FVXX20 KWBC 290400 VOLCANIC ASH ADVISORY ISSUED: 2002MAR29/0400Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S07826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/191 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: ASH EMISSION AT 28/1508Z. . OBS ASH DATE/TIME: 29/0315Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL200 MOVING NW AT 10 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: ALTHOUGH ASH WAS NOT DETECTED IN SATELLITE IMAGERY THE GEOPHYSICAL INSTITUTE OBSERVED ASH OVER THE VOLCANO AT 28/2325Z TO FL200.....KARST . NEXT ADVISORY: WILL BE ISSUED BY 2002MAR29/1000Z. . NNNN