FVXX21 KWBC 291610
VOLCANIC ASH ADVISORY
ISSUED 1610 UTC 29 JUL 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-886         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. SIGMET FROM GUAYAQUIL METEOROLOGICAL
WATCH OFFICE.  SIX HOUR WIND FORECAST FROM THE AVIATION MODEL. 
REPORT FROM THE GEOPHYSICAL INSTITUTE IN QUITO.
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ERUPTION DETAILS: EMISSIONS OF ASH AND STEAM.
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DETAILS OF ASH: A SIGMET FROM GUAYAQUIL CITES AIRCRAFT
OBSERVATION OF VOLCANIC ASH OVER THE VOLCANO TO FL250.  NO ASH
CAN BE SEEN IN SATELLITE IMAGERY THROUGH 29/1545 UTC DUE TO
THE LOW WEATHER CLOUDS COVERING THE AREA. 
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ASH BETWEEN THE
SUMMIT AND FL250 WILL MOVE TOWARD THE WEST AT 15 TO 20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 29/2200 UTC.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER 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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