FVXX23 KWBC 180400
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0400 UTC 18 JAN 2000 BY THE WASHINGTON VAAC 
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SAN CRISTOBAL 00-006   NICARAGUA   1242N 8700W 
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BACKGROUND:    SAN CRISTOBAL NICARAGUA (1404-02)
               SUMMIT HEIGHT 5725 FT (1745 M)
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SOURCES OF INFORMATION:  GOES-8 VISIBLE..INFRARED AND MULTISPECTRAL
IMAGERY.   12 HOUR FORECAST FROM THE 17/1800 UTC AVN MODEL.
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ERUPTION DETAILS: POSSIBLE SMALL ERUPTION AT 17/2000 UTC.
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DETAILS OF ASH CLOUD: THE FINAL VISIBLE IMAGE AT 17/2345 UTC
CONTINUED TO SHOW A PLUME EMANATING FROM SAN CRISTOBAL.  THIS
PLUME WAS ESTIMATED AT FL060 OR ROUGHLY SUMMIT LEVEL.  NO PLUME
WAS DETECTED INFRARED AND MULTISPECTRAL IMAGERY THROUGH 18/0315 UTC.
HOWEVER SUCH LOW LEVEL PLUMES ARE USUALLY NOT DETECTABLE IN INFRARED
AND MULTISPECTRAL IMAGERY AND CAUTION IS URGED.  
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TRAJECTORY: ASH AT FL060 WOULD MOVE TOWARD THE SOUTHWEST AT 20 TO
30 KTS.
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OUTLOOK:  SEE LATEST SIGMETS.
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NEXT STATEMENT WILL BE ISSUED BY 18/1000 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  
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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TURK
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