FVXX20 KWBC 092100 VOLCANIC ASH ADVISORY ISSUED: 2002OCT09/2100Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/493 . INFORMATION SOURCE: GOES-8 IMAGERY. GEOPHYSICAL INSTITUTE. GUAYAQUIL MWO SIGMET. AVN MODEL WINDS FORECAST. . ERUPTION DETAILS: ASH OBSERVED AT 09/1358Z OBS ASH DATE/TIME: 09/2045Z . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL250 MOVING W 10-15 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS . REMARKS: THE GEOPHYSICAL INSTITUTE REPORTS ASH OBSERVED AT 09/1358Z. THERE HAVE BEEN NO FURTHER OBSERVATIONS OF ASH FROM THE INSTITUTE. CLOUDS OVER THE REGION MAKE IT DIFFICULT TO DETECT ASH IN SATELLITE IMAGERY. KARST . NEXT ADVISORY: WILL BE ISSUED BY 2002OCT10/0300Z . NNNN