FVXX23 KWBC 210403 VOLCANIC ASH ADVISORY ISSUED: 2003JUN21/0400Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 1401-09 LOCATION: N1901W09837 AREA: MEXICO SUMMIT ELEVATION: 17930 FT (5465 M) ADVISORY NUMBER: 2003/082 INFORMATION SOURCE: MEXICO CITY MWO. GOES-12 IMAGERY. UPPER AIR SOUNDING. ERUPTION DETAILS: EXHALATION AT 20/2057Z OBS ASH DATE/TIME: 21/0345Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL110 MOVING SE 5-10 KNOTS. FL120/FL250 MOVING W 10-15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS. REMARKS: ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 21/0345Z DUE TO EXTENSIVE WEATHER CLOUDS. NEXT ADVISORY: WILL BE ISSUED BY 2003JUN21/1000Z NNNN