FVXX22 KWBC 210900
VOLCANIC ASH ADVISORY
ISSUED 0900 UTC 21 SEP 2000 BY THE WASHINGTON VAAC
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TUNGURAHUA 00-1091        ECUADOR 0128S 7826W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND
MULTISPECTRAL IMAGERY. AVIATION MODEL WIND FORECAST. SEPTEMBER
20 REPORT FROM GEOPHYSICAL INSTITUTE.
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ERUPTION DETAILS: ASH EMISSION AT ABOUT 20/1400 UTC. 
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DETAILS OF ASH CLOUD: NO ASH IS SEEN IN SATELLITE IMAGERY
THROUGH 21/0815 UTC POSSIBLY DUE TO THE WEATHER CLOUDS IN THE
AREA.  AT 20/1445 UTC ASH UP TO ABOUT FL250 WAS OBSERVED IN
IMAGERY THROUGH A BREAK IN THE WEATHER CLOUDS.   
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TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL250 WOULD MOVE TO THE
WEST OR SOUTHWEST AT LESS THAN 10 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 21/1500 UTC.
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REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES 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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STREETT
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