FVXX22 KNES 080421 VOLCANIC ASH ADVISORY ISSUED: 20061208/0420Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2006/785 INFORMATION SOURCE: GOES-12. GFS WINDS. SIGMET ERUPTION DETAILS: INTERMITTENT EMISSIONS FOR SEVERAL DAYS OBS ASH DATE/TIME: 08/0345Z OBS ASH CLOUD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: NO ASH OR HOTSPOTS CAN BE SEEN IN SATELLITE IMAGERY BUT IT IS POSSIBLE THAT THE LOW LEVEL WEATHER CLOUDS ARE HINDERING ASH DETECTION. THE MOST RECENT KNOWN ASH OBSERVATION WAS AT 07/1058Z WHEN THE GEOPHYSICAL INSTITUTE OBSERVED WESTWARD MOVING FL220 ASH. ... NEXT ADVISORY: NO FURTHER ADVISORIES