FVXX20 KNES 170308 VOLCANIC ASH ADVISORY ISSUED: 20070417/0302Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/222 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. ERUPTION DETAILS: SEVERAL ASH OBSERVATIONS OBS ASH DATE/TIME: 17/0215Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/140 MOVING TO W 5-15 KNOTS. FL160/260 MOVING TO W 20-30 KNOTS. FCST ASH CLOUD +6H: 17/0830Z FCST ASH CLOUD +12H: 17/1430Z FCST ASH CLOUD +18H: 17/2030Z REMARKS: THE GEOPHYSICAL INSTITUTE OBSERVED WESTWARD MOVING ASH AT 16/2156Z AND AGAIN AT 16/2340Z. AT 16/2219Z A PILOT REPORTED ASH MOVING WESTWARD AT 23 KNOTS. THE REPORTS PUT THE ASH AT OR BELOW FL260. A POSSIBLE AREA OF ASH MOVING WESTWARD AT 29 KNOTS COULD BE SEEN IN MULTISPECTRAL IMAGERY STARTING AROUND 16/2130Z BUT IT HAS NOW BECOME TOO FAINT TO SEE IN IMAGERY. CURRENT IMAGERY DOES NOT SHOW EITHER HOTSPOTS OR ASH BUT ASH DETECTION MIGHT BE HINDERED BY THE LOW WEATHER CLOUDS IN THE AREA. NEXT ADVISORY: WILL BE ISSUED BY 20070417/0900Z