FVXX21 KWBC 201015
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1015 UTC 20 JULY 1999 BY THE WASHINGTON VAAC 
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FUEGO 99-021 GUATEMALA 14.47N 90.88W 
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BACKGROUND:    FUEGO GUATEMALA (1402-09)
               SUMMIT HEIGHT 12345 FT (3763 M)
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SOURCES OF INFORMATION:  GUATEMALA VOLCANO OBSERVATORY...GOES 8
INFRARED AND MULTISPECTRAL IMAGERY...U.S. NATIONAL WEATHER SERVICE
NUMERICAL WEATHER MODELS 

ERUPTION DETAILS:   SMALL EMISSIONS OF ASH. 
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DETAILS OF ASH CLOUD: THE GUATEMALA VOLCANO OBSERVATORY CONTINUES TO
CLASSIFY THE FUEGO VOLCANO AS A CODE ALERT ORANGE.  DENSE
METEOROLOGICAL CLOUD COVER MAKES IT IMPOSSIBLE TO DISCERN ASH.
REPORTS OF ASH LATE YESTERDAY SUGGESTED THAT THE ASH WAS BELOW
FL150. 
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TRAJECTORY: NUMERICAL MODEL DATA SUGGESTS THAT ANY ASH AT ABOUT
FL150 WOULD MOVE TO THE WEST OR WEST SOUTHWEST AT LESS THAN 10
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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THE NEXT STATEMENT WILL BE ISSUED BY 20/1615 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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