FVXX21 KWBC 242040
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2040 UTC 24 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-162         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.  24/1200 UTC AVIATION MODEL WIND FORECAST
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ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSIONS.
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DETAILS OF ASH: AT 1945 UTC SATELLITE IMAGERY SHOWS AN ASH PLUME
EXTENDING FROM THE VOLCANO TOWARD THE EAST. THIS ASH IS BOUNDED BY
1.4S 78.5W TO 1.3S 76.2W TO 1.6S 76.2W TO 1.7S 78.2W TO 1.4S 78.5W
AND ESTIMATED TO BE BELOW FL300.  IN ADDITION THERE IS A POSSIBLE
AREA OF FAINT ASH COVERING MUCH OF NORTHEASTERN ECUADOR AND EVEN
CROSSING THE BORDER INTO COLOMBIA.  THIS POSSIBLE ASH IS BOUNDED BY
1.4S 76.3W TO 0.5N 74.9W TO 1.0N 76.2W TO 1.3S 77.6W TO 1.4S 76.3W. 
THIS ASH WOULD BE LOWER AND IS BELIEVED TO BE BELOW FL260. 
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TRAJECTORY: ASH UP TO FL300 IS MOVING TOWARD THE EAST AT 10 TO 15
KNOTS. POSSIBLE ASH BELOW FL260 MIGHT BE MOVING TO THE NORTHEAST AT
10 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 25/0230 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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