FVXX21 KWBC 082340 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 2340 UTC 08 MAR 1999 BY THE WASHINGTON VAAC . POPOCATEPETL 99-012 MEXICO 19.02N 98.62W . BACKGROUND: POPOCATEPETL MEXICO (1401-09) SUMMIT HEIGHT 17930 FT (5465 M) . SOURCES OF INFORMATION: GOES-8 SATELLITE IMAGERY THROUGH 2315 UTC. SURFACE OBSERVATION FROM PUEBLA...UPPER AIR DATA FROM MEXICO CITY . ERUPTION DETAILS: MINOR ERUPTION AROUND 08/1600Z . DETAILS OF ASH CLOUD: NO ASH SIGNATURES HAVE BEEN OBSERVED SINCE 08/1615 UTC ON SATELLITE IMAGERY. . TRAJECTORY: ASH WAS LAST SEEN MOVING TOWARD THE SOUTHEAST AT ABOUT 13 KNOTS. . 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/messages.html (all lower case except /VAAC/) . OUTLOOK: SEE SIGMETS . THIS IS THE LAST MESSAGE ON THIS EVENT. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN