FVXX20 KNES 180146 VOLCANIC ASH ADVISORY ISSUED: 20070418/0146Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/226 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. GEOPHYSICAL INST. PILOT REPORT. ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM OBS ASH DATE/TIME: 18/0115Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL260 MOVING TO W 20-25 KNOTS. FCST ASH CLOUD +6H: 18/0730Z FCST ASH CLOUD +12H: 18/1330Z FCST ASH CLOUD +18H: 18/1930Z REMARKS: ASH IS NOT OBSERVED IN IMAGERY ALTHOUGH THERE ARE EXTENSIVE CLOUDS PRESENT. ASH WAS LAST OBSERVED BY THE GEOPHYSICAL INSTITUTE AND LOCAL AIRCRAFT AT 17/2300Z MOVING WEST AT 20-25KT. ... NEXT ADVISORY: WILL BE ISSUED BY 20070418/0745Z