FVXX21 KWBC 280145
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0145 UTC 28 FEB 2000 BY THE WASHINGTON VAAC
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TUNGURAHUA 00-248 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 FORECAST WINDS. AVIATION MODEL WINDS
FORECAST.
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ERUPTION DETAILS: NEARLY CONTINUOUS EMISSION OF GASES AND ASH.
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DETAILS OF ASH: CLOUDS BROKE LATE IN THE DAY OVER AND NEAR THE
SUMMIT. THE LAST VISIBLE SATELLITE IMAGES SHOWED A PLUME EXTENDING
FROM THE SUMMIT TO 0123S7841W AT 27/2215 UTC. THE PLUME WAS 7 KM (4
NMI) WIDE AND ESTIMATED BETWEEN FL200 AND FL250. INFRARED AND
MULTISPECTRAL IMAGERY THROUGH 27/2345 UTC DID NOT REVEAL AN ASH
PLUME THROUGH SCATTERED MID AND HIGH LEVEL CLOUDS.
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TRAJECTORY: TOWARDS THE WEST NORTHWEST AT 15 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 28/0630 UTC.
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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TURK
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NNNN
"Attached Graphic Map Depicting Ash"
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