FVXX21 KWBC 190100 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0100 UTC 19 MAR 1999 BY THE WASHINGTON VAAC . POPOCATEPETL 99-036 MEXICO 19.02N 98.62W MESSAGE NUMBER HAS BEEN CHANGED DUE TO A PREVIOUS ERROR IN NUMBERING . BACKGROUND: POPOCATEPETL MEXICO (1401-09) SUMMIT HEIGHT 17930 FT (5465 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY UPPER AIR SOUNDING. . ERUPTION DETAILS: ERUPTION OCCURRED AROUND 18/1130 UTC . DETAILS OF ASH CLOUD: WIDESPREAD METEOROLOGICAL CLOUDS COVER THE REGION AROUND THE VOLCANO. ASH FOLLOWED EARLIER HAS DISSIPATED. . TRAJECTORY: NONE . 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 WILL BE THE LAST MESSAGE FOR THIS EVENT. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN