FVXX24 KWBC 182100
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2100 UTC 18 JAN 2000 BY THE WASHINGTON VAAC 
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MASAYA 00-002         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.
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ERUPTION DETAILS: LOW LEVEL CONTINUOUS ASH EMISSION.
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DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 2015 UTC STILL SHOWS A
VERY FAINT LOW LEVEL PLUME OF ASH AND PROBABLY GAS EMANATING FROM
MASAYA. STRONG WINDS OFF THE COAST IS ALSO PICKING UP SOME DUST AS
SEEN ALONG THE WESTERN COASTS OF THE COUNTRIES SURROUNDING
NICARAGUA. THUS THE PLUME IS MOSTLY DUST AND GAS. THIS IS EVIDENT IN
THE LACK OF AN ASH SIGNATURE IN ALL THREE MULTISPECTRAL CHANNELS.
HOWEVER THERE IS STILL A DANGER OF ASH MIXING INTO THE ATMOSPHERE SO
AVIATION HAZARD IN THE REGION IS STILL A CONCERN. IF WE SEE ANY
INCREASED ACTIVITY WE WILL ISSUE A WARNING STATEMENT. 

TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH BELOW FL050 TO MOVE
SOUTHWEST AT 15 TO 20 KNOTS.
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OUTLOOK:  SEE LATEST SIGMETS.
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THIS WILL BE THE LAST MESSAGE ISSUED FOR THIS EVENT.
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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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HUGHES/CLARK NOAA/NESDIS/SAB
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