FVXX21 KWBC 291300
VOLCANIC ASH ADVISORY
ISSUED 1250 UTC 29 JUL 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-885         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. SIX HOUR WIND FORECAST FROM THE
AVIATION MODEL.  REPORT FROM THE GEOPHYSICAL INSTITUTE IN
QUITO.
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ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM.
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DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY
THROUGH 29/1215 UTC DUE TO THE LOW WEATHER CLOUDS COVERING THE
AREA.  ON JULY 28 THE INSTITUTE OBSERVED WESTWARD MOVING ASH
AT ABOUT FL170.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT IF THERE IS ANY
ASH NEAR THE VOLCANO SUMMIT IT WOULD MOVE TOWARD THE WEST AT
ABOUT 15 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 29/1900 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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