FVXX20 KWBC 251330 VOLCANIC ASH ADVISORY ISSUED: 2001OCT25/1330Z VAAC: WASHINGTON . . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/100 . INFORMATION SOURCE: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY MET WATCH OFFICE. AVIATION MODEL FORECAST AT 1200Z POPO CAM . ERUPTION DETAILS: ERUPTION AT 25/1240Z. . DETAILS OF ASH CLOUD: THE MEXICO CITY MET WATCH OFFICE REPORTED AN ERUPTION OF POPO TO FL220. SATELLITE IMAGERY THROUGH 1302Z SHOWS A POSSIBLE NARROW PLUME OF ASH EXTENDING TO THE NORTH OF THE SUMMIT. THE LEADING EDGE OF THIS PLUME IS APPROXIMATELY 10 NM (20 KM ) FROM THE SUMMIT. . TRAJECTORY: ASH TO FL220 WILL MOVE TO THE NORTH AND NORTHWEST AT 10 KTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE AT 25/1930Z. . 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/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . . KARST . NNNN