FVXX21 KNES 021841 VOLCANIC ASH ADVISORY ISSUED: 20070802/1839Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/480 INFORMATION SOURCE: GOES-12. GFS WINDS. EXPERIMENTAL INFRASOUND REPORT ERUPTION DETAILS: SEVERAL DAYS OF INTERMITTENT ASH EMISSIONS OBS ASH DATE/TIME: 02/1645Z 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 HOTSPOT CAN BE SEEN IN SATELLITE IMAGERY BUT IT IS POSSIBLE THAT THE LOW LEVEL WEATHER CLOUDS IN THE AREA ARE HINDERING ASH DETECTION. THE MOST RECENT KNOWN ASH OBSERVATION WAS BY SATELLITE AT 01/1309Z WHEN A 7 NM WIDE PLUME TO FL220 WAS SEEN. LAST NIGHTS INFRASOUND REPORT INDICATES A LOW LEVEL OF ACTIVITY. ... NEXT ADVISORY: NO FURTHER ADVISORIES