FVXX21 KWBC 281040
VOLCANIC ASH ADVISORY  
ISSUED 1040 UTC 28 JUN 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-755         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 INFRARED AND MULTISPECTRAL
IMAGERY. THE GEOPHYSICAL INSTITUTE IN QUITO.  12 HOUR FORECAST
WINDS FROM THE 00 UTC AVIATION MODEL.
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS.  
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DETAILS OF ASH: NO ASH PLUME IS CURRENTLY VISIBLE IN SATELLITE
IMAGERY THROUGH 28/0945 UTC.  SCATTERED CLOUDS OVER THE SUMMIT
ARE MAKING ASH DETECTION DIFFICULT. THE LATEST INFORMATION
FROM THE GEOPHYSICAL INSTITUTE AT 0327 UTC PLACED ASH OVER THE
VOLCANO MOVING WEST. 
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TRAJECTORY: ANY ASH UP TO FL270 WOULD MOVE WESTWARD AT 10 TO
15 KNOTS. 
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 28/1700 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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