FVXX20 KWBC 271900 VOLCANIC ASH ADVISORY ISSUED: 2002FEB27/1900Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/100 . INFORMATION SOURCE: GOES-8 IMAGERY. AVIATION MODEL WIND FORECAST. GEOPHYSICAL INSTITUTE . ERUPTION DETAILS: ASH OBSERVED AT 27/1215Z . OBS ASH DATE/TIME: 27/1215Z . OBS ASH CLOUD: SFC/FL200 MOVING NW 10 KNOTS ASH NOT IDENTIFIABLE FROM SATELLITE IMAGERY. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE NARROW PLUME OF ASH OBSERVED EARLIER MOVING TO THE WEST HAS DISSIPATED. THERE HAVE BEEN NO FURTHER OBSERVATIONS OF ASH AND STEAM. KARST . NEXT ADVISORY: NO FURTHER ADVISORIES . NNNN