FVXX21 KWBC 232005
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2005 UTC 23 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-157         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.  THE GEOFISICO INSTITUTO.  23/1200 UTC AVIATION MODEL WIND
FORECAST.
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ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSIONS...AND OCCASIONAL
EXPLOSIONS AS REPORTED BY THE GEOFISICO INSTITUTO.
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DETAILS OF ASH: AT 1915 UTC ASH EXTENDS 114 KM (62 NMI) TO THE EAST
NORTHEAST OF THE SUMMIT TO THE POINT 1.2S 77.4W. THE PLUME IS
APPROXIMATELY 27 KM (15 NMI) WIDE. UPPER AIR PATTERNS SUGGEST THAT
THE ASH IS BELOW FL300. OVER THE PAST 2 HOURS MULTISPECTRAL 
SATELLITE IMAGERY SUGGESTS THAT THE ASH PLUME HAS BECOME MORE
DIFFUSE.
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TRAJECTORY: ASH IS MOVING TOWARD THE EAST NORTHEAST AT LESS THAN 10
KTS. IF FUTURE EMISSIONS PRODUCE ASH BETWEEN FL330 AND FL400 IT IS
ANTICIPATED THAT THIS ASH WOULD MOVE TO THE WEST AT 15 TO 40 KNOTS
BASED ON 1200 UTC MODEL DATA. 
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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 24/0200 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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RUMINSKI
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NNNN"Attached Graphic Map Depicting Ash" 

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