FVXX21 KWBC 161140
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1140 UTC 16 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-127         ECUADOR 1.47S 78.44W 
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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.
AVIATION MODEL UPPER-AIR DATA AND UPPER AIR WIND DATA FROM INSTITUTO
GEOFISICO. 
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ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS
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DETAILS OF ASH: MULTISPECTRAL SATELLITE IMAGERY WHICH HAD PREVIOUSLY
SHOWN THE ASH PLUME FROM TUNGURAHUA MOVING NORTHEAST NOW INDICATES
ASH MOVING TOWARDS THE NORTHWEST.  THIS CHANGE IN DIRECTION SUGGESTS
THAT THE HEIGHT OF THE ERUPTING COLUMN HAS INCREASED TO FL300.  AT
1045 UTC ASH EXTENDED FROM THE SUMMIT TO 1.4S/78.4W TO 1.3S/78.5W TO
1.2S/78.2W.  THE PLUME WAS 20 KM (11 NMI) ACROSS AT ITS GREATEST
WIDTH.
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TRAJECTORY: ASH BETWEEN FL240 AND FL300 WAS MOVING TOWARDS THE
NORTHWEST AT ABOUT 15 KNOTS WHILE ASH BELOW FL240 WAS MOVING
NORTHEAST AT ABOUT 10 KNOTS.
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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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OUTLOOK:  SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 16/1730 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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TURK
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NNNN"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"