FVXX20 KNES 231324 VOLCANIC ASH ADVISORY ISSUED: 2005SEP23/1324Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2005/139 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS MODEL WINDS. PILOT REPORT. ERUPTION DETAILS: POSSIBLE ASH ERUPTION OBS ASH DATE/TIME: 23/1245Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL180 MOVING TO W 20-25 KNOTS. FCST ASH CLOUD +6H: 23/1900Z FCST ASH CLOUD +12H: 24/0100Z FCST ASH CLOUD +18H: 24/0700Z REMARKS: A PILOT REPORTED SEEING AN ASH CLOUD AT FL165/180 MOVING WEST AT 1152Z. MODEL WINDS SUGGEST WINDS AT THIS FL ARE MOVING WEST AT 20-25 KTS. SUBSEQUENT VISIBLE SATELLITE IMAGERY DOES NOT SHOW ANY DISTINGUISHING PLUME AND NO HOTSPOT WAS NOTED ON MULTISPECTRAL IMAGERY. ...BALDWIN NEXT ADVISORY: WILL BE ISSUED BY 2005SEP23/1930Z NNNN