FVXX21 KWBC 161030
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1030 UTC 16 NOV 1999 BY THE WASHINGTON VAAC
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TUNGURAHUA 99-126 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.
AVIATION MODEL UPPER-AIR DATA AND UPPER AIR WIND DATA FROM INSTITUTO
GEOFISICO.
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ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS
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DETAILS OF ASH: ASH FROM AN APPARENT NEW EMISSION CAN BE SEEN IN
MULTISPECTRAL IMAGERY THROUGH 16/0945 UTC. THIS ASH PLUME IS MOVING
NORTHEAST AT A HEIGHT BETWEEN FL180 AND FL200 BASED ON SOUNDING DATA
FROM THE INSTITUTO GEOFISICO.
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TRAJECTORY: ASH BETWEEN FL180 AND FL200 WOULD MOVE NORTHEAST AT
ABOUT 10 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 16/1630 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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