FVXX20 KNES 170841 VOLCANIC ASH ADVISORY ISSUED: 2004SEP17/0840Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W7826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/475 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH EMISSIONS STARTING 16/1749Z OBS ASH DATE/TIME: 17/0815Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/230 MOVING TO W 20 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: NO ASH OR HOTSPOTS CAN BE SEEN IN INFRARED OR MULTISPECTRAL SATELLITE IMAGERY THROUGH 0815Z. THE MOST RECENT KNOWN ASH OBSERVATION WAS AT 16/2245Z WHEN A POSSIBLE SMALL FAINT ASH PLUME COULD BE SEEN IN VISIBLE SATELLITE IMAGERY EXTENDING FROM THE SUMMIT TOWARD THE WEST. ... THIS PRODUCTS HEADER WILL CHANGE FROM KWBC TO KNES EFFECTIVE OCT 28, 2004. NEXT ADVISORY: WILL BE ISSUED BY 2004SEP17/1445Z NNNN