FVXX21 KWBC 221430
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1430 UTC 22 OCTOBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-017       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...U.S. NATIONAL WEATHER SERVICE NUMERICAL
WEATHER PREDICTION MODELS 
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ERUPTION DETAILS: CONTINUOUS VENTING OF ASH AND STEAM
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DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE IN ITS DAILY REPORT ON THE
VOLCANO INDICATED A CONTINUOUS VENTING OF ASH AND GASES.  SEISMIC
ACTIVITY HAS ALSO BEEN CONTINUOUS AT HIGH LEVELS. GOES-8 VISIBLE
SATELLITE IMAGERY AT 1315 SHOWS A FAINT PLUME 21KM (11 NMI) WIDE
EXTENDING 79KM (43NMI) WEST OF THE VOLCANO. THE QUAYAQUIL WMO
REPORTS ASH AT FL220/230.
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TRAJECTORY: NUMERICAL MODEL FORECASTS SUGGEST THAT ANY ASH BETWEEN 
FL180 AND FL250 WOULD MOVE TOWARD THE WEST AT 8-12 KT.
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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 MESSAGE WILL BE ISSUED AROUND 22/2000 UTC.
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BROWN/SAB/NOAA/NESDIS
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN
"Attached Graphic Map Depicting Ash" 

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