FVXX21 KWBC 230730
VOLCANIC ASH ADVISORY  
ISSUED 0730 UTC 23 JUN 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-731         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. WIND FORECAST FROM AVIATION MODEL.  GEOPHYSICAL
INSTITUTE REPORT. 
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ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH
EMISSIONS.  
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 23/0645 UTC SHOWS
CLOUDS OVER THE AREA MAKING ASH DETECTION DIFFICULT. THE
GEOPHYSICAL INSTITUTE LAST REPORTED ASH AT 23/0241 UTC.  THIS
ASH WAS REPORTED OVER THE VOLCANO NEAR SUMMIT LEVEL MOVING TO
THE WEST.  
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TRAJECTORY: ANY ASH THAT MAY EXIST NEAR SUMMIT LEVEL WOULD
MOVE TO THE WEST AT 15 TO 20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 23/1330 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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CLARK
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