FVXX21 KWBC 172030
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2030 UTC 17 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-454        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...NATIONAL WEATHER SERVICE MODEL WINDS
FORECAST
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ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS.
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DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY
THROUGH 1945 UTC BECAUSE WEATHER CLOUDS COVER THE AREA.  ASH
WAS MOST RECENTLY OBSERVED IN SATELLITE IMAGERY AT ABOUT
17/0215 UTC AND THIS ASH HAD AN ESTIMATED HEIGHT OF FL220.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH THAT MIGHT
BE PRESENT BETWEEN THE SUMMIT AND FL220 WILL MOVE TO THE WEST
AT ABOUT 15 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 18/0230 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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