FVXX23 WBC 282300
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2300 UTC 28 OCTOBER 1999 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 99-242 WEST INDIES 16.7N 62.2W
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BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05)
SUMMIT HEIGHT 3000 FT (915 M)
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SOURCES OF INFORMATION: MONTSERRAT VOLCANO OBSERVATORY..GOES-8
INFRARED AND MULTISPECTRAL IMAGERY AND GUADELOUPE 28/1200 UTC UPPER
AIR SOUNDING.
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ERUPTION DETAILS: ERUPTION OCCURRED AT 28/1651 UTC.
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DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 28/2215 UTC
CONTINUES TO SHOW A WELL DEFINED ASH PLUME. THE PLUME IS 20-57 KM
WIDE AND EXTENDS FROM: 16.7N/62.2W TO 16.8N/62.5W TO 16.4N/63.5W TO
16.8N/64.2W. THE TOTAL LENGTH OF THE PLUME IS APPROXIMATELY 250KM.
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TRAJECTORY: ASH AT FL150 CONTINUES TO MOVE TO THE WEST AT 20-25 KT.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH
ADVISORY STATEMENTS OFTEN ACCOMPANIED BY A MAP DEPICTING ASH
LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS
http://www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 29/0500 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
WALTER/SAB/NOAA/NESDIS
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NNNN"Attached Graphic Map Depicting Ash"
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