FVXX21 KNES 202003 VOLCANIC ASH ADVISORY ISSUED: 20061020/1959Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2006/629 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. ERUPTION DETAILS: ONGOING EMISSIONS OBS ASH DATE/TIME: 20/1915Z OBS ASH CLOUD: FL100/FL180 4NM WIDE LINE BETWEEN S0128 W07825 - S0123 W07810. ASH IS MOVING NE 5-10 KNOTS. FCST ASH CLOUD +6H: 21/0130Z FL100/FL180 4NM WIDE LINE BETWEEN S0122 W07809 - S0128 W07826. FCST ASH CLOUD +12H: 21/0730Z FL100/FL180 4NM WIDE LINE BETWEEN S0121 W07812 - S0128 W07826. FCST ASH CLOUD +18H: 21/1330Z NOT AVBL. REMARKS: VISIBLE SATELLITE IMAGERY AT 1915Z SHOWED A PLUME OF ASH 4 NMI WIDE EXTENDING APPROXIMATELY 18 NMI TO THE NE. THE GEOPHYSICAL INSTITUTE OBSERVED ASH AT 1909Z FL165/170 MOVING NE. ...BROWN NEXT ADVISORY: WILL BE ISSUED BY 20061021/0200Z