FVXX21 KWBC 252300
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 2300 UTC 25 MAY 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-613         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 FORECAST FROM THE 12 UTC
AVIATION MODEL. GEOPHYSICAL INSTITUTE
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS.   
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DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE REPORTS THAT A LARGE
EXPLOSION OCCURRED AT 2230 UTC PRODUCING AN ASH COLUMN
ESTIMATED BY GROUND OBSERVERS TO FL300.  THE ASH IS MOVING
FROM THE SUMMIT TO THE WEST. SATELLITE IMAGERY THROUGH 2245
UTC SHOWS DENSE CLOUDS OVER THE AREA MAKING ASH DETECTION
DIFFICULT.    
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TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL300 WILL MOVE WEST AT
20 TO 30 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 26/0500 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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CLARK
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