FVXX22 KWBC 010332
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0110 UTC 01 JAN 2000 BY THE WASHINGTON VAAC 
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SAN CRISTOBAL 00-001 NICARAGUA 12.7N 87.0W 
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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
SATELLITE IMAGERY...0000 UTC METAR REPORT FROM CHINANDEGA
NICARAGUA...12 HOUR WIND FORECAST FROM 31/1200 UTC AVIATION MODEL
DATA
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ERUPTION DETAILS: STEADY EMISSION OF ASH.
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DETAILS OF ASH CLOUD: A 01/0000 UTC METAR REPORT FROM CHINANDEGA
NICARAGUA INDICATED STRONG VOLCANIC ACTIVITY AT SAN CRISTOBAL
VOLCANO.  THE LAST VISIBLE GOES 8 SATELLITE IMAGES INDICATED A
NARROW PLUME EXTENDING 70 KM (38 NMI) TO THE SOUTHWEST OF THE SUMMIT
TO 12.5N/87.6W.  THE PLUME WAS ONLY 13 KM (7 NMI) WIDE.  INFRARED
AND MULTISPECTRAL IMAGERY THROUGH 01/0015 DID NOT REVEAL ANY ASH
PLUME.  THIS IS LIKELY DUE TO THE LOW LEVEL NATURE OF THE PLUME
WHICH IS ESTIMATED TO BE AT FL080. A PLUME IS PRESUMED TO EXIST AT
THIS TIME BUT THE LOW ASH TOPS PREVENT DETECTION IN INFRARED AND
MULTISPECTRAL IMAGERY.
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TRAJECTORY: TOWARDS THE SOUTHWEST AT 10 TO 15 KNOTS.
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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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OUTLOOK:  SEE LATEST SIGMETS.
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EFFECTIVE JANUARY 3 2000 AT 0000 UTC... ALL REFERENCES TO LATITUDE
AND LONGITUDE IN VOLCANIC ASH ADVISORY STATEMENTS WILL BE IN DEGREES
AND MINUTES OF A DEGREE. EXAMPLE: 16.70N 62.20W  WILL BE  1642N6212W
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THE NEXT STATEMENT WILL BE ISSUED AROUND 01/0700 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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TURK/SAB/NOAA/NESDIS
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NNNN"Attached Graphic Map Depicting Ash" 

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