FVXX21 KWBC 251400
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1400 UTC 25 OCTOBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-029       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 25/1345 UTC SHOWS A
VERY THIN PLUME EXTENDING SOUTHWEST AWAY FROM THE VOLCANO.  THE PLUM
EXTENDS 61KM TO THE POINT 1.9S 78.8W AND IS LESS THAN 10KM WIDE.
THE GUAYAQUIL MWO CONTINUES TO REPORT ASH FROM THE VOLCANO TO FL220
IN ADDITION..THE GEOPHYSICAL INSTITUTE REPORTS CONTINUOUS GAS
EMISSIONS FROM THE VOLCANO.
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TRAJECTORY: UPPER AIR DATA SUGGESTS ANY ASH BELOW FL220 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 25/2000 UTC.
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WALTER/SAB/NOAA/NESDIS
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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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