FVXX21 KWBC 291915
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1915 UTC 29 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-184       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 AND
INFRARED IMAGERY...REPORT FROM THE GEOFISICO INSTITUTO...12 UTC
AVIATION MODEL WIND FORECAST
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ERUPTION DETAILS: CONTINUOUS STEAM EMISSIONS AND SOME ASH EMISSIONS
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DETAILS OF ASH: SATELLITE IMAGERY THRU 1845 UTC SHOWS AN ASH PLUME
MOVING WESTWARD FROM THE VOLCANO. THE ASH IS ESTIMATED AT FL300. THE
LEADING EDGE OF THE PLUME IS AT 1.5S 79.2W WHICH IS 107 KM (58 NMI )
FROM THE SUMMIT. THE ASH IS 20 KM (10 NMI) WIDE.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH AT ABOUT FL300
WOULD MOVE TO THE WEST AT LESS THAN 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 30/0115 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN"Attached Graphic Map Depicting Ash" 

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