FVXX20 KWBC 270700 VOLCANIC ASH ADVISORY ISSUED: 2002FEB27/0700Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/098 . INFORMATION SOURCE: GOES-8 IMAGERY. AVIATION MODEL WIND FORECAST. GEOPHYSICAL INSTITUTE . ERUPTION DETAILS: ASH OBSERVED AT 26/2317 . OBS ASH DATE/TIME: 27/0415Z . OBS ASH CLOUD: SFC/FL230 MOVING W 15 KNOTS ASH NOT IDENTIFIABLE FROM SATELLITE DATA . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: ASH REPORTED IN SURFACE REPORT. ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 27/0415 DUE TO EXTENSIVE WEATHER CLOUDS. . NEXT ADVISORY: WILL BE ISSUED BY 2002FEB27/1300Z. . NNNN