FVXX21 KWBC 290800
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1400 UTC 29 OCTOBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-045      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 
NATIONAL WEATHER SERVICE NUMERICAL WEATHER MODEL DATA.  
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ERUPTION DETAILS: OCCASIONAL VENTING OF ASH AND STEAM.
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DETAILS OF ASH: GOES-8 SATELLITE IMAGERY THROUGH 1315 UTC SHOWED A
PLUME OF ASH AND STEAM EXTENDING FROM THE VOLCANO. ESTIMATED BELOW
FL250 THE PLUME IS 8KM (4NMI) WIDE AND EXTENDS 46KM (24NMI) TO THE
SOUTH-SOUTHWEST OF THE SUMMIT.
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TRAJECTORY: NUMERICAL MODEL DATA SUGGEST ASH BETWEEN FL180/250 WOULD
MOVE TOWARD THE SOUTH AT 8-18 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 STATEMENT WILL BE ISSUED AROUND 29/2000 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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BROWN/SAB/NOAA/NESDIS
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NNNN
"Attached Graphic Map Depicting Ash" 

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