FVXX22 KWBC 221345
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1345 UTC 22 FEB 2000 BY THE WASHINGTON VAAC
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SAN CRISTOBAL  00-037        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 VISIBLE IMAGERY. 22/0000 UTC AVIATION
MODEL WINDS VALID 22/1200 UTC. INETER NICARAGUA. 
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ERUPTION DETAILS: LOW LEVEL ASH AND GAS EMISSION...BEGIN TIME
UNKNOWN.
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DETAILS OF ASH CLOUD: GOES-8 VISIBLE IMAGERY THROUGH 1315 UTC SHOWS
A PLUME EXTENDING SOUTHWEST FROM SAN CRISTOBAL OUT OVER THE PACIFIC.
THIS PLUME IS EXTENDING 70 KM (38 NMI) AT A HEADING OF 231 DEGREES.
THE PLUME IS 33 KM (18 NMI) AT ITS WIDEST POINT. CURRENT SPEED IS
ABOUT 10 KNOTS. GROUND OBSERVERS ESTIMATE THE HEIGHT AT FL070 AND
THIS IS CONFIRMED BY CURRENT MODEL WIND ANALYSIS.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR BELOW FL100 TO
MOVE SOUTHWEST AT 10 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 22/2000 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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HUGHES/CLARK-NOAA/NESDIS/SAB
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NNNN"Attached Graphic Map Depicting Ash" 

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