FVXX22 KWBC 161910
VOLCANIC ASH ADVISORY 
ISSUED 1910 UTC 16 AUG 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-141    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.  16/1200 UTC GUADELOUPE UPPER AIR
SOUNDING. MONTSERRAT VOLCANO OBSERVATORY.
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ERUPTION DETAILS: ROCKFALLS AND SMALL PYROCLASTIC FLOWS.
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DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 16/1815 UTC
SHOWS A FAINT ASH PLUME TO THE WEST NORTHWEST OF THE SUMMIT.
THIS ASH PLUME IS THIN AND HAZY IN APPEARANCE AND EXTENDS
ROUGHLY 108 KM (58 NMI) FROM THE SUMMIT TO THE POINT 1657N
6310W AND IS ABOUT 21 KM (11 NMI) WIDE. THE MONTSERRAT VOLCANO
OBSERVATORY HAS CONFIRMED THAT SHORT PERIOD ROCKFALLS HAVE
CONTINUED THROUGHOUT THE DAY. THE ASH IS ESTIMATED TO BE BELOW
FL070.
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TRAJECTORY: ASH AT ABOUT FL070 IT WOULD MOVE TOWARD THE WEST
NORTHWEST AT ABOUT 15 TO 25 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 17/0100 UTC.
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REAL TIME SATELLITE IMAGERY AND 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
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NNNN"Attached Graphic Map Depicting Ash" 

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