FVXX21 KWBC 211330
VOLCANIC ASH ADVISORY  
ISSUED 1330 UTC 21 JUN 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-724         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. 6 HOUR WIND FORECAST FROM THE   
21/0600 UTC AVIATION MODEL.  GEOPHYSICAL INSTITUTE.
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ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH
EMISSIONS.  
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 21/1245 UTC SHOWS
EXTENSIVE CLOUDS OVER AND AROUND THE AREA OF THE VOLCANO
MAKING DETECTION OF ASH DIFFICULT.  HOWEVER AT 211025 UTC THE
GEOPHYSICAL INSTITUTE DID REPORT ASH OVER THE SUMMIT BUT DID
NOT INDICATE A HEIGHT.
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TRAJECTORY: ANY ASH THAT MAY EXIST BETWEEN THE SUMMIT AND
FL220 WOULD MOVE TOWARDS THE WEST AT 20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 21/1930 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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