TO 20 KNOTS.
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE 1005 MB.
THE POTENTIAL FOR SIGNIFICANT TROPICAL CYCLONE
DEVELOPMENT WITHIN THE NEXT 24 HOURS IS POOR.
(2) NO OTHER SUSPECT AREAS.
FORECAST TEAM: COCKS/SMITH/JOHNSON/UROGI//

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