FVXX20 KNES 211655 VOLCANIC ASH ADVISORY ISSUED: 2005OCT21/1655Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2005/153 INFORMATION SOURCE: GUAYAQUIL MWO. GFS MODEL WINDS. PILOT REPORT. ERUPTION DETAILS: ASH OBSERVED 21/1610Z OBS ASH DATE/TIME: 21/1615Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL200 MOVING TO E 0-5 KNOTS. FCST ASH CLOUD +6H: 21/2230Z FCST ASH CLOUD +12H: 22/0430Z FCST ASH CLOUD +18H: 22/1030Z REMARKS: A PILOT REPORTED ASH AT 1610Z AT FL200 MOVING EAST. ASH CAN NOT BE DETECTED IN SATELLITE IMAGERY DUE TO CLOUDS. ... NEXT ADVISORY: WILL BE ISSUED BY 2005OCT21/2300Z NNNN