FVXX21 KWBC 150945
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0945 UTC 15 JAN 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-058        ECUADOR 0128S 7826W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY.
UPPER AIR DATA AND REPORTS FROM THE GEOPHYSICAL INSTITUTE...14/1800
UTC AVIATION MODEL FORECAST SOUNDING DATA...
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ERUPTION DETAILS: ALMOST CONTINUOUS EMISSIONS OF ASH AND STEAM WITH
OCCASIONAL EXPLOSIONS...
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 15/0845 UTC INDICATES ASH
AND STEAM CONTINUING BLAST OUT THE TUNGURAHUA VOLCANO. THE LATEST
TRENDS SHOW MOST OF THE ASH AND STEAM MOVING TO THE NORTHWEST OF THE
SUMMIT. THE MOVEMENT SEEN TO THE SOUTHWEST EARLIER IS NO LONGER
NOTED AND THAT EARLIER AREA OF ASH AND STEAM IS NO LONGER
DETECTABLE. FOR NOW THE EMISSIONS APPEAR TO BE CONSTANT WITH
OCCASIONALLY A STRONGER RELEASE OF ASH NOTED. THIS SUGGESTS SOME
OCCASIONAL EXPLOSIONS WHICH WOULD BE CAPABLE OF SENDING ASH UP TO A
HIGHER ALTITUDE THAN WHAT MAY BE SEEN ON AVERAGE. SO FOR NOW THE ASH
IS STILL ESTIMATED TO BE AS HIGH AS FL300.
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AT 15/0845 UTC THE ASH AND STEAM CLOUD SEEN IN SATELLITE IMAGERY
EXTENDING AN IMPRESSIVE 136 KM (73 NMI) TO THE NORTHWEST OF THE
SUMMIT TO THE POINT 0018S7851W. THE CLOUD IS 69 KM (37 NMI) WIDE. OF
MORE SERIOUS NOTE IS THAT THE NORTHWESTERN EDGE OF THE ASH AND STEAM
IS NOW LESS THAN 25 KM (13 NMI) TO THE SOUTH-SOUTHWEST OF QUITO
WHICH IS THE CAPITAL OF ECUADOR.
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TRAJECTORY: ASH AND STEAM TO FL300 IS SEEN MOVING TO THE NORTHWEST
AT 10 TO 20 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 15/1530 UTC.
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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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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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ORRISON
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NNNN
"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"