FVXX21 KWBC 230118 CCA
VOLCANIC ASH ADVISORY - CORRECTION
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ISSUED: 2001DEC23/0118Z  VAAC: WASHINGTON
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CORRECTION TO INCREASE MAXIMUM HEIGHT OF ASH TOPS TO FL360.
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VOLCANO: POPOCATEPETL 1401-09
LOCATION: 1901N 9837W    AREA: MEXICO
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SUMMIT ELEVATION: 17930 FT (5465 M) 
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ADVISORY NUMBER: 2001/121

INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL
IMAGERY...MEXICO CITY METEOROLOGICAL WATCH OFFICE...MEXICO CITY
UPPER AIR DATA...AVIATION MODEL FORECAST UPPER LEVEL WINDS VALID
23/00Z
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ERUPTION DETAILS: ERUPTION OCCURRED AROUND 22/2335Z. 
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DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 0015Z SHOWED AN
ASH CLOUD EXTENDING FROM 1902N9823W TO 1849N9809W.  THE CENTER OF
THE ASH CLOUD WAS 54 KM (29 NMI) TO THE EAST SOUTHEAST OF THE
SUMMIT AND WAS UP TO 15 KM (8 NMI) WIDE.  BASED ON THE MOTION OF
THE ASH CLOUD THROUGH 0145Z THE ASH IS NOW ESTIMATED TO BE UP TO
FL360.
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TRAJECTORY: ASH BETWEEN FL180 AND FL220 WOULD MOVE TOWARDS THE
EAST NORTHEAST AT 10 TO 15 KNOTS. ASH AT FL220 WOULD MOVE TOWARDS
THE EAST AT 15 TO 20 KNOTS. ASH BETWEEN FL220 AND FL360 WOULD
MOVE TOWARDS THE EAST SOUTHEAST AT 30 TO 40 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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NEXT ADVISORY: WILL BE ISSUED BY 2001DEC23/0700Z.
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TURK  
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NNNN"Attached Graphic Map Depicting Ash Only" 

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