FVXX20 KWBC 191240 VOLCANIC ASH ADVISORY ISSUED: 2002APR19/1240Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S07826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/218 . INFORMATION SOURCE: GOES-8 IMAGERY. GUAYAQUIL MWO SIGMET. MULTI- SPECTRAL IMAGERY. . ERUPTION DETAILS: AIRCRAFT OBSERVED ASH AT 1200Z. . OBS ASH DATE/TIME: 19/1215Z . OBS ASH CLOUD: SFC/220 4 NM WIDE LINE OF ASH EXTENDING BETWEEN 0128S07826W 0125S07833W. ASH IS MOVING NW 5-10 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: A SMALL ASH PLUME CAN BE SEEN IN MULTI-SPECTRAL IMAGERY MOVING TO THE NORTHWEST AT 5-10 KNOTS. THIS PLUME IS NOW APPROXIMATELY 7 NM FROM THE SUMMIT. A SIGMET CITES A 1200Z AIRCRAFT REPORT OF ASH FL175/220. ANALYST KIBLER/TURK. . NEXT ADVISORY: WILL BE ISSUED BY 2002APR19/1900Z. . NNNN