FVXX20 KNES 170339 VOLCANIC ASH ADVISORY ISSUED: 20070717/0339Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/421 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. INFRASOUND DETECTION. PILOT REPORT. ERUPTION DETAILS: SMALL ASH PLUME OBSERVED AT 16/2049Z OBS ASH DATE/TIME: 17/0245Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL160/FL250 MOVING TO W 15-25 KNOTS. FCST ASH CLOUD +6H: 17/0900Z FCST ASH CLOUD +12H: 17/1500Z FCST ASH CLOUD +18H: 17/2100Z REMARKS: THE ASH PLUME THAT WAS FAINTLY SEEN IN VISIBLE SATELLITE IMAGERY BEFORE SUNSET IS NO LONGER DISCERNABLE IN INFRARED OR MULTISPECTRAL SATELLITE IMAGERY...HOWVER CLOUDS HAVE ALSO INCREASED OVER THE VOLCANO AREA. A HOTSPOT IS ALSO NOT SEEN. ...RUMINSKI NEXT ADVISORY: WILL BE ISSUED BY 20070717/0945Z