FVXX20 KWBC 252000
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2000 UTC 25 NOV 1999 BY THE WASHINGTON VAAC 
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GUAGUA PICHINCHA 99-112      ECUADOR 0.17S 78.60W 
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BACKGROUND:    GUAGUA PICHINCHA ECUADOR (1502-02)
               SUMMIT HEIGHT    15695 FT (4784 M)  
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SOURCES OF INFORMATION: GOES-8 VISIBLE AND MULTISPECTRAL IMAGERY
REPORT FROM THE INSTITUTO GEOFISICO AND SURFACE OBSERVATIONS FROM
QUITO.
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ERUPTION DETAILS: AN ERUPTION WAS REPORTED AT 25/1030 UTC.
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DETAILS OF ASH CLOUD: THE ASH FROM THE EARLIER ERUPTION IS NO LONGER
DETECTED IN SATELLITE IMAGERY THROUGH 1915UTC. THE PLUME THAT WAS
MOVING TOWARDS THE SOUTH AND THE EAST HAS DISSIPATED. THE SURFACE
OBSERVATIONS OUT OF QUITO ARE REPORTING ASH AS A RESTRICTION TO
VISIBILITY HOWEVER IT IS NOT CURRENTLY FALLING BUT IS BEING BLOWN
ABOUT AT THE SURFACE BY THE WIND. THE INSTITUTO REPORTS THAT THE
VOLCANO IS VENTING GASES BUT NO ASH AT THIS TIME.       
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TRAJECTORY: ANY ASH BELOW FL250 WILL MOVE TO THE EAST 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 AND VAFTAD.
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THIS WILL BE THE LAST STATEMENT ON THIS ERUPTION. WE WILL CONTINUE
TO MONITOR THE AREA AND WILL GO BACK INTO A WATCH VAAS AT 26/1700 
UTC UNLESS CONDITIONS CHANGE.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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