FVXX21 KWBC 192105
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2105 UTC 19 DEC 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-268        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...19/1200 UTC AVIATION MODEL WIND FORECAST...
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ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM...
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DETAILS OF ASH: THE GOES-8 IMAGERY THRU 19/2015 UTC DOES INDICATE A
SMALL PLUME OF ASH AND STEAM LEAVING THE SUMMIT AND PUSHING OFF TO
THE WEST-SOUTHWEST. THE ASH AND STEAM IS AGAIN ESTIMATED TO BE
REACHING FL180.
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THE PLUME EXTENDS 17 KM (9NM) TO THE WEST-SOUTHWEST OF THE SUMMIT
AND IS 5 KM (2NM) WIDE.

TRAJECTORY: WEST-SOUTHWEST AT ABOUT 15-20 KNOTS.
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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.
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EFFECTIVE JANUARY 3 2000 AT 0000 UTC... ALL REFERENCES TO LATITUDE
AND LONGITUDE IN VOLCANIC ASH ADVISORY STATEMENTS WILL BE IN DEGREES
AND MINUTES OF A DEGREE.  EXAMPLE: 16.70N 62.20W  WILL BE 1642N6212W
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THE NEXT STATEMENT WILL BE ISSUED BY 20/0300 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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ORRISON
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NNNN
"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"