FVXX20 KWBC 281856 VOLCANIC ASH ADVISORY ISSUED: 2004MAR28/1900Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/155 INFORMATION SOURCE: GOES-12 IMAGERY. ERUPTION DETAILS: ERUPTION OBSERVED AT 28/1145Z. OBS ASH DATE/TIME: NIL. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: THE SUSPICIOUS PLUME DETECTED IN SATELLITE IMAGERY EARLY IN THE DAY HAD DISSIPATED BY 1815Z. TURK NEXT ADVISORY: NO FURTHER ADVISORIES. NNNN