FVXX21 KWBC 201900
VOLCANIC ASH ADVISORY  
ISSUED 1900 UTC 20 JUN 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-721         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 20/1200 UTC
AVIATION MODEL.  GEOPHYSICAL INSTITUTE.
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS.  
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 20/1815 UTC SHOWS
CLOUDS OVER THE AREA OF THE VOLCANO MAKING DETECTION OF ASH
DIFFICULT.  IN ADDITION THE ASH SEEN EARLIER THIS MORNING IS
NO LONGER VISIBLE.  HOWEVER..AT 20/1651 UTC..THE GEOPHYSICAL
INSTITUTE DID REPORT ASH OVER THE SUMMIT TO FL220. 
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TRAJECTORY: ASH FROM THE SUMMIT TO FL220 WILL MOVE TOWARDS THE
WEST AT 15 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 21/0100 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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WALTER
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