FVXX21 KWBC 171200
VOLCANIC ASH ADVISORY
ISSUED 1200 UTC 17 JUL 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-833         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.  GEOPHYSICAL INSTITUTE REPORT.
6 HOUR WIND FORECAST FROM THE 17/0600 UTC AVIATION MODEL.
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ERUPTION DETAILS: GASES WITH OCCASIONAL ASH EMISSIONS.  
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DETAILS OF ASH: ASH IS NOT DETECTED ON THE SATELLITE IMAGERY
THROUGH 17/1145 UTC.  THE LAST REPORT OF ASH BY THE
GEOPHYSICAL INSTITUTE WAS AT 16/1659 UTC WITH ASH TO FL280.
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TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL280 WOULD MOVE WEST
AT 20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 17/1800 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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