FVXX20 KWBC 302050
VOLCANIC ASH ADVISORY
ISSUED 2100 UTC 30 JUN 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-106      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 SATELLITE IMAGERY.
PILOT REPORT.  MONTSERRAT VOLCANO OBSERVATORY. AVIATION MODEL
WINDS.
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ERUPTION DETAILS: INCREASED SEISMIC ACTIVITY... PYROCLASTIC
FLOWS AND ROCKFALLS...
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DETAILS OF ASH CLOUD: VISIBLE SATELLITE IMAGERY THROUGH
30/2015 UTC SHOWS AN ASH PLUME MOVING NORTHWEST FROM THE
VOLCANO. AT 2015 UTC THE ASH EXTENDED 50 KM (27 NMI) TO A
POINT 1656N6234W AND WAS 7 KM (4 NMI) WIDE. THE ASH HEIGHT
BASED ON A PILOT REPORT IS ESTIMATED BETWEEN FL090 AND FL100.
THE MONTSERRAT VOLCANO OBSERVATORY CONFIRMED THAT SEISMIC
ACTIVITY HAS BEEN HIGH TODAY AND OBSERVED A SUBSTANTIAL
ROCKFALL AROUND 2000 UTC. 
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TRAJECTORY: ASH AT ABOUT FL100 IS MOVING TO THE NORTHWEST AT
20 TO 25 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 01/0300 UTC. 
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC
ASH ADVISORIES 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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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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CLARK/STREETT
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NNNN"Attached Graphic Map Depicting Ash" 

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