FVXX21 KWBC 130100
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0100 UTC 13 MAY 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-560         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. WINDS FORECAST FROM THE AVN MODEL.
GEOPHYSICAL INSTITUTE REPORT.
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ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH
EMISSIONS.   
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DETAILS OF ASH: IN THE LAST VISIBLE IMAGERY OF THE DAY AT
12/2215Z A VERY NARROW FAINT PLUME COULD BE SEEN MOVING WEST
NORTHWEST (288 DEGREES) FROM THE SUMMIT AND EXTENDED OUT
AROUND 30 KM (16 NMI) AND WAS ROUGHLY 5 KM (3 NMI) WIDE. IN
CURRENT INFRARED AND MULTISPECTRAL IMAGERY THROUGH 13/0015Z
THERE WAS NO DETECTION OF THE PLUME. THE LAST GEOPHYSICAL
INSTITUTE REPORT ESTIMATED THE PLUME HEIGHT AT AROUND FL200.
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TRAJECTORY: ANY ASH THAT MAY EXIST FROM THE SUMMIT TO FL200
WOULD MOVE TOWARD THE WEST NORTHWEST AROUND 15 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 13/0700 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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