FVXX21 KWBC 250000
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0000 UTC 25 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-483         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 INFRARED AND MULTISPECTRAL
IMAGERY.  UPPER AIR WIND FORECAST FROM THE AVIATION MODEL. 
INSTITUTO GEOFISICO IN QUITO.
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ERUPTION DETAILS: CONTINUOUS GASES AND ASH EMISSIONS.   
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 24/2315 UTC SHOWS NO
VISIBLE ASH PLUME AT THIS TIME.  LOW AND MID LEVEL CLOUDS
COVER THE AREA AROUND THE VOLCANO MAKING DETECTION OF ASH
DIFFICULT. THE LAST REPORT OF ASH WAS AT 24/1636 UTC BY THE
INSTITUTO GEOFISICO WITH ASH TO FL230.
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TRAJECTORY: ASH TO FL230 WOULD MOVE TOWARDS THE WEST-SOUTHWEST
AT ABOUT 15 TO 20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 25/0600 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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KARST
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