FVXX20 KNES 281712 VOLCANIC ASH ADVISORY ISSUED: 2004OCT28/1712Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/523 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS MODEL WINDS. GEOPHYSICAL INST. ERUPTION DETAILS: ASH OBSERVED AT 28/0505Z OBS ASH DATE/TIME: NIL OBS ASH CLOUD: FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: THERE HAVE BEEN NO FURTHER OBSERVATIONS OF ASH BY THE INSTITUTE. ...KARST NEXT ADVISORY: NO FURTHER ADVISORIES NNNN