FVXX20 KWBC 182000 CCA VOLCANIC ASH ADVISORY... CORRECTION ISSUED: 2001DEC18/2000Z VAAC: WASHINGTON . CORRECTION FOR ERUPTION DETAILS TIME . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/110 . INFORMATION SOURCE: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY MWO REPORT. CENAPRED CAMERA. . ERUPTION DETAILS: SMALL ERUPTION AROUND 18/1735Z. . DETAILS OF ASH CLOUD: AT 18/1815Z A PLUME OF LIGHT ASH AND STEAM EXTENDS EAST NORTHEAST 77 DEGREES FROM THE VOLCANO AROUND 50 KM (27 NMI) TO POINT 1907N 9898W AND WAS AROUND 18 KM (10 NMI) WIDE. THE HEIGHT OF ASH IS ESTIMATED TO AROUND FL250. IMAGERY CONTINUES TO SHOW A HOT SPOT AT THE VOLCANO. . TRAJECTORY: THE ASH TO FL250 IS MOVING AROUND 35 KNOTS TO THE EAST NORTHEAST. . OUTLOOK: SEE SIGMETS. . NEXT ADVISORY: WILL BE ISSUED BY 2001DEC19/0100Z. . . NNNN