FVXX23 KWBC 220530
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VOLCANIC ASH ADVISORY STATEMENT-CORRECTION 
ISSUED 0530 UTC 22 NOV 1999 BY THE WASHINGTON VAAC
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MASAYA 99-002      NICARAGUA 11.98N 86.16W 
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BACKGROUND:    MASAYA NICARAGUA (1401-10)
               SUMMIT HEIGHT 2083 FT (635 M)
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SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL SATELLITE
IMAGERY.  21/1800 UTC AVIATION MODEL UPPER WIND DATA. 
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ERUPTION DETAILS: POSSIBLE ASH AND STEAM EMISSIONS BEGINNING BETWEEN
1900 AND 2000 UTC...POSSIBLE EXPLOSION AROUND 2200 UTC.
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DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 22/0445 UTC SHOWS
LOW AND MID LEVEL CLOUDS BLANKETING THE AREA OVER THE VOLCANO MAKING
DETECTION OF ASH IMPOSSIBLE.
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TRAJECTORY: ANY REMAINING ASH AT FL025 WOULD MOVE TOWARD THE 
WEST-SOUTHWEST AT 5KT.
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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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OUTLOOK: SEE SIGMETS.
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THIS WILL BE THE LAST MESSAGE FOR THIS EVENT.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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WALTER/SAB/NOAA/NESDIS
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NNNN