FVXX21 KWBC 290830
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0830 UTC 29 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-182       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 MULTISPECTRAL AND INFRARED
IMAGERY...REPORT FROM THE GEOFISICO INSTITUTO...00 UTC AVIATION
MODEL WIND FORECAST
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ERUPTION DETAILS: CONTINUOUS STEAM EMISSIONS AND SOME ASH EMISSIONS
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DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 0745
UTC.  HOWEVER LOW AND MID LEVEL WEATHER CLOUDS MIGHT BE HAMPERING
ASH DETECTION.  AT 28/2145 UTC UNDER CLEARER SKIES AN ASH PLUME AT
ABOUT FL300 WAS SEEN EXTENDING FROM THE SUMMIT TOWARD THE WEST
SOUTHWEST.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH AT ABOUT FL300
WOULD MOVE TO THE WEST SOUTHWEST AT LESS THAN 15 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 AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 29/1430 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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