FVXX21 KWBC 211300
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1300 UTC 21 MAY 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-595         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. GEOPHYSICAL INSTITUTE REPORT AND
AVIATION MODEL WINDS FORECAST.
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ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND ASH EMISSIONS.   
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 21/1215 UTC SHOWS
THICK WEATHER CLOUDS OVER THE REGION MAKING IT DIFFICULT TO
DETECT ANY ASH. THE GEOPHYSICAL INSTITUTE REPORTS CONTINUED
SEISMIC ACTIVITY WITH PROBABLE GASES AND LIGHT ASH EMISSIONS
WITH NO ESTIMATED HEIGHT ASSIGNMENT AT THIS TIME.   
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TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL250 SHOULD MOVE TO
THE WEST SOUTHWEST AROUND 20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 21/1900 UTC.
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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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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.  
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