FVXX20 KWBC 301810
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1810 UTC 30 APR 1999 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 99-121   WEST INDIES 16.72N 62.18W
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BACKGROUND:    SOUFRIERE HILLS MONTSERRAT (1600-05)
               SUMMIT HEIGHT 3000 FT (915 M)
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SOURCES OF INFORMATION: PILOT REPORT...MONTSERRAT VOLCANO
OBSERVATORY...VISBLE GOES 8 IMAGERY
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ERUPTION DETAILS: ASH VENTING EVENT AROUND 30/1732 UTC.
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DETAILS OF ASH CLOUD: THROUGH THE 1745 UTC GOES-8 VISIBLE IMAGERY
SHOWS ASH LEAVING THE ISLAND AND MOVING OFF TO THE NORTHWEST. THE
ASH EXTENDS UPTO FL150 ACCORDING TO THE MVO. A PILOT REPORT
INDICATES ASH TO FL100.
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TRAJECTORY: NORTHWEST AT 15 TO 20 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 SIGMETS.
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ANOTHER MESSAGE WILL BE ISSUED ASAP TO INCLUDE A GRAPHIC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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