FVXX23 KWBC 182020    
VOLCANIC ASH ADVISORY STATEMENT   
ISSUED 2020 UTC 18 FEB 2000 BY THE WASHINGTON VAAC 
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SAN CRISTOBAL 00-028   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...CHINANDEGA SURFACE REPORTS...
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ERUPTION DETAILS: POSSIBLE ASH VENTING...
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DETAILS OF ASH CLOUD: THE AIRPORT AT CHINANDEGA LOCATED TO THE WEST
OF SAN CRISTOBAL HAS REPORTED ASH AS OF 1900 UTC SUGGESTING POSSIBLE
ERUPTIVE ACTIVITY. HOWEVER THE SATELLITE IMAGERY THROUGH 1945 UTC
DOES NOT INDICATE ANY SIGN OF ASH. SO THEREFORE THE ASH IS BELIEVED
TO BE NEAR-SUMMIT AND VERY THIN. ASH IS ESTIMATED TO BE REACHING AS
HIGH AS FL060.
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TRAJECTORY: ANY ASH UP TO FL060 WOULD MOVE WEST-SOUTHWEST AT 10 TO
20 KNOTS.
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OUTLOOK:  SEE LATEST SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 19/0230 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  
http://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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ORRISON
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