FVXX21 KWBC 241800
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1800 UTC 24 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-161         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 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY.  24/1200 UTC AVIATION MODEL WIND FORECAST
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ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSIONS.
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DETAILS OF ASH: AT 1715 UTC AN ASH PLUME IS OBSERVED EXTENDING FROM
THE VOLCANO TOWARD THE EAST REACHING THE POINT 1.4S 77.0W.  THE
PLUME IS 163 KM (88 NMI) LONG AND 45 KM (24 NMI) WIDE.  UPPER AIR
PATTERNS SUGGEST THAT ASH IS BELOW FL300.
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TRAJECTORY: ASH IS MOVING TOWARD THE EAST AT 10 TO 15 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 25/0000 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"