FVXX22 KWBC 210610
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0610 UTC 21 MAR 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-037          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 INFRARED AND MULTISPECTRAL
IMAGERY. 21/0000 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: THE VOLCANO OBSERVATORY HAS REPORTED
ANOTHER ERUPTION BEGINNING AROUND 0530 UTC.  GOES-8 IS IN
ECLIPSE UNTIL 0630 UTC. THE LAST GOES-8 IMAGE AT 0345 UTC
SHOWS THE FIRST ERUPTION CLOUD SPREADING AT HIGH LEVELS TO THE 
EAST SOUTHEAST AND A FAINT POSSIBLE LOW LEVEL ASH CLOUD
FANNING OUT IN ALL DIRECTION BUT EAST FROM THE ISLAND. THE
INSTITUTE SAID THE INITIAL ERUPTION FLOW MOVED OUT SOUTHEAST
OVER THE OCEAN AND THEREFORE THE RESULTANT DETECTABLE CLOUD
ALSO CONTAINED A LOT OF EVAPORATED SEAWATER ALONG WITH ASH. AT
0345 UTC THE HIGH LEVEL ASH AND STEAM CLOUD EXTENDED EAST
SOUTHEAST (103 DEGREES) FROM THE SUMMIT ROUGHLY 305 KM ( NMI)
TO POINT 1534N 5808W AND WAS ABOUT 120 KM ( NMI) WIDE.  THE
ESTIMATED HEIGHT IS AROUND FL300. THE POSSIBLE LOWER LEVEL ASH
CLOUD IS MOVING IN ALL DIRECTIONS BUT MAINLY WESTERLY IN THE
LIGHT AN VARIABLE LOW LEVEL WINDS AND ESTIMATED BELOW FL090
AND BOUNDED BY POINTS 1618N 6036W 1628N 6112W 1603N 6138W
1549N 6048W. 
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ASH TO FL300 TO MOVE
EAST SOUTHEAST AT 25 TO 60 KNOTS. ASH BELOW FL090 WILL MOVE
MAINLY WEST AROUND 10 KNOTS  
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OUTLOOK:  SEE LATEST SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 21/0730 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"