FVXX22 KWBC 212000
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 2000 UTC 21 MAR 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-040          WEST INDIES 1643N 6211W  
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BACKGROUND:    SOUFRIERE HILLS  MONTSERRAT (1600-05)
               SUMMIT HEIGHT  3000 FT (915M)
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SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND
MULTISPECTRAL IMAGERY. 21/1200 UTC UPPER AIR SOUNDING FROM
GUADELOUPE.  MONTSERRAT VOLCANO OBSERVATORY REPORT.
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ERUPTION DETAILS: MAJOR ERUPTION BEGINNING 20/2340 UTC WITH
ANOTHER ERUPTION STARTING AROUND 21/0530 UTC. 
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DETAILS OF ASH CLOUD: VISIBLE AND MULTISPECTRAL IMAGERY
THROUGH 1915 UTC SHOWS AN AREA OF MID LEVEL ASH CONTINUING TO
MOVE TO THE EAST OF MONTSERRAT. THE ASH IS ESTIMATED AT FL150.
THE ASH IS BOUNDED BY THE FOLLOWING POINTS: 1653N 5645W TO
1807N 5508W TO 1805N 5158W TO 1733N 5204W TO 1651N 5427W TO
1555N 5634W TO 1653N 5645W. THE LEADING EDGE OF THIS ASH IS
1047 KM (566 NMI) TO THE EAST OF THE VOLCANO.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ASH TO FL150 WILL MOVE
TO THE EAST AT 20 KTS.
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OUTLOOK:  SEE LATEST SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 22/0200 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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KARST
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NNNN"Attached Graphic Map Depicting Ash" 

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