FVXX21 KWBC 252000
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 2000 UTC 25 OCTOBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-030       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..GEOPHYSICAL INSTITUTE AND UPPER AIR SOUNDING NEAR THE
VOLCANO.  
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ERUPTION DETAILS: CONTINUOUS VENTING OF ASH AND STEAM.
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DETAILS OF ASH: GOES-8 SATELLITE IMAGERY THROUGH 25/1915 UTC SHOWS A
VERY THIN PLUME EXTENDING SOUTHWEST AWAY FROM THE VOLCANO.  THIS
PLUME IS ONE OF SEVERAL THAT HAVE BEEN VISIBLE OFF AND ON DURING THE
AFTERNOON HOURS.  THE CURRENT PLUME EXTENDS SOUTH WEST FROM THE
SUMMIT 20 KM TO THE POINT 1.6S 78.6W AND IS LESS THAN 10KM WIDE.

THE GUAYAQUIL MWO CONTINUES TO REPORT ASH FROM THE VOLCANO TO FL200
IN ADDITION..THE GEOPHYSICAL INSTITUTE REPORTS CONTINUOUS GAS
EMISSIONS FROM THE VOLCANO.
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TRAJECTORY: UPPER AIR DATA SUGGESTS ANY ASH BELOW FL200 WOULD MOVE
TO THE SOUTHWEST AROUND 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.
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THE NEXT STATEMENT WILL BE ISSUED AROUND 26/0200 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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