FVXX22 KWBC 091515 VOLCANIC ASH ADVISORY ISSUED: 2001SEP09/1515Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/94 . INFORMATION SOURCE: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY. CENAPRED POPO CAMERA. MEXICO CITY MWO. . ERUPTION DETAILS: CENAPRED REPORTS FREQUENT EMISSIONS OF ASH. . DETAILS OF ASH CLOUD: AT 1445Z MEXICO CITY MWO REPORTS ASH BETWEEN FL180 AND FL230 12 NMI WSW OF THE SUMMIT. THE POPO CAMERA AT 1445Z SHOWED NEAR SUMMIT EMISSIONS EXTENDING TOWARD THE WEST. DUE TO CLOUD COVER OVER THE AREA NO PLUME IS VISIBLE IN THE LATEST SATELLITE IMAGERY AT 09/1430Z. . TRAJECTORY: THE 1200Z UPPER LEVEL WINDS AT MEXICO CITY INDICATED ASH BELOW FL240 WOULD MOVE WEST TO SOUTHWEST AROUND 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 09/2115Z. . 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. . BROWN . NNNN