FVXX21 KWBC 180845 VOLCANIC ASH ADVISORY ISSUED: 2002DEC18/0845Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 1401-09 LOCATION: N1901W09837 AREA: MEXICO SUMMIT ELEVATION: 17930 FT (5465 M) ADVISORY NUMBER: 2002/032 INFORMATION SOURCE: GOES-8 IMAGERY. UPPER AIR SOUNDING. MEXICO CITY MWO ERUPTION DETAILS: ERUPTION AT 18/0812Z. OBS ASH DATE/TIME: 18/0815Z OBS ASH CLOUD: SFC/FL350 8 NM WIDE LINE OF ASH EXTENDING BETWEEN N1901W09837 N1907W09834 MOVING E 10 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: SATELLITE IMAGERY INDICATED AN ERUPTION OF POPOCATEPETL OCCURRED SHORTLY AFTER 0800Z. ASH WAS ESTIMATED TO BE AROUND FL350. NEXT ADVISORY: WILL BE ISSUED BY 2001DEC18/0930Z NNNN