FVXX20 KWBC 201355 VOLCANIC ASH ADVISORY ISSUED 1355 UTC 20 OCT 2000 BY THE WASHINGTON VAAC . POPOCATEPETL 00-091 MEXICO 1901N 9837W . BACKGROUND: POPOCATEPETL MEXICO (1401-09) SUMMIT HEIGHT 17930 FT (5465 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED IMAGERY AND MULTISPECTRAL IMAGERY. MEXICO CITY UPPER AIR SOUNDING. MEXICO CITY MWO . ERUPTION DETAILS: ERUPTION AROUND 20/1330 UTC. . DETAILS OF ASH CLOUD: THE MEXICO CITY MWO REPORTED AN SMALL ERUPTION OF POPOCATEPETL AT 1330 UTC TO FL210 BASED ON A PILOT REPORT. SATELLITE IMAGERY THROUGH 1332 UTC WAS INCONCLUSIVE. EXTENSIVE HIGH CLOUDS COVERED THE AREA. . TRAJECTORY: ASH TO FL210 WOULD MOVE TOWARDS THE NORTH NORTHEAST AT APPROXIMATELY 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 20/2000 UTC. . 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. . TURK . NNNN