FVXX20 KWBC 270100 VOLCANIC ASH ADVISORY ISSUED: 2002FEB26/0100Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/097 . INFORMATION SOURCE: GOES-8 IMAGERY. AVIATION MODEL WIND FORECAST. GEOPHYSICAL INSTITUTE . ERUPTION DETAILS: ASH OBSERVED AT 26/1650Z. . OBS ASH DATE/TIME: 26/2317Z . OBS ASH CLOUD: SFC/FL230 MOVING W 15 KNOTS ASH NOT IDENTIFIABLE FROM SATELLITE DATA . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: QUAYAQUIL MWO REPORT...ACFT TAE174 SECU/SEQU OBSERVED VOLCANIC ASH CLOUD BETWEEN FL180/230 MOVING W. ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 27/0015 DUE TO EXTENSIVE WEATHER CLOUDS. . NEXT ADVISORY: WILL BE ISSUED BY 2002FEB27/0700Z. . NNNN