FVXX21 KWBC 121130
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VOLCANIC ASH ADVISORY
ISSUED 1130 UTC 12 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-108         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...U.S. NUMERICAL MODEL WINDS
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ERUPTION DETAILS: CONTINUOUS VENTING OF ASH AND STEAM NOW AT LOWER
LEVELS. A NEW EXPLOSION OCCURRED AT 0415 UTC. 
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DETAILS OF ASH: GOES-8 VISIBLE MULTISPECTRAL AND INFRARED IMAGERY
THROUGH 1115 UTC INDICATED HIGH LEVEL METEOROLOGICAL CLOUDS OVER THE
SUMMIT AND THE IMMEDIATE SURROUNDINGS PRECLUDING THE DETECTION OF
ASH.  THE EARLIER PLUME FROM THE 0415 UTC ERUPTION HAD BEEN
ESTIMATED AT FL320 BUT WAS OVERRUN BY THE ADVANCING HIGH LEVEL
CLOUDS FROM THE EAST. 
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TRAJECTORY: ANY ASH AT FL320 WOULD MOVE TOWARDS THE NORTHWEST AT 15
TO 20 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 12/1730.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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TURK - NOAA/NESDIS/SAB
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