FVXX21 KWBC 101930
VOLCANIC ASH ADVISORY
ISSUED 1930 UTC 10 JUL 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-807         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. WIND FORECAST FROM AVIATION MODEL. 
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ERUPTION DETAILS: GASES WITH OCCASIONAL ASH EMISSIONS.  
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 10/1845 UTC SHOWS
CLOUDS COVERING THE AREA AROUND THE SUMMIT MAKING ASH
DETECTION DIFFICULT. ASH WAS LAST SEEN IN SATELLITE IMAGERY AT
10/1645 UTC MOVING WEST-SOUTHWEST FROM THE SUMMIT.  THE ASH
PLUME WAS ESTIMATED BETWEEN FL180 AND FL220.
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TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL220 IS FORECAST TO 
MOVE TOWARD THE WEST AROUND 10 TO 15 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 11/0130 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
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