FVXX22 KWBC 240330
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0330 UTC 24 FEB 2000 BY THE WASHINGTON VAAC
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SAN CRISTOBAL  00-043        NICARAGUA  1242N 8700W 
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BACKGROUND:    SAN CRISTOBAL NICARAGUA (1404-02)
               SUMMIT HEIGHT 5725 FT (1745M)
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SOURCES OF INFORMATION: GOES-8 MULTISPECTRAL AND
INFRARED IMAGERY...AVIATION MODEL UPPER-AIR SOUNDING DATA
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ERUPTION DETAILS: CONTINUOUS LOW LEVEL ASH AND GAS EMISSION.
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DETAILS OF ASH CLOUD: GOES-8 MULTISPECTRAL AND INFRARED
IMAGERY THROUGH 24/0145 UTC DOES NOT INDICATE ANY SIGNS OF ASH
LEAVING THE SUMMIT. HOWEVER VISIBLE IMAGERY THROUGHOUT THE DAY
SHOWED A CONTINUOUS PLUME OF ASH MOVING OFF TO THE WEST. THUS
THE ASH IS LOW-LEVEL IN NATURE AND WILL BE VERY DIFFICULT TO
DETECT OVERNIGHT. THE ASH IS BELIEVED TO BE NEAR-SUMMIT WITH A
HEIGHT PERHAPS AS HIGH AS FL080.
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TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL080 SHOULD MOVE TO
THE WEST-SOUTHWEST AT 15 TO 20 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 24/0945 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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