FVXX21 KWBC 291315
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1315 UTC 29 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-183       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...00 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 1245 UTC SHOWS A NEW 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 92 KM
(50 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 29/1915 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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