FVXX20 KWBC 081800 VOLCANIC ASH ADVISORY ISSUED: 2002OCT08/1800Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/491 . INFORMATION SOURCE: GOES-8 IMAGERY. GUAYAQUIL MWO SIGMET. AVN MODEL WINDS FORECAST. . ERUPTION DETAILS: ASH OBSERVED AT 08/1105Z OBS ASH DATE/TIME: NIL . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. . FCST ASH CLOUD+6H: SEE SIGMETS . REMARKS: ASH CAN NOT BE SEEN IN SATELLITE IMAGERY THROUGH 08/1745Z.....WALTER . NEXT ADVISORY: NO FURTHER ADVISORIES . NNNN