FVXX21 KWBC 181600
VOLCANIC ASH ADVISORY
ISSUED 1600 UTC 18 JUL 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-839         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.  12 HOUR WIND FORECAST FROM THE      18/0600 UTC AVIATION RUN.
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ERUPTION DETAILS: GASES WITH OCCASIONAL ASH EMISSIONS.  
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DETAILS OF ASH: ASH IS NOT SEEN IN THE SATELLITE IMAGERY
THROUGH 18/1515 UTC. HOWEVER SEVERAL PILOT REPORTS INDICATE
ASH OVER THE VOLCANO TO FL240 MOVING TOWARD THE NORTHEAST.
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TRAJECTORY: CURRENT MODEL DATA INDICATE LIGHT AND VARIABLE
WINDS FROM THE SUMMIT LEVEL TO FL240. 
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 18/2200 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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