FVXX20 KNES 151824 VOLCANIC ASH ADVISORY ISSUED: 2006MAY15/1824Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2006/281 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. PILOT REPORT. ERUPTION DETAILS: EMISSIONS OF GASES AND ASH OBS ASH DATE/TIME: 15/1745Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL220 MOVING TO SW 10 KNOTS. FCST ASH CLOUD +6H: 16/0000Z FCST ASH CLOUD +12H: 16/0600Z FCST ASH CLOUD +18H: 16/1200Z REMARKS: ASH CANNOT BE SEEN IN VISIBLE IMAGERY DUE TO CLOUDS. AN AIRCRAFT REPORTED OBSERVING ASH AT 1421Z OVER THE VOLCANO BETWEEN FL160 AND FL220 MOVING SSW. ...MERCKLE NEXT ADVISORY: WILL BE ISSUED BY 2006MAY16/0030Z NNNN