FVXX20 KWBC 071750
VOLCANIC ASH ADVISORY     
ISSUED: 2002JAN07/1750Z 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: 2002/012
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INFORMATION SOURCE: GUAYAQUIL SIGMET 02. GOES-8
VISIBLE/INFRARED/MULTISPECTRAL IMAGERY. 07/1800Z UPPER WINDS
FORECAST FROM THE 07/1200Z AVIATION MODEL.
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ERUPTION DETAILS: ASH OBSERVED BY GEOPHYSICAL INSTITUTE TO FL240.
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DETAILS OF ASH CLOUD: ASH COULD NOT BE SEEN IN SATELLITE IMAGERY
THROUGH 1715Z DUE TO CONVECTIVE DEBRIS COVERING THE AREA AROUND
THE VOLCANO. ASH WAS OBSERVED TO FL240 OVER THE VOLCANO. HOWEVER
DUE TO THE CONVECTION AROUND THE VOLCANO...VERTICAL AIR MOVEMENTS
COULD CHANGE THE LEVEL OF ASH DRAMATICALLY IN A SHORT PERIOD OF
TIME. 
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ASH AT OR NEAR THE SUMMIT
WOULD MOVE SOUTHWEST AT 10 TO 15 KNOTS.
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OUTLOOK: SEE SIGMETS.
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NEXT ADVISORY: NO FURTHER ADVISORIES. 
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TURK/HUGHES/STREETT
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