FVXX21 KWBC 310200
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0200 UTC 31 OCTOBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-051      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 INFRARED AND MULTISPECTRAL IMAGERY... 
GEOPHYSICAL INSTITUTE IN QUITO
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ERUPTION DETAILS: OCCASIONAL VENTING OF ASH AND STEAM.
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DETAILS OF ASH: IN THEIR DAILY REPORT THE GEOPHYSICAL INSTITUTE
INDICATED THAT SEISMIC ACTIVITY HAD BEEN LOW DURING THE DAY BUT
EXPLOSIONS OF INCANDESCENT MATERIAL...STEAM AND GASES HAD BEEN MORE
FREQUENT.  SATELLITE IMAGERY THROUGH 0115 UTC INDICATED HIGH LEVEL
CLOUDS BUT NO ASH SIGNATURE WAS DETECTED. 
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TRAJECTORY: N/A.
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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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THE NEXT STATEMENT WILL BE ISSUED BY 31/0800 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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TURK
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