FVXX21 KWBC 191000
VOLCANIC ASH ADVISORY
ISSUED 1000 UTC 19 JUL 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-842         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. WINDS FORECAST FROM THE AVIATION MODEL. GEOPHYSICAL
INSTITUTE REPORT.
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ERUPTION DETAILS: GASES WITH OCCASIONAL ASH EMISSIONS.  
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DETAILS OF ASH: ASH WAS LAST REPORTED OVER THE VOLCANO BY THE
GEOPHYSICAL INSTITUTE AT 18/2040 UTC AND WAS ESTIMATED AT
FL270. SATELLITE IMAGERY THROUGH 19/0945 UTC DOES NOT SHOW ANY
ASH BUT RECENTLY WHEN ASH HAS BEEN DETECTED IT WAS BEEN
OBSERVED ONLY IN VISIBLE IMAGERY.

TRAJECTORY: CURRENT MODEL DATA INDICATE LIGHT AND VARIABLE
WINDS FROM THE SUMMIT LEVEL TO FL270. 
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 19/1600 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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