FVXX21 KWBC 082150
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VOLCANIC ASH ADVISORY
ISSUED 2150 UTC 08 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-093     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...QUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMET...12 UTC AVN
MODEL SOUNDING DATA.
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ERUPTION DETAILS: CONTINUOUS ERUPTION WITH A MORE INTENSE RELEASE OF
ASH AND STEAM. A POSSIBLE EXPLOSION OCCURRED AT 08/1947 UTC.
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DETAILS OF ASH: THE LATEST QUAYAQUIL MWO SIGMET INDICATES THAT
TUNGURAHUA IS ERUPTING WITH MORE INTENSITY. ASH AND STEAM IS NOW
REPORTED TO BE AT FL330. A MULTISPECTRAL IMAGE AT 2115 UTC SHOWS ASH
THAT EXTENDS 69 KM (37 NMI) TO THE EAST OF THE SUMMIT AND IS 13 KM
(7 NMI) WIDE. THE ASH IS ORIENTED IN A NARROW PLUME THAT
EXTENDS BACK TO THE SUMMIT.
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TRAJECTORY: ASH AND STEAM TO FL330 MOVING TO THE EAST AT 10 TO 20
KNOTS. 12 UTC AVN MODEL SOUNDING DATA AND SATELLITE IMAGERY CONFIRM
THIS.
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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 09/0400 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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ORRISON/BROWN
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NNNN
"Attached Graphic Map Depicting Ash" 

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