FVXX21 KWBC 211352
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1400 UTC 21 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-148         ECUADOR 1.47S 78.44W 
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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... THE GEOFISICO INSTITUTO...21/0000 UTC AVIATION MODEL
UPPER AIR WIND DATA.
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ERUPTION DETAILS: CONTINUOUS STEAM AND ASH EMISSIONS AS REPORTED BY
THE GEOFISICO INSTITUTO.
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 21/1315 UTC SHOWS
EXTENSIVE MULTILAYERED CLOUDS SHROUDING THE AREA AROUND THE VOLCANO
MAKING DETECTION OF ASH IMPOSSIBLE.
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TRAJECTORY: ANY ASH AT FL350 WOULD MOVE TOWARD THE NORTHWEST AT 10
KT.  WINDS BETWEEN FL240 AND FL300 ARE LIGHT AND VARIABLE IMPLYING
THAT ANY ASH IN THIS LAYER WOULD MOVE LITTLE. 
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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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OUTLOOK:  SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 21/2000 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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TURK/SAB/NOAA/NESDIS
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