FVXX21 KWBC 271830
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1830 UTC 27 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-495         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.  6 HOUR WIND
FORECAST FROM THE 27/1200 UTC AVIATION MODEL.
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS.   
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 27/1715 UTC SHOWS A
WELL DEFINED PLUME EXTENDING TO THE WEST AWAY FROM THE SUMMIT. 
THE PLUME IS 83 KM (44 NMI) IN LENGTH AND 20 KM (10 NMI) IN
WIDTH AND EXTENDS TO THE POINT: 0125S 7918W.
AN AIRCRAFT REPORT AT 27/1614 UTC INDICATED ASH BETWEEN
TUNGURAHUA AND CHIMBORAZO TO FL240.
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TRAJECTORY: ASH UP TO FL240 WOULD MOVE TOWARDS THE WEST AT 20
KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 28/0030 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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WALTER/KARST
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NNNN"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"