FVXX20 KWBC 200349 VOLCANIC ASH ADVISORY ISSUE: 2003JUL20/0400Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 1401-09 LOCATION: N1901W09837 AREA: MEXICO SUMMIT ELEVATION: 17930 FT (5465 M) ADVISORY NUMBER: 2003/105 INFORMATION SOURCE: GOES-12 IMAGERY. MEXICO CITY METEOROLOGICAL WATCH OFFICE. ERUPTION DETAILS: ERUPTION AT 19/1420Z. OBS ASH DATE/TIME: NIL. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. FCST ASH CLOUD +6H: SEE SIGMETS AND VAFTAD. REMARKS: ASH COULD NO LONGER BE DETECTED IN SATELLITE IMAGERY. TURK NEXT ADVISORY: NO FURTHER ADVISORIES. NNNN