FVXX21 KWBC 120630
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0630 UTC 12 FEB 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-179         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 MULTISPECTRAL AND INFRARED IMAGERY. 
GEOPHYSICAL INSTITUTE IN QUITO. WIND FORECAST FROM THE 12/0000 UTC
AVIATION MODEL. 
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ERUPTION DETAILS: CONTINUOUS ERUPTION OF ASH AND STEAM
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DETAILS OF ASH: DUE TO CLOUDS AND NIGHT TIME CONDITIONS NO ASH
IS CURRENTLY SEEN IN SATELLITE IMAGERY THROUGH 0545 UTC. THE EVENING
INSTITUTE REPORT STATED THAT THE VOLCANO REMAINS SEISMICLY ACTIVE
AND IS VENTING AN ALMOST CONTINUOUS STREAM OF STEAM AND ASH. THE
LAST FEW VISIBLE SATELLITE IMAGES OF THE DAY DID SHOW HINTS OF A
PLUME FROM THE SUMMIT EXTENDING TO THE WEST. BASED ON THIS MOVEMENT
AND THE FORECAST WINDS THERE IS NO REASON TO CHANGE CURRENT THINKING
THAT THE HEIGHT OF THE ASH IS AROUND FL220. 
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TRAJECTORY: ASH AROUND FL220 WOULD MOVE TOWARD THE WEST TO WEST-SOUTHWEST AT 20 TO 30 KNOTS.
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OUTLOOK:  SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED AT 12/1230 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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