FVXX20 KWBC 021545 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1545 UTC 02 SEP 1999 BY THE WASHINGTON VAAC . POPOCATEPETL 99-87 MEXICO 19.02N 98.62W . BACKGROUND: POPOCATEPETL (1401-09) SUMMIT HEIGHT 17930 FT (5465M) . SOURCES OF INFORMATION: MEXICO CITY MWO CENAPRED VOLCANO CAM. . ERUPTION DETAILS: 02/1500 UTC BETWEEN FL180 AND FL240. . DETAILS OF ASH CLOUD: THE MWO REPORTED THAT THE EVENT CONSISTED OF STEAM AND ASH SEPARATING FROM THE SOURCE AND MOVING WEST-SOUTHWEST. AT 02/1530 UTC CENAPRED VOLCANO CAM SHOWS NO ACTIVITY NEAR THE SUMMIT. CURRENT SATELLITE IMAGERY AT 02/1515 UTC SHOWS EXTENSIVE CLOUDINESS WEST OF THE VOLCANO MAKING DETECTION OF ASH NEARLY IMPOSSIBLE. . 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 . NEXT MESSAGE WILL BE AT 02/2145 . . PLEASE REFER TO VAFTAD AND SIGMETS FOR CURRENT WARNINGS. . WALTER/SAB NNNN