FVXX20 KNES 170750 VOLCANIC ASH ADVISORY ISSUED: 20070417/0746Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/223 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. ERUPTION DETAILS: INTERMITTENT ASH EMISSIONS OBS ASH DATE/TIME: 17/0645Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/180 MOVING TO W 5-15 KNOTS. FL200/260 MOVING TO W 20-30 KNOTS. FCST ASH CLOUD +6H: 17/1300Z FCST ASH CLOUD +12H: 17/1900Z FCST ASH CLOUD +18H: 18/0100Z REMARKS: BETWEEN ABOUT 16/2000Z AND 17/0000Z THERE WERE SEVERAL OBSERVATIONS OF ASH BY GROUND OBSERVERS AND A PILOT AND POSSIBLY ALSO IN MULTISPECTRAL SATELLITE IMAGERY. THE ASH WAS TO ABOUT FL260 AND MOVED WESTWARD. SINCE THEN THERE HAVE BEEN NO KNOWN ASH OBSERVATIONS AND CURRENTLY THERE IS NO ASH OR HOTSPOTS IN SATELLITE IMAGERY. NEXT ADVISORY: WILL BE ISSUED BY 20070417/1345Z