FVXX21 KWBC 221930
VOLCANIC ASH ADVISORY  
ISSUED 1930 UTC 22 JUN 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-729         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. 6 HOUR WIND FORECAST FROM THE   
22/1200 UTC AVIATION MODEL.  GEOPHYSICAL INSTITUTE.
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ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH
EMISSIONS.  
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 22/1845 UTC SHOWS AN
EXTENSIVE AREA OF BROKEN CLOUDS OVER THE AREA.  THIS MAKES ASH
DETECTION VERY DIFFICULT.  ASH WAS LAST OBSERVED AT 21/1908
UTC AND WAS REPORTED NEAR THE SUMMIT TO FL230.
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TRAJECTORY: ANY ASH THAT MAY EXIST BETWEEN THE SUMMIT AND
FL230 WOULD MOVE TO THE WEST AROUND 20 TO 30 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 23/0130 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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