FVXX21 KWBC 092100
VOLCANIC ASH ADVISORY STATEMENT-CORRECTION TIME OF NEXT VAAS
ISSUED 2100 UTC 09 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-422        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...GEOPHYSICAL INSTITUTE.
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS.
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 2015 UTC SHOWS NO
SIGNS OF ASH CLOUDS. HOWEVER THE VOLCANO WAS VENTING ASH
EARLIER IN THE DAY AT 1030 UTC. AT THIS TIME THERE IS AN
INCREASE IN CLOUDINESS FROM THE EAST WHICH WILL BE OBSCURING
THE SUMMIT THIS EVENING. THE LAST REPORTS FROM THE GEOPHYSICAL
INSTITUTE INDICATE THAT SEISMIC ACTIVITY REMAINS STRONG AND
THAT FURTHER ERUPTIONS MAY OCCUR AT ANY TIME. ASH WAS
ESTIMATED AS HIGH AS FL320 LAST NIGHT BUT THE GENERAL TENDENCY
SHOULD BE FOR NEW ASH TO BE CONFINED MUCH CLOSER TO THE
SUMMIT.
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TRAJECTORY: ANY ASH THAT MAY EXIST BETWEEN THE SUMMIT AND
FL250 IS EXPECTED TO MOVE TO THE SOUTHWEST AT 10 TO 20 KNOTS.
ANY ASH FROM FL250 TO FL320 WOULD LIKELY MOVE SOUTH AT 10 TO
20 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 10/0300 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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