FVXX23 KWBC 212125
VOLCANIC ASH ADVISORY STATEMENT-CORRECTION TIME OF NEXT STATEMENT
ISSUED 2125 UTC 21 JAN 2000 BY THE WASHINGTON VAAC 
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MASAYA 00-004         NICARAGUA  1159N 8610W
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BACKGROUND:    MASAYA NICARAGUA (1404-10)
               SUMMIT HEIGHT 2083 FT (635 M)
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SOURCES OF INFORMATION:  GOES-8 VISIBLE..INFRARED...AND
MULTISPECTRAL IMAGERY...1200 UTC AVIATION MODEL FORECAST SOUNDING
DATA...GEOPHYSICAL LAB IN MANAGUA...
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ERUPTION DETAILS: CONTINUOUS LIGHT EMISSIONS OF GASES AND POSSIBLE
ASH...
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DETAILS OF ASH CLOUD: GOES-8 SATELLITE IMAGERY THROUGH 2045 UTC
SHOWS A VERY THIN WISPY PLUME OF GASES AND POSSIBLY ASH IS LEAVING
THE MASAYA SUMMIT. THE PLUME IS NOTED TO BE LOW-LEVEL AND IS
ESTIMATED TO BE AS HIGH AS ONLY FL030. THE PLUME IS APPROXIMATELY
BOUNDED BY 1159N8610W 1157N8642W 1128N8734W 1012N8830W 1132N8656W.  
PLUME EXTENDS ABOUT 320 KM (1020 NMI) FROM THE SUMMIT AND UP TO 35
KM (20 NMI) WIDE.


TRAJECTORY: SOUTHWEST AT 15 KNOTS...
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OUTLOOK:  SEE LATEST SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 22/0330 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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NOAA/NESDIS/SAB
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NNNN
"Attached Graphic Map Depicting Ash" 

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