FVXX21 KWBC 160850
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0850 UTC 16 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-448        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...REPORTS FROM THE GEOPHYSICAL INSTITUTE...NATIONAL
WEATHER SERVICE FORECAST MODELS.
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ERUPTION DETAILS: NEARLY CONTINUOUS GAS EMISSIONS WITH
OCCASIONAL ASH EMISSIONS.
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 16/0815 UTC DOES NOT
SHOW ANY DEFINITE AREAS OF ASH. STRONG SHOWER AND THUNDERSTORM
ACTIVITY EAST OF THE SUMMIT HAS CAST A RATHER EXTENSIVE DECK
OF CLOUDS OVER THE WHOLE REGION. THE LAST REPORT OF ASH WAS BY
THE GEOPHYSICAL INSTITUTE AT 15/1853 UTC WHEN ASH WAS OBSERVED
TO FL300 OVER THE VOLCANO. 
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TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL300 IS EXPECTED TO
MOVE TO THE WEST AND SOUTHWEST AT 15 TO 20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 16/1500 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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ORRISON
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