FVXX21 KWBC 270800
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0800 UTC 27 OCTOBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-036      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 AND NATIONAL WEATHER SERVICE
NUMERICAL MODELS  
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ERUPTION DETAILS: CONTINUOUS VENTING OF ASH AND STEAM.
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DETAILS OF ASH: GOES-8 SATELLITE IMAGERY THROUGH 27/0715 UTC SHOWS
THE AREA CONTINUES TO BE OBSCURED BY CLOUDS MAKING DETECTION OF ASH
DIFFICULT. 
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THE QUITO GEOPHYSICAL INSTITUTE REPORTS ASH FROM THE VOLCANO REPORTS
SLIGHT REDUCTION OF ASH FLOW AT ABOUT FL180  MOVING TOWARD THE SOUTH
TO SOUTHWEST AT 10KT.
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TRAJECTORY: NATIONAL WEATHER SERVICE NUMERICAL METEOROLOGICAL MODELS
PREDICT THAT ANY ASH AT FL180 WOULD MOVE TOWARD SOUTH AT 10KT.
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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 AROUND 27/1400 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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