FVXX21 KWBC 200800
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0800 UTC 20 OCTOBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-008       ECUADOR 1.47S 78.44W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY
...SIGMET FROM GUAYAQUIL METEOROLOGICAL WATCH OFFICE...U.S. NATIONAL
WEATHER SERVICE AVIATION MODEL WINDS
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ERUPTION DETAILS: INTERMITTENT ASH EMISSIONS THROUGHOUT 
DAY..19 OCTOBER TO FL250. 
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DETAILS OF ASH: THE AREA REMAINS CLOUD COVERED THUS MAKING DETECTION
OF ASH IMPOSSIBLE.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH AT FL250 WOULD
MOVE WEST-SOUTHWEST AT 5-10 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  
http://www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
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OUTLOOK:  SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 20/1400 UTC
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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