FVXX21 KWBC 160250
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0250 UTC 16 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-447        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 16/0215 UTC DOES NOT
SHOW ANY DEFINITE AREAS OF ASH. SOME SHOWER AND THUNDERSTORM
ACTIVITY IN THE REGION IS COMPLICATING THE DETECTION OF ASH.
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 10 TO 20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 16/0900 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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