FVXX21 KWBC 030030
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VOLCANIC ASH ADVISORY
ISSUED 0030 UTC 03 NOVEMBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-066      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...INSTITUTO
GEOFISICO IN ECUADOR...UPPER AIR WINDS FROM THE INSTITUTO GEOFISICO
...NUMERICAL MODEL WEATHER DATA FROM THE U.S. NATIONAL WEATHER
SERVICE.
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ERUPTION DETAILS:  OCCASIONAL WEAK TO MODERATE ERUPTIONS AND A
STEADY RELEASE OF ASH.
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DETAILS OF ASH: MULTISPECTRAL SATELLITE IMAGERY THROUGH 02/2345 UTC
SHOWS A SMALL ASH CLOUD THAT HAS NOW PUSHED TO THE SOUTHEAST OF THE
VOLCANO BUT EXTENDS BACK TO THE SUMMIT. EARLIER ASH SEEN MOVING TO
THE SOUTHWEST IS NO LONGER DISCERNIBLE. THE ASH IS NOW ESTIMATED TO
BE BETWEEN FL300 AND FL340 BASED ON TUNGURAHUA UPPER-AIR DATA
PROVIDED BY THE INSTITUTO GEOFISICO. ASH EXTENDS A DISTANCE OF 41 KM
(22 NMI) TO A POINT AT 1.76S 78.13W. THE PLUME IS 10 KM WIDE (5NMI) 
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TRAJECTORY: ASH BETWEEN FL300 AND FL340 IS OBSERVED IN SATELLITE
IMAGERY MOVING TO THE SOUTHEAST NOW 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 03/0630 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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ORRISON
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NNNN
"Attached Graphic Map Depicting Ash" 

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