FVXX23 KWBC 172220
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2220 UTC 17 JAN 2000 BY THE WASHINGTON VAAC
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SAN CRISTOBAL 00-005 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 OBSERVATION. NICARAGUAN GEOPHYSICAL INSTITUTE. 9 HOUR FORECAST FROM THE 17/1200 UTC NGM MODEL.
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ERUPTION DETAILS: POSSIBLE SMALL ERUPTION AT 17/2000 UTC.
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DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 17/2045..CURRENT SURFACE OBSERVATIONS AND REPORTS FROM THE GEOPHYSICAL INSTITUTE ALL INDICATE AN ERUPTION OF THE SAN CRISTOBAL VOLCANO. THE 17/2045 UTC SATELLITE IMAGE SHOWS A FAINT PLUME STRETCHING 72KM (39 NMI) TO THE SOUTHWEST AWAY FROM THE SUMMIT. THE PLUME IS 21KM (11NMI) WIDE AND EXTENDS TO THE POINT: 1218N 8732W. CURRENT REPORTS INDICATE THE PLUME IS AT SUMMIT HEIGHT OR FL060.
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TRAJECTORY: ASH AT FL060 WILL MOVE TOWARD THE SOUTHWEST AT 20KTS.
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OUTLOOK: SEE LATEST SIGMETS.
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NEXT STATEMENT WILL BE ISSUED BY 18/0430 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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WALTER
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NNNN"Click For Full Sized Attached Graphic"

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• Ash Graphic