FVXX21 KWBC 221900
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1900 UTC 22 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-474         ECUADOR 0128S 7826W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND
MULTISPECTRAL IMAGERY. 6 HOUR WIND FORECAST FROM THE 22/1800
UTC AVIATION MODEL.
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ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS.   
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DETAILS OF ASH: GOES-8 IMAGERY THROUGH 22/1815 UTC SHOWS THAT
THE ASH PLUME HAS SHIFTED FROM THE ORIENTATION THIS MORNING
AND HAS DIMINISHED SOMEWHAT. THE PLUME NOW EXTENDS FROM THE
SUMMIT TOWARD THE WEST REACHING THE POINT 0126S 7850W. THE
PLUME IS ABOUT 42 KM (23 NMI) LONG AND 10 KM (5 NMI) WIDE. THE
ASH HEIGHT IS ABOUT FL200.
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TRAJECTORY: ASH IS MOVING TOWARD THE WEST AT ABOUT 15 KNOTS.
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THE NEXT STATEMENT WILL BE ISSUED BY 23/0100 UTC.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC
ASH ADVISORY STATEMENTS 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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RUMINSKI
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NNNN"Attached Graphic Map Depicting Ash" 

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