FVXX20 KWBC 170540
VOLCANIC ASH ADVISORY
ISSUED: 2001AUG17/0540Z VAAC: WASHINGTON
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VOLCANO: TUNGURAHUA 1502-08
LOCATION: 0128S 7826W AREA: ECUADOR
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SUMMIT ELEVATION: 16480 FT (5023 M)
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ADVISORY NUMBER: 2001/182
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INFORMATION SOURCE: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY.
GUAYAQUIL SIGMET. GEOPHYSICAL INSTITUTE IN QUITO. 06 HOUR WIND FORECAST FROM
THE 17/0000Z AVIATION MODEL.
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ERUPTION DETAILS: NEARLY CONTINUOUS ERUPTION SINCE 06/1203Z.
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DETAILS OF ASH CLOUD: GOES-8 SATELLITE IMAGERY THROUGH 17/0415Z SHOWED AN
ERUPTION TO ABOUT FL400 OCCURRED AT ABOUT 16/0315Z. A SMALL AREA OF ASH FROM
THIS ERUPTION ASH HAS MOVED TOWARD THE EAST AT ABOUT 25-30 KNOTS. AT 0415Z
THIS AREA OF ASH IS ABOUT 25 NMI LONG AND 10 NMI WIDE AND CENTERED ABOUT THE
POINT 0131S 7839W. IMAGERY ALSO SHOW A FAINT PLUME OF ASH ESTIMATED AT FL280
EXTENDING APPROXIMATELY TO THE POINT 0130S 8036W. THIS PLUME IS ABOUT 125 NMI
LONG AND 20 NMI WIDE.
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TRAJECTORY: ASH AT FL400 WILL MOVE EAST AT ABOUT 25 TO 30 KNOTS. ASH FROM THE
SUMMIT TO FL280 WILL MOVE WEST AT ABOUT 10 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT ADVISORY WILL BE ISSUED BY 17/1200Z.
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INTERNET URLS...
MESSAGE LISTSERV WWW.SSD.NOAA.GOV/VAAC/SUBSCRIBE.HTML
MESSAGES GRAPHICS AND IMAGERY WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML
(ALL LOWERCASE EXCEPT /VAAC/)
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN"Attached Graphic Map Depicting Ash Only"
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