FVXX20 KWBC 012230 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 2230 UTC 01 SEP 1999 BY THE WASHINGTON VAAC . POPOCATEPETL 99-86 MEXCIO 19.02N 98.62W . BACKGROUND: POPOCATEPETL (1401-09) SUMMIT HEIGHT 17930 FT (5465M) . SOURCES OF INFORMATION: MEXICO CITY MWO. . ERUPTION DETAILS: 01/1537 UTC MOVING NW BETWEEN FL180 AND FL240. . DETAILS OF ASH CLOUD: THERE WAS NO EVIDENCE OF AN ASH PLUME FROM SATELLITE IMAGERY THRU 01/2145 UTC. METEOROLOGICAL CLOUDS COVER THE AREA AROUND THE VOLCANO. . TRAJECTORY: N/A. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH ADVISORY STATEMENTS OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS www.ssd.noaa.gov/VAAC/washington.html (all lower case except /VAAC/) . OUTLOOK: SEE SIGMETS AND VAFTAD . THIS WILL BE THE LAST MESSAGE FOR THIS EVENT. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN