FVXX23 KWBC 181003
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1003 UTC 18 JAN 2000 BY THE WASHINGTON VAAC 
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SAN CRISTOBAL 00-007   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 18/0000 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 SHOWED
A PLUME EMANATING FROM SAN CRISTOBAL.  THIS PLUME HAD BEEN ESTIMATED
AT FL060 OR ROUGHLY SUMMIT LEVEL.  SINCE THEN AND THROUGH 18/0915
UTC NO PLUME HAS BEEN DETECTED HOWEVER SUCH LOW LEVEL PLUMES ARE
USUALLY ONLY DETECTABLE IN VISIBLE IMAGERY SO 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 18/1600 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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