FVXX20 KWBC 112200
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2200 UTC 11 JAN 1999 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 99-005    WEST INDIES 16.7N 62.2W  
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BACKGROUND:    SOUFRIERE HILLS MONTSERRAT (1600-05)
               SUMMIT HEIGHT 3000FT (915M)
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SOURCES OF INFORMATION:  GOES-8 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY.  1200 UTC GUADELOUPE SOUNDING. MONTSERRAT VOLCANO OBSERVATORY
REPORT
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ERUPTION DETAILS:   ERUPTED ON JAN 11 AT 2033 UTC.
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DETAILS OF ASH CLOUD; THE MONTSERRAT VOLCANO OBSERVATORY REPORTED A
LOW LEVEL ERUPTION OF THE SOUFRIERE HILLS VOLCANO FOR 1 MINUTE AT 2033
UTC.  SATELLITE IMAGERY THROUGH 2132 UTC INDICATED THE PLUME SPANNED
AN ARC WITHIN 5 KM (3 NMI) EITHER SIDE OF A LINE FROM 16.5N/62.4W  TO
16.6N/62.5W TO 16.7N/62.5W TO 16.9N/62.3W.  THE HEIGHT OF THE ASH
CLOUD...BASED ON OBSERVED MOTION AND THE 1200 UTC GUADELOUPE
SOUNDING...WAS ESTIMATED NEAR FL150.  THIS IS SOMEWHAT HIGHER THAN THE
HEIGHT REPORTED BY THE MONTSERRAT VOLCANO OBSERVATORY AT THE TIME OF
THE ERUPTION.
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TRAJECTORY: ASH BETWEEN FL100 AND FL150 WAS MOVING TOWARD THE WEST
SOUTHWEST AT 15 KNOTS WHILE ASH AT AND BELOW FL100 WAS MOVING WEST AT
15 KNOTS. 
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THIS AND OTHER VOLCANIC ASH ADVISORY STATEMENTS OFTEN ACCOMPANIED BY
A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS  
www.ssd.noaa.gov/VAAC/messages.html
(all lower case except /VAAC/)
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OUTLOOK:  SEE LATEST SIGMETS.
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NEXT ADVISORY WILL BE ISSUED AROUND 12/0400 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN
"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"