FVXX21 KWBC 210700
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0700 UTC 21 MAY 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-594         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...GEOPHYSICAL INSTITUTE...0000 UTC AVIATION MODEL
FORECAST DATA.
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS.   
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 21/0615 UTC DOES NOT
INDICATE ANY ASH. THERE IS A FAIRLY EXTENSIVE DECK OF
CLOUDINESS OVER AND ADJACENT TO THE SUMMIT WHICH IS MAKING IT
DIFFICULT TO ACCURATELY ASSESS THE LEVEL OF ACTIVITY. THE LAST
REPORT OF ASH WAS AT 21/2110 UTC WHEN THE GEOPHYSICAL
INSTITUTE REPORTED ASH TO FL280 OVER THE VOLCANO.
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TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL280 SHOULD MOVE TO
THE WEST AT 15 TO 20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 21/1300 UTC.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC
ASH ADVISORY STATEMENTS 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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ORRISON
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