FVXX21 KNES 170154 VOLCANIC ASH ADVISORY ISSUED: 20061017/0154Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2006/617 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. PILOT REPORT. ERUPTION DETAILS: ASH OBSERVED SINCE 16/1315Z. OBS ASH DATE/TIME: 17/0115Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL200 MOVING TO SW 5 KNOTS. FCST ASH CLOUD +6H: 17/0730Z FCST ASH CLOUD +12H: 17/1330Z FCST ASH CLOUD +18H: 17/1930Z REMARKS: A POSSIBLE ASH PLUME WAS SEEN EXTENDING TO THE SOUTHSOUTHWEST FROM THE SUMMIT ON 16/2145Z VISIBLE IMAGERY BUT NO CORRESPONDING SIGNATURE WAS SEEN ON MULTISPECTRAL IMAGERY SO CONFIDENCE IS LOW. HIGH LEVEL WEATHER CLOUDS HAVE MOVED THROUGH THE REGION TOWARD THE SOUTHWEST. A PILOT REPORT AT 16/2218Z REPORTED ASH TO FL200 OVER THE VOLCANO. WILL LOWER ASH HEIGHT TO FL200 TO REFLECT THESE OBSERVATIONS. ...BALDWIN NEXT ADVISORY: WILL BE ISSUED BY 20061017/0800Z