FVXX20 KWBC 291900 VOLCANIC ASH ADVISORY ISSUED: 2002AUG29/1900Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/421 . INFORMATION SOURCE: GOES-8 IMAGERY. GUAYAQUIL MWO SIGMET. AVN MODEL WINDS FORECAST. ERUPTION DETAILS: ASH OBSERVED AT 29/1105Z. . 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 THE SATELLITE IMAGERY THROUGH 29/1815Z. THE AREA WILL BE CLOSELY MONITORED FOR ANY FURTHER ACTIVITY....WALTER . NEXT ADVISORY: NO FURTHER ADVISORIES. . NNNN