FVXX21 KWBC 200510
VOLCANIC ASH ADVISORY
ISSUED 0500 UTC 20 JUL 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-845         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 NOT SEEN IN THE SATELLITE IMAGERY
THROUGH 20/0445 UTC ALTHOUGH THERE ARE EXTENSIVE CLOUDS IN THE
AREA. THE GEOPHYSICAL INSTITUTE LAST REPORTED ASH OVER THE
SUMMIT AT 19/1320 UTC TO FL270.

TRAJECTORY: CURRENT MODEL DATA INDICATE ANY ASH FROM THE
SUMMIT TO FL270 WOULD MOVE TOWARD THE SOUTHWEST AT 10 - 15
KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 20/1100 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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