FVXX21 KWBC 101230
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VOLCANIC ASH ADVISORY
ISSUED 1230 UTC 10 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-100    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...GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMETS...00 UTC
UPPER AIR WIND DATA FROM TUNGURAHUA ...REPORT OF THE INSTITUTO
GEOFISICO 
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ERUPTION DETAILS: INCREASING EMISSIONS STARTING AROUND 1100 UTC
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DETAILS OF ASH: RECENT MULTISPECTRAL IMAGERY INDICATES AN INCREASED 
ASH FLOW.  AS OF 1145 UTC A NARROW PLUME OF ASH EXTENDS FROM THE
SUMMIT TO 15 NMI TO THE EAST NORTHEAST OF THE SUMMIT. MOVEMENT IS TO
THE EAST-NORTHEAST AT 10-15KT. UPPER AIR WIND DATA INDICATES HEIGHT
AT APPROXIMATELY FL300.  
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TRAJECTORY: UPPER AIR PATTERNS INDICATE THAT ASH AROUND FL300 WOULD
MOVE TO THE EAST TO EAST NORTHEAST AT 10-15KT.
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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 AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 10/1830 UTC.
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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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