FVXX21 KWBC 230100
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0100 UTC 23 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-475         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 INFRARED AND MULTISPECTRAL
IMAGERY.
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ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS.   
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DETAILS OF ASH: GOES-8 IMAGERY THROUGH 22/2345 UTC SHOWS THAT
AN ASH PLUME CONTINUES TO EMMANATE FROM THE SUMMIT. THERE IS
SOME DIFFICULTY IN SEEING IT BUT THE MULTISPECTRAL IMAGERY
STRONGLY SUGGESTS AN ASH PLUME MOVING TO THE NORTHWEST. IN
ADDITION THERE IS A HOT SPOT DETECTABLE AT THE SUMMIT. AS OF
2345 UTC THE ASH PLUME EXTENDS ROUGHLY 82 KM (44 NMI)
NORTHWESTWARD TO THE POINT 0106S 7907W. THE PLUME IS ROUGHLY
29 KM (16 NMI) WIDE. ASH HAS BEEN ESTIMATED TO BE REACHING
FL200.
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TRAJECTORY: ASH IS MOVING TOWARD THE NORTHWEST AT ABOUT 10 TO
20 KNOTS.
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THE NEXT STATEMENT WILL BE ISSUED BY 23/0700 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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ORRISON
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NNNN"Attached Graphic Map Depicting Ash" 

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