FVXX20 KWBC 012230 VOLCANIC ASH ADVISORY ISSUED 2230 UTC 01 SEP 2000 BY THE WASHINGTON VAAC . POPOCATEPETL 00-063 MEXICO 1901N 9837W . BACKGROUND: POPOCATEPETL MEXICO (1401-09) SUMMIT HEIGHT 17930 FT (5465 M) . SOURCES OF INFORMATION: MEXICO CITY METEOROLOGICAL WATCH OFFICE. GOES-8 VISIBLE...INFRARED...AND MULTISPECTRAL IMAGERY. UPPER AIR SOUNDING FROM MEXICO CITY. CENAPRED POPO CAMERA. . ERUPTION DETAILS: REPORTED ASH ERUPTION AT 1651 UTC. . DETAILS OF ASH CLOUD: THE MEXICO CITY MWO REPORTED AN ERUPTION OF POPOCATEPETL AT 1651 UTC TO AN ESTIMATED HEIGHT OF FL260. THE LATEST SATELLITE IMAGERY DOES NOT DETECT ANY ASH FROM THAT ERUPTION. THE ASH CLOUD DETECTED TO THE SOUTHWEST OF THE VOLCANO DISSIPATED. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH TO FL260 WOULD MOVE SOUTHWEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THIS WILL BE THE LAST MESSAGE FOR THIS EVENT. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWER CASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . KARST . NNNN