FVXX21 KWBC 10130
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VOLCANIC ASH ADVISORY
ISSUED 0130 UTC 09 NOV 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-098    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 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY...GUAYAQUIL METEOROLOGICAL WATCH OFFICE...00 UTC AVIATION
NUMERICAL WEATHER MODEL WIND DATA...REPORT OF THE INSTITUTO
GEOFISICO 
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ERUPTION DETAILS: CONTINUOUS ASH VENTING AND POSSIBLY SOME
OCCASIONAL EXPLOSIONS.
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 2345 UTC INDICATES THAT
THE LEVEL OF ASH ACTIVITY HAS REMAINED ABOUT CONSTANT OVER THE LAST
6 HOURS. ASH CONTINUES TO VENT FROM THE SUMMIT TO THE SOUTHEAST. THE
CURRENT PLUME EXTENDS 88 KM (48 NMI) TO THE SOUTHEAST AND IS 27 KM
(15 NMI) WIDE. THE ASH IS STILL ESTIMATED TO BE AT FL320 BASED ON
SATELLITE IMAGERY ANALYSIS AND THE 0000 UTC AVIATION MODEL UPPER-AIR
SOUNDING DATA.
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TRAJECTORY: SOUTHEAST AT 10 TO 20 KNOTS.
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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 10/0730 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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