FVXX21 KWBC 301230
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1230 UTC 30 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-506         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. GEOPHYSICAL INSTITUTE. SIX HOUR FORECAST FROM THE
30/0600 UTC AVIATION MODEL.
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS.   
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 30/1145 UTC SHOWS
LOW AND MID LEVEL CLOUDS OVER THE AREA MAKING DETECTION OF ASH
DIFFICULT. THE MOST RECENT REPORT FROM GEOPHYSICAL INSTITUTE
MENTIONS SEVERAL SMALL EXPLOSIONS OF ASH DURING THE PAST 24
HOURS. NO HEIGHT ASSIGNMENT WAS GIVEN.
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TRAJECTORY: ANY ASH BETWEEN THE SUMMIT AND FL250 WOULD MOVE TO
THE WEST AT ABOUT 20 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 30/1830 UTC.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC
ASH ADVISORY STATEMENTS 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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