FVXX21 KWBC 251700
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1700 UTC 25 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-166         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 AND MULTISPECTRAL IMAGERY. 
25/0000 UTC AVIATION MODEL WIND FORECAST VALID AT 25/1200 UTC
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ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSIONS.
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DETAILS OF ASH: MULTISPECTRAL AND VISIBLE IMAGERY THROUGH 1615 UTC
INDICATES A PLUME OF ASH ESTIMATED AT FL250 MOVING TO THE NORTH. THE
LEADING EDGE OF THE ASH PLUME IS AT 0.2N 77.2W WHICH IS 190 KM (100
NMI) FROM THE SUMMIT. ASH AT A HIGHER ALTITUDE FROM FL250 TO FL350
IS MOVING TO THE EAST OF THE SUMMIT. THE LEADING EDGE OF THE PLUME
IS AT 1.4S 77.5W WHICH IS 96 KM (52 NMI) FROM THE VOLCANO.
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TRAJECTORY: ASH UP TO FL250 WILL MOVE TO THE NORTH AT 10 KTS. ASH
FROM FL250 TO FL350 WILL MOVE TOWARDS THE EAST AT 15 KTS.
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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 25/2300 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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KARST
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NNNN"Attached Graphic Map Depicting Ash" 

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